{"source":"polymarket","id":"1059386","ticker":"wta-steiner-werner-2026-09-22","slug":"wta-steiner-werner-2026-09-22","title":"Porto: Valentina Steiner vs Caroline Werner","description":"This market refers to the tennis match between Valentina Steiner and Caroline Werner in the Porto, originally scheduled for September 22, 2026 at 9:00AM ET.\n\nThis market will resolve to 'Valentina Steiner' if Valentina Steiner advances against Caroline Werner.\n\nThis market will resolve to 'Caroline Werner' if Caroline Werner advances against Valentina Steiner.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 6, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50.\n\nIf the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.\n\nIf the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.\n\nThe primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","active":false,"closed":true,"start_date":"2026-09-21T16:14:49Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T17:17:49Z","volume":31623.480033999997,"volume_24hr":31623.480034000007,"volume_24h_change":null,"normalized_vol_24hr":39.857913970947266,"normalized_volume":24.409496307373047,"liquidity":null,"open_interest":22114.822386000003,"categories":["Sports"],"tags":[{"id":"864","slug":"tennis","label":"Tennis"},{"id":"1","slug":"sports","label":"Sports"},{"id":"100639","slug":"games","label":"Games"}],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"","top_outcome_probability":1.0,"top_outcome_prob_24h_change":0.6699999999999999,"top_outcome_volume_24h_change":30954.859096000007,"updated_at":"2026-09-22T17:29:50.844083Z","fetched_at":"2026-09-22T17:29:50.844083Z","added_at":"2026-09-21T16:23:18.584958Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22","chart_24h":[0.0,0.0,35.0,36.515152,41.515152,41.515152,43.00769,43.00769,43.00769,48.00769,48.00769,81.07019,81.07019,81.07019,83.244104,83.244104,83.244104,83.244104,95.466327,95.466327,100.466327,100.466327,100.466327,100.466327,106.021883,106.021883,106.021883,164.781883,164.78188300000002,206.320345,228.059476,276.365032,641.3650319999999,641.365032,4166.378135,8767.31085,15121.995524,31623.480034000007],"kind":"live","markets":[{"source":"polymarket","id":"4797703","event_id":"1059386","slug":"wta-steiner-werner-2026-09-22","question":"Porto: Valentina Steiner vs Caroline Werner","group_item_title":null,"description":"This market refers to the tennis match between Valentina Steiner and Caroline Werner in the Porto, originally scheduled for September 22, 2026 at 9:00AM ET.\n\nThis market will resolve to 'Valentina Steiner' if Valentina Steiner advances against Caroline Werner.\n\nThis market will resolve to 'Caroline Werner' if Caroline Werner advances against Valentina Steiner.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 6, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50.\n\nIf the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.\n\nIf the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.\n\nThe primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","outcomes":["Valentina Steiner","Caroline Werner"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-09-21T16:14:49Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T17:17:49Z","volume":30954.859095999996,"volume_24hr":30954.859096000007,"prob_24h_change":0.6699999999999999,"volume_24h_change":30954.859096000007,"normalized_vol_24hr":42.81373977661133,"normalized_volume":31.37010383605957,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-22T17:29:50.928395Z","fetched_at":"2026-09-22T17:29:50.928395Z","added_at":"2026-09-21T16:23:18.603186Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22/wta-steiner-werner-2026-09-22","event_title":"Porto: Valentina Steiner vs Caroline Werner","chart_24h":[0.33,0.33,0.4,0.37,0.38,0.39,0.395,0.395,0.405,0.36,0.365,0.355,0.345,0.355,0.355,0.355,0.355,0.355,0.355,0.355,0.355,0.355,0.35,0.675,0.555,0.895,1.0]},{"source":"polymarket","id":"4797704","event_id":"1059386","slug":"wta-steiner-werner-2026-09-22-completed-match","question":"Porto: Completed Match: Valentina Steiner vs Caroline Werner","group_item_title":"Completed Match","description":"This market refers to the tennis match between Valentina Steiner and Caroline Werner in the Porto, originally scheduled for September 22, 2026 at 9:00AM ET. This market will resolve to \"Yes\" if all games and sets required to determine a match winner under governing body or event organizer rules are played to completion through normal play. Otherwise, if the match is not completed for any reason, it will resolve to \"No.\" If a forfeit of any kind occurs, including but not limited to a walkover or retirement, this market will resolve \"No.\" If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 6, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to \"No.\" The primary resolution source for this market is the official statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 2 hours after the event's conclusion, a consensus of credible reporting may be used instead.