{"source":"polymarket","id":"933311","ticker":"atp-bailly-barrena-2026-08-31","slug":"atp-bailly-barrena-2026-08-31","title":"Porto: Gilles Arnaud Bailly vs Alex Barrena","description":"This market refers to the tennis match between Gilles Arnaud Bailly and Alex Barrena in the Porto, originally scheduled for August 31, 2026 at 5:00AM ET.\n\nThis market will resolve to 'Gilles Arnaud Bailly' if Gilles Arnaud Bailly advances against Alex Barrena.\n\nThis market will resolve to 'Alex Barrena' if Alex Barrena advances against Gilles Arnaud Bailly.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 14, 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 ATP Tour. A consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","active":false,"closed":true,"start_date":"2026-08-29T23:06:06Z","end_date":"2026-09-07T09:00:00Z","closed_time":"2026-09-01T15:51:03Z","volume":42856.49403399999,"volume_24hr":0.0,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":25.886850357055664,"liquidity":null,"open_interest":14050.861654999999,"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":null,"top_outcome_volume_24h_change":null,"updated_at":"2026-09-02T16:02:01.032780Z","fetched_at":"2026-09-01T16:07:44.725018Z","added_at":"2026-08-29T23:13:42.055278Z","url":"https://polymarket.com/event/atp-bailly-barrena-2026-08-31","chart_24h":null,"kind":"live","markets":[{"source":"polymarket","id":"3986444","event_id":"933311","slug":"atp-bailly-barrena-2026-08-31","question":"Porto: Gilles Arnaud Bailly vs Alex Barrena","group_item_title":null,"description":"This market refers to the tennis match between Gilles Arnaud Bailly and Alex Barrena in the Porto, originally scheduled for August 31, 2026 at 5:00AM ET.\n\nThis market will resolve to 'Gilles Arnaud Bailly' if Gilles Arnaud Bailly advances against Alex Barrena.\n\nThis market will resolve to 'Alex Barrena' if Alex Barrena advances against Gilles Arnaud Bailly.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 14, 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 ATP Tour. A consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Gilles Arnaud Bailly","Alex Barrena"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-08-29T23:06:06Z","end_date":"2026-09-07T09:00:00Z","closed_time":"2026-09-01T15:51:01Z","volume":42444.45597299999,"volume_24hr":0.0,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":33.314598083496094,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-02T16:02:00.571953Z","fetched_at":"2026-09-01T16:07:44.792388Z","added_at":"2026-08-29T23:13:42.191656Z","url":"https://polymarket.com/event/atp-bailly-barrena-2026-08-31/atp-bailly-barrena-2026-08-31","event_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena","chart_24h":null},{"source":"polymarket","id":"3986445","event_id":"933311","slug":"atp-bailly-barrena-2026-08-31-completed-match","question":"Porto: Completed Match: Gilles Arnaud Bailly vs Alex Barrena","group_item_title":"Completed Match","description":"This market refers to the tennis match between Gilles Arnaud Bailly and Alex Barrena in the Porto, originally scheduled for August 31, 2026 at 5:00AM 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 September 14, 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/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Yes","No"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-08-29T23:06:06Z","end_date":"2026-09-07T09:00:00Z","closed_time":"2026-09-01T15:51:01Z","volume":210.0,"volume_24hr":0.0,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":8.40344524383545,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-02T16:02:00.571953Z","fetched_at":"2026-09-01T16:07:44.792388Z","added_at":"2026-08-29T23:13:42.191656Z","url":"https://polymarket.com/event/atp-bailly-barrena-2026-08-31/atp-bailly-barrena-2026-08-31-completed-match","event_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena","chart_24h":null},{"source":"polymarket","id":"3986870","event_id":"933311","slug":"atp-bailly-barrena-2026-08-31-first-set-winner-Bailly-vs-Barrena","question":"Set 1 Winner: Bailly vs Barrena","group_item_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena Set 1 Winner","description":"This market refers to the tennis match between Gilles Arnaud Bailly and Alex Barrena in the Porto, originally scheduled for August 31, 2026 at 5:00AM ET.\nThis market will resolve to “Bailly” if Gilles Arnaud Bailly wins the first set. It will resolve to “Barrena” if Alex Barrena 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 September 14, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.\nResolution will be based on official Challenger match statistics.