{"source":"polymarket","id":"1049806","ticker":"itf-kostov1-simion2-2026-09-20","slug":"itf-kostov1-simion2-2026-09-20","title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","description":"This market refers to the tennis match between Andzhelina Kostova and Oana Georgeta Simion in the W50 Plovdiv, Qualifying, originally scheduled for September 20, 2026 at 3:30AM ET.\n\nThis market will resolve to 'Andzhelina Kostova' if Andzhelina Kostova advances against Oana Georgeta Simion.\n\nThis market will resolve to 'Oana Georgeta Simion' if Oana Georgeta Simion advances against Andzhelina Kostova.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 4, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","active":true,"closed":false,"start_date":"2026-09-19T20:14:23Z","end_date":"2026-09-27T07:30:00Z","closed_time":null,"volume":3307.644861,"volume_24hr":3307.644861,"volume_24h_change":null,"normalized_vol_24hr":25.223777770996094,"normalized_volume":14.935173988342285,"liquidity":73155.96533,"open_interest":1877.3145,"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":"Completed Match","top_outcome_probability":0.9995,"top_outcome_prob_24h_change":0.49950000000000006,"top_outcome_volume_24h_change":330.0,"updated_at":"2026-09-20T10:14:09.813532Z","fetched_at":"2026-09-20T10:14:09.813532Z","added_at":"2026-09-19T20:16:18.074531Z","url":"https://polymarket.com/event/itf-kostov1-simion2-2026-09-20","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,1422.3400000000001,1422.3400000000001,1422.3400000000001,1555.3145000000002,3307.644861],"kind":"live","markets":[{"source":"polymarket","id":"4733244","event_id":"1049806","slug":"itf-kostov1-simion2-2026-09-20-completed-match","question":"W50 Plovdiv, Qualifying: Completed Match: Andzhelina Kostova vs Oana Georgeta Simion","group_item_title":"Completed Match","description":"This market refers to the tennis match between Andzhelina Kostova and Oana Georgeta Simion in the W50 Plovdiv, Qualifying, originally scheduled for September 20, 2026 at 3:30AM 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 4, 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/itf-5206dc6c54.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","outcomes":["Yes","No"],"outcome_prices":[0.9995,0.0005],"probability":0.9995,"spread":0.001,"active":true,"closed":false,"start_date":"2026-09-19T20:14:23Z","end_date":"2026-09-27T07:30:00Z","closed_time":null,"volume":330.0,"volume_24hr":330.0,"prob_24h_change":0.49950000000000006,"volume_24h_change":330.0,"normalized_vol_24hr":15.267548561096191,"normalized_volume":9.87691593170166,"liquidity":353.048,"categories":["Sports"],"countries":[],"updated_at":"2026-09-20T10:14:10.008678Z","fetched_at":"2026-09-20T10:14:10.008678Z","added_at":"2026-09-19T20:16:18.251493Z","url":"https://polymarket.com/event/itf-kostov1-simion2-2026-09-20/itf-kostov1-simion2-2026-09-20-completed-match","event_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","chart_24h":[0.5,0.5,0.9995]},{"source":"polymarket","id":"4733240","event_id":"1049806","slug":"itf-kostov1-simion2-2026-09-20","question":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","group_item_title":null,"description":"This market refers to the tennis match between Andzhelina Kostova and Oana Georgeta Simion in the W50 Plovdiv, Qualifying, originally scheduled for September 20, 2026 at 3:30AM ET.\n\nThis market will resolve to 'Andzhelina Kostova' if Andzhelina Kostova advances against Oana Georgeta Simion.\n\nThis market will resolve to 'Oana Georgeta Simion' if Oana Georgeta Simion advances against Andzhelina Kostova.