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","outcomes":["Yes","No"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.009,"active":false,"closed":true,"start_date":"2026-09-21T16:14:49Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T17:17:49Z","volume":400.0,"volume_24hr":400.0,"prob_24h_change":0.5,"volume_24h_change":360.0,"normalized_vol_24hr":14.386107444763184,"normalized_volume":10.540861129760742,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-22T17:29:50.928395Z","fetched_at":"2026-09-22T17:29:50.928395Z","added_at":"2026-09-21T16:23:18.603186Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22/wta-steiner-werner-2026-09-22-completed-match","event_title":"Porto: Valentina Steiner vs Caroline Werner","chart_24h":[0.5,0.5,0.5,1.0]},{"source":"polymarket","id":"4798198","event_id":"1059386","slug":"wta-steiner-werner-2026-09-22-first-set-winner-Steiner-vs-Werner","question":"Set 1 Winner: Valentina Steiner vs Caroline Werner","group_item_title":"Porto: Valentina Steiner vs Caroline Werner Set 1 Winner","description":"This market refers to the tennis match between Valentina Steiner and Caroline Werner in the Porto, originally scheduled for September 22, 2026 at 9:00AM ET.\nThis market will resolve to “Valentina Steiner” if Valentina Steiner wins the first set. It will resolve to “Caroline Werner” if Caroline Werner wins the first set.\nIf the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50.\nIf the match is canceled (not played at all) or play has not begun by October 6, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.\nResolution will be based on official WTA Challenger match statistics.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","outcomes":["Valentina Steiner","Caroline Werner"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-09-21T16:44:24Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T16:05:28Z","volume":5.0,"volume_24hr":5.0,"prob_24h_change":0.33999999999999997,"volume_24h_change":5.0,"normalized_vol_24hr":1.285508155822754,"normalized_volume":0.9419060945510864,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-22T16:28:41.952352Z","fetched_at":"2026-09-22T16:28:41.952352Z","added_at":"2026-09-21T17:02:28.583435Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22/wta-steiner-werner-2026-09-22-first-set-winner-Steiner-vs-Werner","event_title":"Porto: Valentina Steiner vs Caroline Werner","chart_24h":[0.66,0.66,0.665,0.66,0.665,0.665,0.66,0.665,0.67,0.375,0.37,0.38,0.385,0.38,0.385,0.825,0.9995,1.0]},{"source":"polymarket","id":"4798288","event_id":"1059386","slug":"wta-steiner-werner-2026-09-22-set-handicap-home-1pt5","question":"Set Handicap: Valentina Steiner (-1.5) vs Caroline Werner (+1.5)","group_item_title":"Porto: Valentina Steiner vs Caroline Werner Set Handicap +/-1.5","description":"This market refers to the tennis match between Valentina Steiner and Caroline Werner in the Porto, originally scheduled for September 22, 2026 at 9:00AM ET.\nThis market will resolve to \"Valentina Steiner\" if Valentina Steiner wins by 2 or more sets than Caroline Werner, based on the final completed score. Otherwise, it will resolve to \"Caroline Werner.\"\nIf the match begins but is not completed due to retirement, default, or disqualification, this market will resolve 50-50, unless the outcome of this market has already been unconditionally determined by the completed portion of play under the match format published by the tournament organizer for that round. For example, if the deciding set has begun when the match ends, Valentina Steiner can no longer win by 2 or more sets, and this market will resolve to \"Caroline Werner.\"\nIf the match is canceled before play begins, or a result has not been determined by October 6, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.\nResolution will be based on official WTA Challenger results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","outcomes":["Valentina Steiner","Caroline Werner"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.009,"active":false,"closed":true,"start_date":"2026-09-21T16:44:32Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T17:17:46Z","volume":34.925284,"volume_24hr":34.925284,"prob_24h_change":0.51,"volume_24h_change":34.925284,"normalized_vol_24hr":5.136071681976318,"normalized_volume":3.7632570266723633,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-22T17:29:50.928395Z","fetched_at":"2026-09-22T17:29:50.928395Z","added_at":"2026-09-21T17:02:28.583435Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22/wta-steiner-werner-2026-09-22-set-handicap-home-1pt5","event_title":"Porto: Valentina Steiner vs Caroline Werner","chart_24h":[0.49,0.485,0.49,0.485,0.485,0.49,0.195,0.19,0.2,0.205,0.2,0.195,0.46,0.37,0.82,1.0]},{"source":"polymarket","id":"4798213","event_id":"1059386","slug":"wta-steiner-werner-2026-09-22-set-totals-2pt5","question":"Valentina Steiner vs. Caroline Werner: Total Sets O/U 2.5","group_item_title":"Porto: Valentina Steiner vs Caroline Werner Total Sets: O/U 2.5","description":"This market refers to the tennis match between Valentina Steiner and Caroline Werner in the Porto, originally scheduled for September 22, 2026 at 9:00AM ET.