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Bailly","Barrena"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-08-29T23:44:24Z","end_date":"2026-09-07T09:00:00Z","closed_time":"2026-09-01T15:04:21Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-01T15:13:03.244779Z","fetched_at":"2026-09-01T15:13:03.244779Z","added_at":"2026-08-29T23:51:04.553870Z","url":"https://polymarket.com/event/atp-bailly-barrena-2026-08-31/atp-bailly-barrena-2026-08-31-first-set-winner-Bailly-vs-Barrena","event_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena","chart_24h":null},{"source":"polymarket","id":"3986878","event_id":"933311","slug":"atp-bailly-barrena-2026-08-31-match-total-21pt5","question":"Bailly vs. Barrena: Match O/U 21.5","group_item_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena Match O/U 21.5","description":"This market refers to the tennis match between Gilles Arnaud Bailly and Alex Barrena in the Porto, originally scheduled for August 31, 2026 at 5:00AM 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 September 14, 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 determined if it would have been guaranteed had the match been played to completion using the minimum number of additional games required. 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.\nThe primary resolution source for this market will be official Challenger statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over","Under"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-08-29T23:44:23Z","end_date":"2026-09-07T09:00:00Z","closed_time":"2026-09-01T15:32:16Z","volume":134.187515,"volume_24hr":0.0,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":7.063510894775391,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-02T15:38:36.210040Z","fetched_at":"2026-09-01T15:49:00.793591Z","added_at":"2026-08-29T23:51:04.553870Z","url":"https://polymarket.com/event/atp-bailly-barrena-2026-08-31/atp-bailly-barrena-2026-08-31-match-total-21pt5","event_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena","chart_24h":null},{"source":"polymarket","id":"3986879","event_id":"933311","slug":"atp-bailly-barrena-2026-08-31-first-set-total-8pt5","question":"Bailly vs. Barrena: Set 1 Games O/U 8.5","group_item_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena Set 1 O/U 8.5","description":"This market refers to the tennis match between Gilles Arnaud Bailly and Alex Barrena in the Porto, originally scheduled for August 31, 2026 at 5:00AM 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 September 14, 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 determined if it would have been guaranteed had the set been played to completion using the minimum number of additional games required. 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 Challenger statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over","Under"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.2,"active":false,"closed":true,"start_date":"2026-08-29T23:44:24Z","end_date":"2026-09-07T09:00:00Z","closed_time":"2026-09-01T14:30:28Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-01T14:35:08.278756Z","fetched_at":"2026-09-01T14:35:08.278756Z","added_at":"2026-08-29T23:51:04.553870Z","url":"https://polymarket.com/event/atp-bailly-barrena-2026-08-31/atp-bailly-barrena-2026-08-31-first-set-total-8pt5","event_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena","chart_24h":null},{"source":"polymarket","id":"3986886","event_id":"933311","slug":"atp-bailly-barrena-2026-08-31-set-2-winner-Bailly-vs-Barrena","question":"Set 2 Winner: Bailly vs Barrena","group_item_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena Set 2 Winner","description":"This market refers to the tennis match between Gilles Arnaud Bailly and Alex Barrena in the Porto, originally scheduled for August 31, 2026 at 5:00AM ET.\nThis market will resolve to “Bailly” if Gilles Arnaud Bailly wins set 2. It will resolve to “Barrena” if Alex Barrena 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 September 14, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.\nResolution will be based on official Challenger match statistics.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Bailly","Barrena"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-08-29T23:44:22Z","end_date":"2026-09-07T09:00:00Z","closed_time":"2026-09-01T15:51:03Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-01T16:07:44.792388Z","fetched_at":"2026-09-01T16:07:44.792388Z","added_at":"2026-08-29T23:51:04.553870Z","url":"https://polymarket.com/event/atp-bailly-barrena-2026-08-31/atp-bailly-barrena-2026-08-31-set-2-winner-Bailly-vs-Barrena","event_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena","chart_24h":null},{"source":"polymarket","id":"3986891","event_id":"933311","slug":"atp-bailly-barrena-2026-08-31-set-2-total-8pt5","question":"Bailly vs. Barrena: Set 2 Games O/U 8.5","group_item_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena Set 2 O/U 8.5","description":"This market refers to the tennis match between Gilles Arnaud Bailly and Alex Barrena in the Porto, originally scheduled for August 31, 2026 at 5:00AM 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 determined if it would have been guaranteed had the set been played to completion using the minimum number of additional games required. 