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 4, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","outcomes":["Andzhelina Kostova","Oana Georgeta Simion"],"outcome_prices":[0.0005,0.9995],"probability":0.0005,"spread":0.001,"active":true,"closed":false,"start_date":"2026-09-19T20:14:25Z","end_date":"2026-09-27T07:30:00Z","closed_time":null,"volume":2977.644861,"volume_24hr":2977.644861,"prob_24h_change":-0.4995,"volume_24h_change":2977.644861,"normalized_vol_24hr":29.019628524780273,"normalized_volume":18.773441314697266,"liquidity":39783.80693,"categories":["Sports"],"countries":[],"updated_at":"2026-09-20T10:14:10.008678Z","fetched_at":"2026-09-20T10:14:10.008678Z","added_at":"2026-09-19T20:16:18.251493Z","url":"https://polymarket.com/event/itf-kostov1-simion2-2026-09-20/itf-kostov1-simion2-2026-09-20","event_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","chart_24h":[0.5,0.455,0.45,0.47,0.49,0.08,0.08,0.075,0.1,0.095,0.07,0.09,0.04,0.0105,0.0005]},{"source":"polymarket","id":"4735033","event_id":"1049806","slug":"itf-kostov1-simion2-2026-09-20-set-handicap-away-1pt5","question":"Set Handicap: Oana Georgeta Simion (-1.5) vs Andzhelina Kostova (+1.5)","group_item_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion Set Handicap +/-1.5","description":"This market refers to the tennis match between Oana Georgeta Simion and Andzhelina Kostova in the W50 Plovdiv, originally scheduled for September 20, 2026 at 3:30AM ET.\nThis market will resolve to \"Oana Georgeta Simion\" if Oana Georgeta Simion wins by 2 or more sets than Andzhelina Kostova, based on the final completed score. Otherwise, it will resolve to \"Andzhelina Kostova.\"\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, Oana Georgeta Simion can no longer win by 2 or more sets, and this market will resolve to \"Andzhelina Kostova.\"\nIf the match is canceled before play begins, or a result has not been determined by October 4, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.\nResolution will be based on official ITF results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","outcomes":["Oana Georgeta Simion","Andzhelina Kostova"],"outcome_prices":[0.9995,0.0005],"probability":0.9995,"spread":0.001,"active":true,"closed":false,"start_date":"2026-09-19T20:45:52Z","end_date":"2026-09-27T07:30:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.49950000000000006,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":2890.196,"categories":["Sports"],"countries":[],"updated_at":"2026-09-20T10:14:10.008678Z","fetched_at":"2026-09-20T10:14:10.008678Z","added_at":"2026-09-19T21:08:20.965070Z","url":"https://polymarket.com/event/itf-kostov1-simion2-2026-09-20/itf-kostov1-simion2-2026-09-20-set-handicap-away-1pt5","event_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","chart_24h":[0.5,0.505,0.5,0.5,0.5,0.505,0.5,0.5,0.5,0.9995]},{"source":"polymarket","id":"4734992","event_id":"1049806","slug":"itf-kostov1-simion2-2026-09-20-set-2-winner-Kostova-vs-Simion","question":"Set 2 Winner: Andzhelina Kostova vs Oana Georgeta Simion","group_item_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion Set 2 Winner","description":"This market refers to the tennis match between Andzhelina Kostova and Oana Georgeta Simion in the W50 Plovdiv, originally scheduled for September 20, 2026 at 3:30AM ET.\nThis market will resolve to “Andzhelina Kostova” if Andzhelina Kostova wins set 2. It will resolve to “Oana Georgeta Simion” if Oana Georgeta Simion 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 4, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.\nResolution will be based on official ITF match statistics.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","outcomes":["Andzhelina Kostova","Oana Georgeta Simion"],"outcome_prices":[0.0005,0.9995],"probability":0.0005,"spread":0.001,"active":true,"closed":false,"start_date":"2026-09-19T20:45:52Z","end_date":"2026-09-27T07:30:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.4995,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":4018.245,"categories":["Sports"],"countries":[],"updated_at":"2026-09-20T10:14:10.008678Z","fetched_at":"2026-09-20T10:14:10.008678Z","added_at":"2026-09-19T21:08:20.965070Z","url":"https://polymarket.com/event/itf-kostov1-simion2-2026-09-20/itf-kostov1-simion2-2026-09-20-set-2-winner-Kostova-vs-Simion","event_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","chart_24h":[0.5,0.5,0.5,0.0005]},{"source":"polymarket","id":"4734993","event_id":"1049806","slug":"itf-kostov1-simion2-2026-09-20-set-totals-2pt5","question":"Andzhelina