\nIf the match is played to completion, this market will resolve to \"Over\" if the total number of sets played equals or exceeds 3, and to \"Under\" otherwise. A set counts as played once it has begun, even if it is not played to completion. A super tie breaker is considered as one (1) set.\nIf the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution.\nIf a player retires, withdraws, is defaulted, or is disqualified, or the match otherwise begins but is not completed, this market will resolve based on any outcome that was already unequivocally determined at the time play stopped. An outcome is considered unequivocally determined if it would have been guaranteed under every possible completion of the match played according to the match format published by the tournament organizer for that round. For example, for a line of 2.5, if play stops with the players at one set each, completing the match would have required at least one additional set, resulting in at least 3 sets played, so \"Over\" would resolve as the winning outcome. If neither outcome was already determined at the time play stopped, this market will resolve 50-50.\nIf the match is canceled, or has not been completed by October 6, 2026, 11:59 PM ET, this market will resolve 50-50, unless an outcome was already unequivocally determined as described above.\nThe primary resolution source for this market will be official WTA Challenger statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","outcomes":["Over 2.5","Under 2.5"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.01,"active":false,"closed":true,"start_date":"2026-09-21T16:44:26Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T17:17:49Z","volume":100.0,"volume_24hr":100.0,"prob_24h_change":-0.5,"volume_24h_change":100.0,"normalized_vol_24hr":8.528674125671387,"normalized_volume":6.249053955078125,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-22T17:29:50.928395Z","fetched_at":"2026-09-22T17:29:50.928395Z","added_at":"2026-09-21T17:02:28.583435Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22/wta-steiner-werner-2026-09-22-set-totals-2pt5","event_title":"Porto: Valentina Steiner vs Caroline Werner","chart_24h":[0.5,0.505,0.5,0.505,0.5,0.34,0.505,0.37,0.36,0.355,0.445,0.685,0.145,0.0]},{"source":"polymarket","id":"4798264","event_id":"1059386","slug":"wta-steiner-werner-2026-09-22-match-total-21pt5","question":"Steiner vs. Werner: Match O/U 21.5","group_item_title":"Porto: Valentina Steiner vs Caroline Werner Match O/U 21.5","description":"This market refers to the tennis match between Valentina Steiner and Caroline Werner in the Porto, originally scheduled for September 22, 2026 at 9:00AM ET.\nThis market will resolve to \"Over\" if the total number of games completed equals or exceeds 22. Otherwise, it will resolve to \"Under.\" All tiebreaks, including any Champions/Super tiebreak, count as one (1) game.\nIf the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution.\nIf the match is permanently abandoned before completion, or if the match has not been completed by October 6, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered unconditionally determined if it would have been guaranteed under every possible completion of the match played according to the match format published by the tournament organizer for that round, including whether a final set is played as a full set or as a match tiebreak. For example, for a line of 21.5, if play stops at 6-3, 5-6, completing the match would have required at least 2 additional games, resulting in at least 22 games played, so \"Over\" would resolve as the winning outcome. Likewise, if the published format replaces the final set with a match tiebreak, that tiebreak counts as one (1) game, so for a line of 22.5, if play stops at 6-2, 3-3, the match could have reached at most 22 games and \"Under\" would resolve as the winning outcome.\nThe primary resolution source for this market will be official WTA Challenger statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","outcomes":["Over","Under"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.009,"active":false,"closed":true,"start_date":"2026-09-21T16:44:26Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T17:17:46Z","volume":23.913045,"volume_24hr":23.913045,"prob_24h_change":-0.505,"volume_24h_change":23.913045,"normalized_vol_24hr":4.139835834503174,"normalized_volume":3.03330397605896,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-22T17:29:50.928395Z","fetched_at":"2026-09-22T17:29:50.928395Z","added_at":"2026-09-21T17:02:28.583435Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22/wta-steiner-werner-2026-09-22-match-total-21pt5","event_title":"Porto: Valentina Steiner vs Caroline Werner","chart_24h":[0.505,0.5,0.5,0.505,0.475,0.46,0.455,0.455,0.465,0.455,0.455,0.455,0.455,0.46,0.46,0.7,0.5,0.195,0.0]},{"source":"polymarket","id":"4798294","event_id":"1059386","slug":"wta-steiner-werner-2026-09-22-set-handicap-away-1pt5","question":"Set Handicap: Caroline Werner (-1.5) vs Valentina Steiner (+1.5)","group_item_title":"Porto: Valentina Steiner vs Caroline Werner Set Handicap +/-1.5","description":"This market refers to the tennis match between Caroline Werner and Valentina Steiner in the Porto, originally scheduled for September 22, 2026 at 9:00AM ET.