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 September 14, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.\nResolution will be based on official Challenger results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over","Under"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-08-29T23:44:26Z","end_date":"2026-09-07T09:00:00Z","closed_time":"2026-09-01T15:32:16Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-01T15:49:00.793591Z","fetched_at":"2026-09-01T15:49:00.793591Z","added_at":"2026-08-29T23:51:04.553870Z","url":"https://polymarket.com/event/atp-bailly-barrena-2026-08-31/atp-bailly-barrena-2026-08-31-set-2-total-8pt5","event_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena","chart_24h":null},{"source":"polymarket","id":"3986906","event_id":"933311","slug":"atp-bailly-barrena-2026-08-31-set-handicap-home-1pt5","question":"Set Handicap: Bailly (-1.5) vs Barrena (+1.5)","group_item_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena Set Handicap +/-1.5","description":"This market refers to the tennis match between Gilles Arnaud Bailly and Alex Barrena in the Porto, originally scheduled for August 31, 2026 at 5:00AM ET.\nThis market will resolve to \"Bailly\" if Gilles Arnaud Bailly wins by 2 or more sets than Alex Barrena, based on the final completed score. Otherwise, it will resolve to \"Barrena.\"\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. For example, if the deciding set has begun when the match ends, Gilles Arnaud Bailly can no longer win by 2 or more sets, and this market will resolve to \"Barrena.\"\nIf the match is canceled before play begins, or a result has not been determined by September 14, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.\nResolution will be based on official Challenger results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Bailly","Barrena"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-08-29T23:44:21Z","end_date":"2026-09-07T09:00:00Z","closed_time":"2026-09-01T15:51:01Z","volume":38.858821999999996,"volume_24hr":0.0,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":3.984778642654419,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-02T16:02:00.571953Z","fetched_at":"2026-09-01T16:07:44.792388Z","added_at":"2026-08-29T23:51:04.553870Z","url":"https://polymarket.com/event/atp-bailly-barrena-2026-08-31/atp-bailly-barrena-2026-08-31-set-handicap-home-1pt5","event_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena","chart_24h":null},{"source":"polymarket","id":"3986910","event_id":"933311","slug":"atp-bailly-barrena-2026-08-31-first-set-total-9pt5","question":"Bailly vs. Barrena: Set 1 Games O/U 9.5","group_item_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena Set 1 O/U 9.5","description":"This market refers to the tennis match between Gilles Arnaud Bailly and Alex Barrena in the Porto, originally scheduled for August 31, 2026 at 5:00AM 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 September 14, 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 determined if it would have been guaranteed had the set been played to completion using the minimum number of additional games required. 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 Challenger statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over","Under"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-08-29T23:44:25Z","end_date":"2026-09-07T09:00:00Z","closed_time":"2026-09-01T14:42:45Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-01T14:54:05.921127Z","fetched_at":"2026-09-01T14:54:05.921127Z","added_at":"2026-08-29T23:51:04.553870Z","url":"https://polymarket.com/event/atp-bailly-barrena-2026-08-31/atp-bailly-barrena-2026-08-31-first-set-total-9pt5","event_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena","chart_24h":null},{"source":"polymarket","id":"3986935","event_id":"933311","slug":"atp-bailly-barrena-2026-08-31-first-set-total-10pt5","question":"Bailly vs. Barrena: Set 1 Games O/U 10.5","group_item_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena Set 1 O/U 10.5","description":"This market refers to the tennis match between Gilles Arnaud Bailly and Alex Barrena in the Porto, originally scheduled for August 31, 2026 at 5:00AM 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 September 14, 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 determined if it would have been guaranteed had the set been played to completion using the minimum number of additional games required. 