{"source":"polymarket","id":"856366","ticker":"atp-ayeni-stephen-2026-08-16","slug":"atp-ayeni-stephen-2026-08-16","title":"Roehampton: Alafia ayeni vs Zach Stephens","description":"This market refers to the tennis match between Alafia ayeni and Zach Stephens in the Roehampton, Great Britain, Qualifying, originally scheduled for August 16, 2026 at 9:00AM ET.\n\nThis market will resolve to 'Alafia ayeni' if Alafia ayeni advances against Zach Stephens.\n\nThis market will resolve to 'Zach Stephens' if Zach Stephens advances against Alafia ayeni.\n\nIf the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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":"2026-08-15T23:06:13Z","end_date":"2026-08-23T13:00:00Z","closed_time":"2026-08-16T15:58:00Z","volume":8330.781775999998,"volume_24hr":8330.781776,"volume_24h_change":null,"normalized_vol_24hr":34.00248336791992,"normalized_volume":18.56334686279297,"liquidity":null,"open_interest":6145.13174,"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":0.18500000000000005,"top_outcome_volume_24h_change":8330.781776,"updated_at":"2026-08-16T16:09:09.304311Z","fetched_at":"2026-08-16T16:09:09.304311Z","added_at":"2026-08-15T23:27:01.734399Z","url":"https://polymarket.com/event/atp-ayeni-stephen-2026-08-16","chart_24h":[0.0,3.072288,10.872888,10.872888,10.872888,10.872888,10.872888,10.872888,10.872888,10.872888,90.08166500000002,90.08166500000002,127.08166500000002,127.08166500000002,127.08166500000002,127.08166500000002,127.08166500000002,3650.740418,3811.740418,3878.0251230000003,5812.000394,8329.121776,8330.781776],"markets":[{"source":"polymarket","id":"3619323","event_id":"856366","slug":"atp-ayeni-stephen-2026-08-16","question":"Roehampton: Alafia ayeni vs Zach Stephens","group_item_title":null,"description":"This market refers to the tennis match between Alafia ayeni and Zach Stephens in the Roehampton, Great Britain, Qualifying, originally scheduled for August 16, 2026 at 9:00AM ET.\n\nThis market will resolve to 'Alafia ayeni' if Alafia ayeni advances against Zach Stephens.\n\nThis market will resolve to 'Zach Stephens' if Zach Stephens advances against Alafia ayeni.\n\nIf the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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":["Alafia ayeni","Zach Stephens"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-08-15T23:06:13Z","end_date":"2026-08-23T13:00:00Z","closed_time":"2026-08-16T15:58:00Z","volume":8330.781775999998,"volume_24hr":8330.781776,"prob_24h_change":0.18500000000000005,"volume_24h_change":8330.781776,"normalized_vol_24hr":34.530120849609375,"normalized_volume":23.91196060180664,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-08-16T16:10:53.326338Z","fetched_at":"2026-08-16T16:09:09.402466Z","added_at":"2026-08-15T23:27:01.821510Z","url":"https://polymarket.com/event/atp-ayeni-stephen-2026-08-16/atp-ayeni-stephen-2026-08-16","event_title":"Roehampton: Alafia ayeni vs Zach Stephens","chart_24h":[0.815,0.89,0.905,0.905,0.905,0.905,0.905,0.905,0.915,0.9,0.9,0.969,0.9995,1.0]},{"source":"polymarket","id":"3619324","event_id":"856366","slug":"atp-ayeni-stephen-2026-08-16-completed-match","question":"Roehampton, Great Britain, Qualifying: Completed Match: Alafia ayeni vs Zach Stephens","group_item_title":"Completed Match","description":"This market refers to the tennis match between Alafia ayeni and Zach Stephens in the Roehampton, Great Britain, Qualifying, originally scheduled for August 16, 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 is delayed beyond 7 days from the scheduled date without a winner determined, 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":"2026-08-15T23:06:13Z","end_date":"2026-08-23T13:00:00Z","closed_time":"2026-08-16T15:58:00Z","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":"2026-08-16T16:09:14.396805Z","fetched_at":"2026-08-16T16:09:09.402466Z","added_at":"2026-08-15T23:27:01.821510Z","url":"https://polymarket.com/event/atp-ayeni-stephen-2026-08-16/atp-ayeni-stephen-2026-08-16-completed-match","event_title":"Roehampton: Alafia ayeni vs Zach Stephens","chart_24h":[0.5,0.5,0.5,0.995,1.0]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/polymarket/856366","as_of":"2026-08-16T18:01:51.782752Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"Roehampton: Alafia ayeni vs Zach Stephens\" — top market at 100% probability across 2 outcomes","source_url":null}}