\nThis market will resolve to \"Caroline Werner\" if Caroline Werner wins by 2 or more sets than Valentina Steiner, based on the final completed score. Otherwise, it will resolve to \"Valentina Steiner.\"\nIf the match begins but is not completed due to retirement, default, or disqualification, this market will resolve 50-50, unless the outcome of this market has already been unconditionally determined by the completed portion of play under the match format published by the tournament organizer for that round. For example, if the deciding set has begun when the match ends, Caroline Werner can no longer win by 2 or more sets, and this market will resolve to \"Valentina Steiner.\"\nIf the match is canceled before play begins, or a result has not been determined by October 6, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.\nResolution will be based on official WTA Challenger results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","outcomes":["Caroline Werner","Valentina Steiner"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.01,"active":false,"closed":true,"start_date":"2026-09-21T16:44:27Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T16:07:28Z","volume":104.78260900000001,"volume_24hr":104.78260900000001,"prob_24h_change":-0.5,"volume_24h_change":104.78260900000001,"normalized_vol_24hr":8.70052719116211,"normalized_volume":6.374973297119141,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-22T16:28:41.952352Z","fetched_at":"2026-09-22T16:28:41.952352Z","added_at":"2026-09-21T17:02:28.583435Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22/wta-steiner-werner-2026-09-22-set-handicap-away-1pt5","event_title":"Porto: Valentina Steiner vs Caroline Werner","chart_24h":[0.5,0.505,0.5,0.505,0.455,0.45,0.445,0.44,0.445,0.44,0.445,0.445,0.12,0.005,0.0]},{"source":"polymarket","id":"4798207","event_id":"1059386","slug":"wta-steiner-werner-2026-09-22-set-2-winner-Steiner-vs-Werner","question":"Set 2 Winner: Valentina Steiner vs Caroline Werner","group_item_title":"Porto: Valentina Steiner vs Caroline Werner Set 2 Winner","description":"This market refers to the tennis match between Valentina Steiner and Caroline Werner in the Porto, originally scheduled for September 22, 2026 at 9:00AM ET.\nThis market will resolve to “Valentina Steiner” if Valentina Steiner wins set 2. It will resolve to “Caroline Werner” if Caroline Werner wins set 2.\nIf the match begins but set 2 is not completed with a winner determined (including the match ending before set 2 is reached), this market will resolve 50-50.\nIf the match is canceled (not played at all) or play has not begun by October 6, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.\nResolution will be based on official WTA Challenger match statistics.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","outcomes":["Valentina Steiner","Caroline Werner"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.009,"active":false,"closed":true,"start_date":"2026-09-21T16:44:44Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T17:17:46Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.355,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-22T17:29:50.928395Z","fetched_at":"2026-09-22T17:29:50.928395Z","added_at":"2026-09-21T17:02:28.583435Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22/wta-steiner-werner-2026-09-22-set-2-winner-Steiner-vs-Werner","event_title":"Porto: Valentina Steiner vs Caroline Werner","chart_24h":[0.645,0.655,0.655,0.65,0.655,0.66,0.66,0.655,0.655,0.58,0.665,0.5,0.5,1.0]},{"source":"polymarket","id":"4798240","event_id":"1059386","slug":"wta-steiner-werner-2026-09-22-set-2-total-8pt5","question":"Steiner vs. Werner: Set 2 Games O/U 8.5","group_item_title":"Porto: Valentina Steiner vs Caroline Werner Set 2 O/U 8.5","description":"This market refers to the tennis match between Valentina Steiner and Caroline Werner in the Porto, originally scheduled for September 22, 2026 at 9:00AM ET.\nThis market will resolve to \"Over\" if the total number of games completed in set 2 equals or exceeds 9. Otherwise, it will resolve to \"Under.\"\nAny tiebreak in set 2 counts as one (1) game toward the total.