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 Challenger statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over","Under"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-08-29T23:44:21Z","end_date":"2026-09-07T09:00:00Z","closed_time":"2026-09-01T14:45:46Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-01T14:54:05.921127Z","fetched_at":"2026-09-01T14:54:05.921127Z","added_at":"2026-08-29T23:51:04.553870Z","url":"https://polymarket.com/event/atp-bailly-barrena-2026-08-31/atp-bailly-barrena-2026-08-31-first-set-total-10pt5","event_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena","chart_24h":null},{"source":"polymarket","id":"3986900","event_id":"933311","slug":"atp-bailly-barrena-2026-08-31-set-totals-2pt5","question":"Gilles Arnaud Bailly vs. Alex Barrena: Total Sets O/U 2.5","group_item_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena Total Sets: O/U 2.5","description":"This market refers to the tennis match between Gilles Arnaud Bailly and Alex Barrena in the Porto, originally scheduled for August 31, 2026 at 5:00AM 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 determined if it would have been guaranteed had the match been played to completion using the minimum number of additional sets required. 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 September 14, 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 Challenger statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over 2.5","Under 2.5"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-08-29T23:44:22Z","end_date":"2026-09-07T09:00:00Z","closed_time":"2026-09-01T15:51:03Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-01T16:07:44.792388Z","fetched_at":"2026-09-01T16:07:44.792388Z","added_at":"2026-08-29T23:51:04.553870Z","url":"https://polymarket.com/event/atp-bailly-barrena-2026-08-31/atp-bailly-barrena-2026-08-31-set-totals-2pt5","event_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena","chart_24h":null},{"source":"polymarket","id":"3986911","event_id":"933311","slug":"atp-bailly-barrena-2026-08-31-match-total-22pt5","question":"Bailly vs. Barrena: Match O/U 22.5","group_item_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena Match O/U 22.5","description":"This market refers to the tennis match between Gilles Arnaud Bailly and Alex Barrena in the Porto, originally scheduled for August 31, 2026 at 5:00AM 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 September 14, 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 determined if it would have been guaranteed had the match been played to completion using the minimum number of additional games required. 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.\nThe primary resolution source for this market will be official Challenger statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over","Under"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-08-29T23:44:22Z","end_date":"2026-09-07T09:00:00Z","closed_time":"2026-09-01T15:51:01Z","volume":28.991724,"volume_24hr":0.0,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":3.393449544906616,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-02T16:02:00.571953Z","fetched_at":"2026-09-01T16:07:44.792388Z","added_at":"2026-08-29T23:51:04.553870Z","url":"https://polymarket.com/event/atp-bailly-barrena-2026-08-31/atp-bailly-barrena-2026-08-31-match-total-22pt5","event_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena","chart_24h":null},{"source":"polymarket","id":"3986921","event_id":"933311","slug":"atp-bailly-barrena-2026-08-31-set-2-total-9pt5","question":"Bailly vs. Barrena: Set 2 Games O/U 9.5","group_item_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena Set 2 O/U 9.5","description":"This market refers to the tennis match between Gilles Arnaud Bailly and Alex Barrena in the Porto, originally scheduled for August 31, 2026 at 5:00AM 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 determined if it would have been guaranteed had the set been played to completion using the minimum number of additional games required. 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 September 14, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.\nResolution will be based on official Challenger results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over","Under"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.005,"active":false,"closed":true,"start_date":"2026-08-29T23:44:23Z","end_date":"2026-09-07T09:00:00Z","closed_time":"2026-09-01T15:51:01Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-01T16:07:44.792388Z","fetched_at":"2026-09-01T16:07:44.792388Z","added_at":"2026-08-29T23:51:04.553870Z","url":"https://polymarket.com/event/atp-bailly-barrena-2026-08-31/atp-bailly-barrena-2026-08-31-set-2-total-9pt5","event_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena","chart_24h":null},{"source":"polymarket","id":"3986926","event_id":"933311","slug":"atp-bailly-barrena-2026-08-31-set-handicap-away-1pt5","question":"Set Handicap: Barrena (-1.5) vs Bailly (+1.5)","group_item_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena Set Handicap +/-1.5","description":"This market refers to the tennis match between Alex Barrena and Gilles Arnaud Bailly in the Porto, originally scheduled for August 31, 2026 at 5:00AM ET.