Kostova vs. Oana Georgeta Simion: Total Sets O/U 2.5","group_item_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion Total Sets: O/U 2.5","description":"This market refers to the tennis match between Andzhelina Kostova and Oana Georgeta Simion in the W50 Plovdiv, originally scheduled for September 20, 2026 at 3:30AM 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 4, 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 ITF statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","outcomes":["Over 2.5","Under 2.5"],"outcome_prices":[0.0005,0.9995],"probability":0.0005,"spread":0.001,"active":true,"closed":false,"start_date":"2026-09-19T20:45:50Z","end_date":"2026-09-27T07:30:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.4995,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":3717.4742,"categories":["Sports"],"countries":[],"updated_at":"2026-09-20T10:14:10.008678Z","fetched_at":"2026-09-20T10:14:10.008678Z","added_at":"2026-09-19T21:08:20.965070Z","url":"https://polymarket.com/event/itf-kostov1-simion2-2026-09-20/itf-kostov1-simion2-2026-09-20-set-totals-2pt5","event_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","chart_24h":[0.5,0.5,0.5,0.5,0.5,0.5,0.5,0.0005]},{"source":"polymarket","id":"4734999","event_id":"1049806","slug":"itf-kostov1-simion2-2026-09-20-set-2-total-8pt5","question":"Kostova vs. Simion: Set 2 Games O/U 8.5","group_item_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion Set 2 O/U 8.5","description":"This market refers to the tennis match between Andzhelina Kostova and Oana Georgeta Simion in the W50 Plovdiv, originally scheduled for September 20, 2026 at 3:30AM 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 4, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.\nResolution will be based on official ITF results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","outcomes":["Over","Under"],"outcome_prices":[0.0005,0.9995],"probability":0.0005,"spread":0.001,"active":true,"closed":false,"start_date":"2026-09-19T20:45:52Z","end_date":"2026-09-27T07:30:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.4895,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":3810.7742,"categories":["Sports"],"countries":[],"updated_at":"2026-09-20T10:14:10.008678Z","fetched_at":"2026-09-20T10:14:10.008678Z","added_at":"2026-09-19T21:08:20.965070Z","url":"https://polymarket.com/event/itf-kostov1-simion2-2026-09-20/itf-kostov1-simion2-2026-09-20-set-2-total-8pt5","event_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","chart_24h":[0.49,0.495,0.5,0.5,0.0005]},{"source":"polymarket","id":"4735001","event_id":"1049806","slug":"itf-kostov1-simion2-2026-09-20-set-2-total-9pt5","question":"Kostova vs. Simion: Set 2 Games O/U 9.5","group_item_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion Set 2 O/U 9.5","description":"This market refers to the tennis match between Andzhelina Kostova and Oana Georgeta Simion in the W50 Plovdiv, originally scheduled for September 20, 2026 at 3:30AM 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 4, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.\nResolution will be based on official ITF results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","outcomes":["Over","Under"],"outcome_prices":[0.0005,0.9995],"probability":0.0005,"spread":0.001,"active":true,"closed":false,"start_date":"2026-09-19T20:45:50Z","end_date":"2026-09-27T07:30:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.4895,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":3717.4742,"categories":["Sports"],"countries":[],"updated_at":"2026-09-20T10:14:10.008678Z","fetched_at":"2026-09-20T10:14:10.008678Z","added_at":"2026-09-19T21:08:20.965070Z","url":"https://polymarket.com/event/itf-kostov1-simion2-2026-09-20/itf-kostov1-simion2-2026-09-20-set-2-total-9pt5","event_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","chart_24h":[0.49,0.495,0.5,0.5,0.0005]},{"source":"polymarket","id":"4735005","event_id":"1049806","slug":"itf-kostov1-simion2-2026-09-20-set-2-total-10pt5","question":"Kostova vs. Simion: Set 2 Games O/U 10.5","group_item_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion Set 2 O/U 10.5","description":"This market refers to the tennis match between Andzhelina Kostova and Oana Georgeta Simion in the W50 Plovdiv, originally scheduled for September 20, 2026 at 3:30AM 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 4, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.