\nIf set 2 begins but is not completed, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered unconditionally determined if it would have been guaranteed under every possible completion of the set played according to the match format published by the tournament organizer for that round, including whether the set is decided by a tiebreak or played as a match tiebreak. For example, for a line of 9.5, if play stops with set 2 at 5-4, completing the set would have required at least 1 additional game, resulting in at least 10 games played, so \"Over\" would resolve as the winning outcome.\nIf the match ends before set 2 is reached, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by October 6, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.\nResolution will be based on official WTA Challenger results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","outcomes":["Over","Under"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.18,"active":false,"closed":true,"start_date":"2026-09-21T16:44:37Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T16:40:12Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.5,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-22T16:47:43.205371Z","fetched_at":"2026-09-22T16:47:43.205371Z","added_at":"2026-09-21T17:02:28.583435Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22/wta-steiner-werner-2026-09-22-set-2-total-8pt5","event_title":"Porto: Valentina Steiner vs Caroline Werner","chart_24h":[0.5,0.5,1.0]},{"source":"polymarket","id":"4798248","event_id":"1059386","slug":"wta-steiner-werner-2026-09-22-set-2-total-9pt5","question":"Steiner vs. Werner: Set 2 Games O/U 9.5","group_item_title":"Porto: Valentina Steiner vs Caroline Werner Set 2 O/U 9.5","description":"This market refers to the tennis match between Valentina Steiner and Caroline Werner in the Porto, originally scheduled for September 22, 2026 at 9:00AM ET.\nThis market will resolve to \"Over\" if the total number of games completed in set 2 equals or exceeds 10. Otherwise, it will resolve to \"Under.\"\nAny tiebreak in set 2 counts as one (1) game toward the total.\nIf set 2 begins but is not completed, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered unconditionally determined if it would have been guaranteed under every possible completion of the set played according to the match format published by the tournament organizer for that round, including whether the set is decided by a tiebreak or played as a match tiebreak. For example, for a line of 9.5, if play stops with set 2 at 5-4, completing the set would have required at least 1 additional game, resulting in at least 10 games played, so \"Over\" would resolve as the winning outcome.\nIf the match ends before set 2 is reached, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by October 6, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.\nResolution will be based on official WTA Challenger results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","outcomes":["Over","Under"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-09-21T16:44:30Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T16:49:42Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.5,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-22T17:09:39.831041Z","fetched_at":"2026-09-22T17:09:39.831041Z","added_at":"2026-09-21T17:02:28.583435Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22/wta-steiner-werner-2026-09-22-set-2-total-9pt5","event_title":"Porto: Valentina Steiner vs Caroline Werner","chart_24h":[0.5,0.995,1.0]},{"source":"polymarket","id":"4798256","event_id":"1059386","slug":"wta-steiner-werner-2026-09-22-set-2-total-10pt5","question":"Steiner vs. Werner: Set 2 Games O/U 10.5","group_item_title":"Porto: Valentina Steiner vs Caroline Werner Set 2 O/U 10.5","description":"This market refers to the tennis match between Valentina Steiner and Caroline Werner in the Porto, originally scheduled for September 22, 2026 at 9:00AM ET.\nThis market will resolve to \"Over\" if the total number of games completed in set 2 equals or exceeds 11. Otherwise, it will resolve to \"Under.\"\nAny tiebreak in set 2 counts as one (1) game toward the total.\nIf set 2 begins but is not completed, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered unconditionally determined if it would have been guaranteed under every possible completion of the set played according to the match format published by the tournament organizer for that round, including whether the set is decided by a tiebreak or played as a match tiebreak. For example, for a line of 9.5, if play stops with set 2 at 5-4, completing the set would have required at least 1 additional game, resulting in at least 10 games played, so \"Over\" would resolve as the winning outcome.\nIf the match ends before set 2 is reached, this market will resolve 50-50. If the match is canceled before play begins, or play has not begun by October 6, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.