\nThis market will resolve to \"Barrena\" if Alex Barrena wins by 2 or more sets than Gilles Arnaud Bailly, based on the final completed score. Otherwise, it will resolve to \"Bailly.\"\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. For example, if the deciding set has begun when the match ends, Alex Barrena can no longer win by 2 or more sets, and this market will resolve to \"Bailly.\"\nIf the match is canceled before play begins, or a result has not been determined by September 14, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.\nResolution will be based on official Challenger results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Barrena","Bailly"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-08-29T23:44:25Z","end_date":"2026-09-07T09:00:00Z","closed_time":"2026-09-01T15:04:28Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-01T15:13:03.244779Z","fetched_at":"2026-09-01T15:13:03.244779Z","added_at":"2026-08-29T23:51:04.553870Z","url":"https://polymarket.com/event/atp-bailly-barrena-2026-08-31/atp-bailly-barrena-2026-08-31-set-handicap-away-1pt5","event_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena","chart_24h":null},{"source":"polymarket","id":"3986941","event_id":"933311","slug":"atp-bailly-barrena-2026-08-31-match-total-23pt5","question":"Bailly vs. Barrena: Match O/U 23.5","group_item_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena Match O/U 23.5","description":"This market refers to the tennis match between Gilles Arnaud Bailly and Alex Barrena in the Porto, originally scheduled for August 31, 2026 at 5:00AM 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 September 14, 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 determined if it would have been guaranteed had the match been played to completion using the minimum number of additional games required. 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.\nThe primary resolution source for this market will be official Challenger statistics; however, a consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over","Under"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-08-29T23:44:24Z","end_date":"2026-09-07T09:00:00Z","closed_time":"2026-09-01T15:51:01Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-01T16:07:44.792388Z","fetched_at":"2026-09-01T16:07:44.792388Z","added_at":"2026-08-29T23:51:04.553870Z","url":"https://polymarket.com/event/atp-bailly-barrena-2026-08-31/atp-bailly-barrena-2026-08-31-match-total-23pt5","event_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena","chart_24h":null},{"source":"polymarket","id":"3986943","event_id":"933311","slug":"atp-bailly-barrena-2026-08-31-set-2-total-10pt5","question":"Bailly vs. Barrena: Set 2 Games O/U 10.5","group_item_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena Set 2 O/U 10.5","description":"This market refers to the tennis match between Gilles Arnaud Bailly and Alex Barrena in the Porto, originally scheduled for August 31, 2026 at 5:00AM 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 determined if it would have been guaranteed had the set been played to completion using the minimum number of additional games required. 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 September 14, 2026, 11:59 PM ET (14 days after the scheduled start), this market will also resolve 50-50.\nResolution will be based on official Challenger results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over","Under"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.005,"active":false,"closed":true,"start_date":"2026-08-29T23:44:20Z","end_date":"2026-09-07T09:00:00Z","closed_time":"2026-09-01T15:51:01Z","volume":0.0,"volume_24hr":0.0,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-09-01T16:07:44.792388Z","fetched_at":"2026-09-01T16:07:44.792388Z","added_at":"2026-08-29T23:51:04.553870Z","url":"https://polymarket.com/event/atp-bailly-barrena-2026-08-31/atp-bailly-barrena-2026-08-31-set-2-total-10pt5","event_title":"Porto: Gilles Arnaud Bailly vs Alex Barrena","chart_24h":null}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/polymarket/933311","as_of":"2026-09-02T19:07:41.218047Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"Porto: Gilles Arnaud Bailly vs Alex Barrena\" — top market at 100% probability across 16 outcomes","source_url":null}}