\nResolution will be based on official ITF results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","outcomes":["Over","Under"],"outcome_prices":[0.0005,0.9995],"probability":0.0005,"spread":0.001,"active":true,"closed":false,"start_date":"2026-09-19T20:45:51Z","end_date":"2026-09-27T07:30:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.4895,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":3717.4742,"categories":["Sports"],"countries":[],"updated_at":"2026-09-20T10:14:10.008678Z","fetched_at":"2026-09-20T10:14:10.008678Z","added_at":"2026-09-19T21:08:20.965070Z","url":"https://polymarket.com/event/itf-kostov1-simion2-2026-09-20/itf-kostov1-simion2-2026-09-20-set-2-total-10pt5","event_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","chart_24h":[0.49,0.495,0.5,0.5,0.0005]},{"source":"polymarket","id":"4735010","event_id":"1049806","slug":"itf-kostov1-simion2-2026-09-20-match-total-21pt5","question":"Kostova vs. Simion: Match O/U 21.5","group_item_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion Match O/U 21.5","description":"This market refers to the tennis match between Andzhelina Kostova and Oana Georgeta Simion in the W50 Plovdiv, originally scheduled for September 20, 2026 at 3:30AM 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 4, 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 ITF statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","outcomes":["Over","Under"],"outcome_prices":[0.0005,0.9995],"probability":0.0005,"spread":0.001,"active":true,"closed":false,"start_date":"2026-09-19T20:45:51Z","end_date":"2026-09-27T07:30:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.4895,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":3712.5242,"categories":["Sports"],"countries":[],"updated_at":"2026-09-20T10:14:10.008678Z","fetched_at":"2026-09-20T10:14:10.008678Z","added_at":"2026-09-19T21:08:20.965070Z","url":"https://polymarket.com/event/itf-kostov1-simion2-2026-09-20/itf-kostov1-simion2-2026-09-20-match-total-21pt5","event_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","chart_24h":[0.49,0.495,0.495,0.495,0.5,0.5,0.5,0.0005]},{"source":"polymarket","id":"4735015","event_id":"1049806","slug":"itf-kostov1-simion2-2026-09-20-match-total-22pt5","question":"Kostova vs. Simion: Match O/U 22.5","group_item_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion Match O/U 22.5","description":"This market refers to the tennis match between Andzhelina Kostova and Oana Georgeta Simion in the W50 Plovdiv, originally scheduled for September 20, 2026 at 3:30AM 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 4, 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 ITF statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","outcomes":["Over","Under"],"outcome_prices":[0.0005,0.9995],"probability":0.0005,"spread":0.001,"active":true,"closed":false,"start_date":"2026-09-19T20:45:52Z","end_date":"2026-09-27T07:30:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.4895,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":3717.4742,"categories":["Sports"],"countries":[],"updated_at":"2026-09-20T10:14:10.008678Z","fetched_at":"2026-09-20T10:14:10.008678Z","added_at":"2026-09-19T21:08:20.965070Z","url":"https://polymarket.com/event/itf-kostov1-simion2-2026-09-20/itf-kostov1-simion2-2026-09-20-match-total-22pt5","event_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","chart_24h":[0.49,0.495,0.495,0.495,0.5,0.5,0.5,0.0005]},{"source":"polymarket","id":"4735022","event_id":"1049806","slug":"itf-kostov1-simion2-2026-09-20-match-total-23pt5","question":"Kostova vs. Simion: Match O/U 23.5","group_item_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion Match O/U 23.5","description":"This market refers to the tennis