\nResolution will be based on official WTA Challenger results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","outcomes":["Over","Under"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.01,"active":false,"closed":true,"start_date":"2026-09-21T16:44:36Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T17:03:12Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.5,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-22T17:09:39.831041Z","fetched_at":"2026-09-22T17:09:39.831041Z","added_at":"2026-09-21T17:02:28.583435Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22/wta-steiner-werner-2026-09-22-set-2-total-10pt5","event_title":"Porto: Valentina Steiner vs Caroline Werner","chart_24h":[0.5,0.5,0.91,1.0]},{"source":"polymarket","id":"4798221","event_id":"1059386","slug":"wta-steiner-werner-2026-09-22-first-set-total-8pt5","question":"Steiner vs. Werner: Set 1 Games O/U 8.5","group_item_title":"Porto: Valentina Steiner vs Caroline Werner Set 1 O/U 8.5","description":"This market refers to the tennis match between Valentina Steiner and Caroline Werner in the Porto, originally scheduled for September 22, 2026 at 9:00AM ET.\nThis market will resolve to \"Over\" if the total number of games completed in the first set equals or exceeds 9. Otherwise, it will resolve to \"Under.\" Any first-set tiebreak counts as one (1) game.\nIf the match is postponed or suspended, this market will remain open until the first set has been completed. A postponement alone will not trigger a 50-50 resolution.\nIf the match is permanently abandoned before the first set is completed, or if the first set has not been completed by October 6, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered unconditionally determined if it would have been guaranteed under every possible completion of the set played according to the match format published by the tournament organizer for that round, including whether the set is decided by a tiebreak. For example, for a line of 9.5, if play stops with the first set at 5-4, completing the set would have required at least 1 additional game, resulting in at least 10 games played, so \"Over\" would resolve as the winning outcome.\nThe primary resolution source for this market will be official WTA Challenger statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","outcomes":["Over","Under"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-09-21T16:44:39Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T16:05:28Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.5,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-22T16:28:41.952352Z","fetched_at":"2026-09-22T16:28:41.952352Z","added_at":"2026-09-21T17:02:28.583435Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22/wta-steiner-werner-2026-09-22-first-set-total-8pt5","event_title":"Porto: Valentina Steiner vs Caroline Werner","chart_24h":[0.5,0.495,0.5,0.655,0.66,0.64,0.35,0.5,0.5,0.0005,0.0]},{"source":"polymarket","id":"4798227","event_id":"1059386","slug":"wta-steiner-werner-2026-09-22-first-set-total-9pt5","question":"Steiner vs. Werner: Set 1 Games O/U 9.5","group_item_title":"Porto: Valentina Steiner vs Caroline Werner Set 1 O/U 9.5","description":"This market refers to the tennis match between Valentina Steiner and Caroline Werner in the Porto, originally scheduled for September 22, 2026 at 9:00AM ET.\nThis market will resolve to \"Over\" if the total number of games completed in the first set equals or exceeds 10. Otherwise, it will resolve to \"Under.\" Any first-set tiebreak counts as one (1) game.\nIf the match is postponed or suspended, this market will remain open until the first set has been completed. A postponement alone will not trigger a 50-50 resolution.\nIf the match is permanently abandoned before the first set is completed, or if the first set has not been completed by October 6, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered unconditionally determined if it would have been guaranteed under every possible completion of the set played according to the match format published by the tournament organizer for that round, including whether the set is decided by a tiebreak. For example, for a line of 9.5, if play stops with the first set at 5-4, completing the set would have required at least 1 additional game, resulting in at least 10 games played, so \"Over\" would resolve as the winning outcome.\nThe primary resolution source for this market will be official WTA Challenger statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","outcomes":["Over","Under"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-09-21T16:44:44Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T16:05:28Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.675,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-22T16:28:41.952352Z","fetched_at":"2026-09-22T16:28:41.952352Z","added_at":"2026-09-21T17:02:28.583435Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22/wta-steiner-werner-2026-09-22-first-set-total-9pt5","event_title":"Porto: Valentina Steiner vs Caroline Werner","chart_24h":[0.675,0.435,0.685,0.43,0.435,0.43,0.435,0.43,0.43,0.5,0.5,0.0005,0.0]},{"source":"polymarket","id":"4798233","event_id":"1059386","slug":"wta-steiner-werner-2026-09-22-first-set-total-10pt5","question":"Steiner vs. Werner: Set 1 Games O/U 10.5","group_item_title":"Porto: Valentina Steiner vs Caroline Werner Set 1 O/U 10.5","description":"This market refers to the tennis match between Valentina Steiner and Caroline Werner in the Porto, originally scheduled for September 22, 2026 at 9:00AM ET.\nThis market will resolve to \"Over\" if the total number of games completed in the first set equals or exceeds 11. Otherwise, it will resolve to \"Under.\" Any first-set tiebreak counts as one (1) game.\nIf the match is postponed or suspended, this market will remain open until the first set has been completed. A postponement alone will not trigger a 50-50 resolution.\nIf the match is permanently abandoned before the first set is completed, or if the first set has not been completed by October 6, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered unconditionally determined if it would have been guaranteed under every possible completion of the set played according to the match format published by the tournament organizer for that round, including whether the set is decided by a tiebreak. For example, for a line of 9.5, if play stops with the first set at 5-4, completing the set would have required at least 1 additional game, resulting in at least 10 games played, so \"Over\" would resolve as the winning outcome.\nThe primary resolution source for this market will be official WTA Challenger statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","outcomes":["Over","Under"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-09-21T16:44:40Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T16:05:28Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.21,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-22T16:28:41.952352Z","fetched_at":"2026-09-22T16:28:41.952352Z","added_at":"2026-09-21T17:02:28.583435Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22/wta-steiner-werner-2026-09-22-first-set-total-10pt5","event_title":"Porto: Valentina Steiner vs Caroline Werner","chart_24h":[0.21,0.23,0.215,0.5,0.5,0.0005,0.0]},{"source":"polymarket","id":"4798272","event_id":"1059386","slug":"wta-steiner-werner-2026-09-22-match-total-22pt5","question":"Steiner vs. Werner: Match O/U 22.5","group_item_title":"Porto: Valentina Steiner vs Caroline Werner Match O/U 22.5","description":"This market refers to the tennis match between Valentina Steiner and Caroline Werner in the Porto, originally scheduled for September 22, 2026 at 9:00AM ET.\nThis market will resolve to \"Over\" if the total number of games completed equals or exceeds 23. Otherwise, it will resolve to \"Under.\" All tiebreaks, including any Champions/Super tiebreak, count as one (1) game.\nIf the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution.\nIf the match is permanently abandoned before completion, or if the match has not been completed by October 6, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered unconditionally determined if it would have been guaranteed under every possible completion of the match played according to the match format published by the tournament organizer for that round, including whether a final set is played as a full set or as a match tiebreak. For example, for a line of 21.5, if play stops at 6-3, 5-6, completing the match would have required at least 2 additional games, resulting in at least 22 games played, so \"Over\" would resolve as the winning outcome. Likewise, if the published format replaces the final set with a match tiebreak, that tiebreak counts as one (1) game, so for a line of 22.5, if play stops at 6-2, 3-3, the match could have reached at most 22 games and \"Under\" would resolve as the winning outcome.\nThe primary resolution source for this market will be official WTA Challenger statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","outcomes":["Over","Under"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.01,"active":false,"closed":true,"start_date":"2026-09-21T16:44:36Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T17:17:49Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.495,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-22T17:29:50.928395Z","fetched_at":"2026-09-22T17:29:50.928395Z","added_at":"2026-09-21T17:02:28.583435Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22/wta-steiner-werner-2026-09-22-match-total-22pt5","event_title":"Porto: Valentina Steiner vs Caroline Werner","chart_24h":[0.495,0.49,0.495,0.49,0.495,0.49,0.49,0.495,0.48,0.485,0.48,0.485,0.415,0.315,0.41,0.395,0.4,0.395,0.405,0.235,0.455,0.5,0.185,0.0]},{"source":"polymarket","id":"4798281","event_id":"1059386","slug":"wta-steiner-werner-2026-09-22-match-total-23pt5","question":"Steiner vs. Werner: Match O/U 23.5","group_item_title":"Porto: Valentina Steiner vs Caroline Werner Match O/U 23.5","description":"This market refers to the tennis match between Valentina Steiner and Caroline Werner in the Porto, originally scheduled for September 22, 2026 at 9:00AM ET.