match between Andzhelina Kostova and Oana Georgeta Simion in the W50 Plovdiv, originally scheduled for September 20, 2026 at 3:30AM 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 4, 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 ITF statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","outcomes":["Over","Under"],"outcome_prices":[0.0005,0.9995],"probability":0.0005,"spread":0.001,"active":true,"closed":false,"start_date":"2026-09-19T20:45:51Z","end_date":"2026-09-27T07:30:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.4895,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":3717.4742,"categories":["Sports"],"countries":[],"updated_at":"2026-09-20T10:14:10.008678Z","fetched_at":"2026-09-20T10:14:10.008678Z","added_at":"2026-09-19T21:08:20.965070Z","url":"https://polymarket.com/event/itf-kostov1-simion2-2026-09-20/itf-kostov1-simion2-2026-09-20-match-total-23pt5","event_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","chart_24h":[0.49,0.495,0.495,0.495,0.5,0.5,0.5,0.0005]},{"source":"polymarket","id":"4734991","event_id":"1049806","slug":"itf-kostov1-simion2-2026-09-20-first-set-winner-Kostova-vs-Simion","question":"Set 1 Winner: Andzhelina Kostova vs Oana Georgeta Simion","group_item_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion Set 1 Winner","description":"This market refers to the tennis match between Andzhelina Kostova and Oana Georgeta Simion in the W50 Plovdiv, originally scheduled for September 20, 2026 at 3:30AM ET.\nThis market will resolve to “Andzhelina Kostova” if Andzhelina Kostova wins the first set. It will resolve to “Oana Georgeta Simion” if Oana Georgeta Simion 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 4, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.\nResolution will be based on official ITF match statistics.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","outcomes":["Andzhelina Kostova","Oana Georgeta Simion"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-09-19T20:45:52Z","end_date":"2026-09-27T07:30:00Z","closed_time":"2026-09-20T09:51:24Z","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":"2026-09-20T10:14:10.008678Z","fetched_at":"2026-09-20T10:14:10.008678Z","added_at":"2026-09-19T21:08:20.965070Z","url":"https://polymarket.com/event/itf-kostov1-simion2-2026-09-20/itf-kostov1-simion2-2026-09-20-first-set-winner-Kostova-vs-Simion","event_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","chart_24h":[0.5,0.495,0.5,0.5,0.5,0.5,0.0005,0.0]},{"source":"polymarket","id":"4734994","event_id":"1049806","slug":"itf-kostov1-simion2-2026-09-20-first-set-total-8pt5","question":"Kostova vs. Simion: Set 1 Games O/U 8.5","group_item_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion Set 1 O/U 8.5","description":"This market refers to the tennis match between Andzhelina Kostova and Oana Georgeta Simion in the W50 Plovdiv, originally scheduled for September 20, 2026 at 3:30AM 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 4, 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 ITF statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","outcomes":["Over","Under"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-09-19T20:45:51Z","end_date":"2026-09-27T07:30:00Z","closed_time":"2026-09-20T09:51:24Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.49,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-20T10:14:10.008678Z","fetched_at":"2026-09-20T10:14:10.008678Z","added_at":"2026-09-19T21:08:20.965070Z","url":"https://polymarket.com/event/itf-kostov1-simion2-2026-09-20/itf-kostov1-simion2-2026-09-20-first-set-total-8pt5","event_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","chart_24h":[0.49,0.495,0.5,0.5,0.0005,0.0]},{"source":"polymarket","id":"4734995","event_id":"1049806","slug":"itf-kostov1-simion2-2026-09-20-first-set-total-9pt5","question":"Kostova vs. Simion: Set 1 Games O/U 9.5","group_item_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion Set 1 O/U 9.5","description":"This market refers to the tennis match between Andzhelina Kostova and Oana Georgeta Simion in the W50 Plovdiv, originally scheduled for September 20, 2026 at 3:30AM 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 4, 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 ITF statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","outcomes":["Over","Under"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-09-19T20:45:52Z","end_date":"2026-09-27T07:30:00Z","closed_time":"2026-09-20T09:51:24Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.49,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-20T10:14:10.008678Z","fetched_at":"2026-09-20T10:14:10.008678Z","added_at":"2026-09-19T21:08:20.965070Z","url":"https://polymarket.com/event/itf-kostov1-simion2-2026-09-20/itf-kostov1-simion2-2026-09-20-first-set-total-9pt5","event_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","chart_24h":[0.49,0.495,0.5,0.5,0.0005,0.0]},{"source":"polymarket","id":"4734996","event_id":"1049806","slug":"itf-kostov1-simion2-2026-09-20-first-set-total-10pt5","question":"Kostova vs. Simion: Set 1 Games O/U 10.5","group_item_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion Set 1 O/U 10.5","description":"This market refers to the tennis match between Andzhelina Kostova and Oana Georgeta Simion in the W50 Plovdiv, originally scheduled for September 20, 2026 at 3:30AM 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 4, 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 ITF statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","outcomes":["Over","Under"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-09-19T20:45:52Z","end_date":"2026-09-27T07:30:00Z","closed_time":"2026-09-20T09:51:24Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.49,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-20T10:14:10.008678Z","fetched_at":"2026-09-20T10:14:10.008678Z","added_at":"2026-09-19T21:08:20.965070Z","url":"https://polymarket.com/event/itf-kostov1-simion2-2026-09-20/itf-kostov1-simion2-2026-09-20-first-set-total-10pt5","event_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","chart_24h":[0.49,0.495,0.5,0.5,0.0005,0.0]},{"source":"polymarket","id":"4735027","event_id":"1049806","slug":"itf-kostov1-simion2-2026-09-20-set-handicap-home-1pt5","question":"Set Handicap: Andzhelina Kostova (-1.5) vs Oana Georgeta Simion (+1.5)","group_item_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion Set Handicap +/-1.5","description":"This market refers to the tennis match between Andzhelina Kostova and Oana Georgeta Simion in the W50 Plovdiv, originally scheduled for September 20, 2026 at 3:30AM ET.\nThis market will resolve to \"Andzhelina Kostova\" if Andzhelina Kostova wins by 2 or more sets than Oana Georgeta Simion, based on the final completed score. Otherwise, it will resolve to \"Oana Georgeta Simion.\"\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, Andzhelina Kostova can no longer win by 2 or more sets, and this market will resolve to \"Oana Georgeta Simion.\"\nIf the match is canceled before play begins, or a result has not been determined by October 4, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.\nResolution will be based on official ITF results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/itf-5206dc6c54.png","outcomes":["Andzhelina Kostova","Oana Georgeta Simion"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-09-19T20:45:51Z","end_date":"2026-09-27T07:30:00Z","closed_time":"2026-09-20T09:51:24Z","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":"2026-09-20T10:14:10.008678Z","fetched_at":"2026-09-20T10:14:10.008678Z","added_at":"2026-09-19T21:08:20.965070Z","url":"https://polymarket.com/event/itf-kostov1-simion2-2026-09-20/itf-kostov1-simion2-2026-09-20-set-handicap-home-1pt5","event_title":"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion","chart_24h":[0.5,0.5,0.5,0.5,0.505,0.5,0.5,0.5,0.0005,0.0]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/polymarket/1049806","as_of":"2026-09-20T10:24:02.672909Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"W50 Plovdiv: Andzhelina Kostova vs Oana Georgeta Simion\" — top market at 0% probability across 16 outcomes","source_url":null}}