\nThis market will resolve to \"Over\" if the total number of games completed equals or exceeds 24. Otherwise, it will resolve to \"Under.\" All tiebreaks, including any Champions/Super tiebreak, count as one (1) game.\nIf the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution.\nIf the match is permanently abandoned before completion, or if the match has not been completed by October 6, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered unconditionally determined if it would have been guaranteed under every possible completion of the match played according to the match format published by the tournament organizer for that round, including whether a final set is played as a full set or as a match tiebreak. For example, for a line of 21.5, if play stops at 6-3, 5-6, completing the match would have required at least 2 additional games, resulting in at least 22 games played, so \"Over\" would resolve as the winning outcome. Likewise, if the published format replaces the final set with a match tiebreak, that tiebreak counts as one (1) game, so for a line of 22.5, if play stops at 6-2, 3-3, the match could have reached at most 22 games and \"Under\" would resolve as the winning outcome.\nThe primary resolution source for this market will be official WTA Challenger statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","outcomes":["Over","Under"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.01,"active":false,"closed":true,"start_date":"2026-09-21T16:44:33Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T17:17:46Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.495,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-22T17:29:50.928395Z","fetched_at":"2026-09-22T17:29:50.928395Z","added_at":"2026-09-21T17:02:28.583435Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22/wta-steiner-werner-2026-09-22-match-total-23pt5","event_title":"Porto: Valentina Steiner vs Caroline Werner","chart_24h":[0.495,0.49,0.495,0.49,0.495,0.48,0.485,0.4,0.315,0.395,0.355,0.36,0.355,0.36,0.39,0.39,0.64,0.5,0.505,0.655,0.735,0.5,0.0]},{"source":"polymarket","id":"4802457","event_id":"1059386","slug":"wta-steiner-werner-2026-09-22-game-handicap-away-4pt5","question":"Game Spread: Caroline Werner (-4.5) vs Valentina Steiner (+4.5)","group_item_title":"Porto: Valentina Steiner vs Caroline Werner Game Spread +/-4.5","description":"This market will resolve to \"Caroline Werner\" if Caroline Werner wins 4.5 or more total games than Valentina Steiner in the upcoming tennis match, scheduled for September 22, 2026 at 9:00AM ET. Otherwise, this market will resolve to \"Valentina Steiner\".\nGames won will be counted across all sets played in the match. A set decided by a tiebreak will count as one game for the winner of that tiebreak, and a match tiebreak played in place of a final set will also count as one game for its winner.\nIf the match is canceled (not played at all), or is delayed beyond 14 days from the scheduled date without completion at 11:59 PM ET, this market will resolve 50-50.\nIf the match begins but is not completed due to retirement, default, or disqualification, this market will resolve 50-50, unless the outcome of this market has already been unconditionally determined by the completed portion of play under the match format published by the tournament organizer for that round. For example, if the match ends at a point where Caroline Werner could no longer have finished 4.5 or more games ahead even by winning every remaining game, this market will resolve to \"Valentina Steiner\".\nIf the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.\nThe primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png","outcomes":["Caroline Werner","Valentina Steiner"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.009,"active":false,"closed":true,"start_date":"2026-09-21T18:44:21Z","end_date":"2026-09-29T13:00:00Z","closed_time":"2026-09-22T17:03:12Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.505,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-22T17:09:39.831041Z","fetched_at":"2026-09-22T17:09:39.831041Z","added_at":"2026-09-21T18:56:11.964474Z","url":"https://polymarket.com/event/wta-steiner-werner-2026-09-22/wta-steiner-werner-2026-09-22-game-handicap-away-4pt5","event_title":"Porto: Valentina Steiner vs Caroline Werner","chart_24h":[0.505,0.505,0.5,0.505,0.505,0.5,0.705,0.445,0.435,0.235,0.5,0.5,0.5,0.095,0.0]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/polymarket/1059386","as_of":"2026-09-22T17:59:46.165723Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"Porto: Valentina Steiner vs Caroline Werner\" — top market at 100% probability across 17 outcomes","source_url":null}}