{"_meta":{"attribution":"Data aggregated by pdata.world (https://pdata.world) from 8 prediction-market venues; CC BY 4.0; source data © each venue.","canonical_url":"https://pdata.world/events/polymarket/1221187","as_of":"2026-10-20T22:47:10.308670Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"W50 Austin: Sloane Stephens vs Ashley Lahey\" — 3 markets; highest \"\" at 100% as of 2026-10-20 UTC. https://pdata.world/events/polymarket/1221187","source_url":"https://polymarket.com/event/itf-stephe2-lahey1-2026-10-20"},"source":"polymarket","id":"1221187","ticker":"itf-stephe2-lahey1-2026-10-20","slug":"itf-stephe2-lahey1-2026-10-20","title":"W50 Austin: Sloane Stephens vs Ashley Lahey","description":"This market refers to the tennis match between Sloane Stephens and Ashley Lahey in the W50 Austin, Main Draw, originally scheduled for October 20, 2026 at 2:00PM ET.\n\nThis market will resolve to 'Sloane Stephens' if Sloane Stephens advances against Ashley Lahey.\n\nThis market will resolve to 'Ashley Lahey' if Ashley Lahey advances against Sloane Stephens.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 3, 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":"2026-10-20T02:14:17Z","end_date":"2026-10-27T18:00:00Z","closed_time":null,"volume":56931.744303,"volume_24hr":58979.864303,"volume_24h_change":null,"normalized_vol_24hr":47.37640380859375,"normalized_volume":27.23273468017578,"liquidity":70307.97092,"open_interest":43665.271917,"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":0.9995,"top_outcome_prob_24h_change":0.47950000000000004,"top_outcome_volume_24h_change":58979.864303,"updated_at":"2026-10-20T22:26:46.948943Z","fetched_at":"2026-10-20T22:26:46.948943Z","added_at":"2026-10-20T02:29:23.893873Z","url":"https://polymarket.com/event/itf-stephe2-lahey1-2026-10-20","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,198.0,198.0,198.0,201.2967,242.2756,554.031994,554.031994,554.031994,554.031994,593.537365,674.601181,2263.951181,14489.147849,28077.898201,33596.548788,38283.15908900001,58979.864303],"kind":"live","mutually_exclusive":false,"markets_total":3,"markets":[{"source":"polymarket","id":"5952191","event_id":"1221187","slug":"itf-stephe2-lahey1-2026-10-20","question":"W50 Austin: Sloane Stephens vs Ashley Lahey","group_item_title":null,"description":"This market refers to the tennis match between Sloane Stephens and Ashley Lahey in the W50 Austin, Main Draw, originally scheduled for October 20, 2026 at 2:00PM ET.\n\nThis market will resolve to 'Sloane Stephens' if Sloane Stephens advances against Ashley Lahey.\n\nThis market will resolve to 'Ashley Lahey' if Ashley Lahey advances against Sloane Stephens.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 3, 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":["Sloane Stephens","Ashley Lahey"],"outcome_prices":[0.9995,0.0005],"probability":0.9995,"spread":0.001,"active":true,"closed":false,"start_date":"2026-10-20T02:14:17Z","end_date":"2026-10-27T18:00:00Z","closed_time":null,"result":null,"volume":56931.744303,"volume_24hr":58979.864303,"prob_24h_change":0.47950000000000004,"volume_24h_change":58979.864303,"normalized_vol_24hr":50.56068801879883,"normalized_volume":35.176025390625,"liquidity":63581.63983,"categories":["Sports"],"countries":[],"updated_at":"2026-10-20T22:26:47.026703Z","fetched_at":"2026-10-20T22:26:47.026703Z","added_at":"2026-10-20T02:29:23.958937Z","url":"https://polymarket.com/event/itf-stephe2-lahey1-2026-10-20/itf-stephe2-lahey1-2026-10-20","event_title":"W50 Austin: Sloane Stephens vs Ashley Lahey","chart_24h":[0.52,0.915,0.915,0.92,0.9,0.905,0.91,0.9,0.9,0.925,0.89,0.885,0.895,0.895,0.895,0.905,0.91,0.93,0.93,0.93,0.905,0.84,0.975,0.734,0.9995]},{"source":"polymarket","id":"5952382","event_id":"1221187","slug":"itf-stephe2-lahey1-2026-10-20-set-handicap-home-1pt5","question":"Set Handicap: Sloane Stephens (-1.5) vs Ashley Lahey (+1.5)","group_item_title":"W50 Austin: Sloane Stephens vs Ashley Lahey Set Handicap +/-1.5","description":"This market refers to the tennis match between Sloane Stephens and Ashley Lahey in the W50 Austin, originally scheduled for October 20, 2026 at 2:00PM ET.\nThis market will resolve to \"Sloane Stephens\" if Sloane Stephens wins by 2 or more sets than Ashley Lahey, based on the final completed score. Otherwise, it will resolve to \"Ashley Lahey.\"\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, Sloane Stephens can no longer win by 2 or more sets, and this market will resolve to \"Ashley Lahey.\"\nIf the match is canceled before play begins, or a result has not been determined by November 3, 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":["Sloane Stephens","Ashley Lahey"],"outcome_prices":[0.0005,0.9995],"probability":0.0005,"spread":0.001,"active":true,"closed":false,"start_date":"2026-10-20T02:44:12Z","end_date":"2026-10-27T18:00:00Z","closed_time":null,"result":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":1607.82899,"categories":["Sports"],"countries":[],"updated_at":"2026-10-20T22:26:47.026703Z","fetched_at":"2026-10-20T22:26:47.026703Z","added_at":"2026-10-20T02:50:32.227155Z","url":"https://polymarket.com/event/itf-stephe2-lahey1-2026-10-20/itf-stephe2-lahey1-2026-10-20-set-handicap-home-1pt5","event_title":"W50 Austin: Sloane Stephens vs Ashley Lahey","chart_24h":[0.5,0.495,0.495,0.66,0.665,0.5,0.0045,0.0005]},{"source":"polymarket","id":"5952387","event_id":"1221187","slug":"itf-stephe2-lahey1-2026-10-20-set-handicap-away-1pt5","question":"Set Handicap: Ashley Lahey (-1.5) vs Sloane Stephens (+1.5)","group_item_title":"W50 Austin: Sloane Stephens vs Ashley Lahey Set Handicap +/-1.5","description":"This market refers to the tennis match between Ashley Lahey and Sloane Stephens in the W50 Austin, originally scheduled for October 20, 2026 at 2:00PM ET.\nThis market will resolve to \"Ashley Lahey\" if Ashley Lahey wins by 2 or more sets than Sloane Stephens, based on the final completed score. Otherwise, it will resolve to \"Sloane Stephens.\"\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, Ashley Lahey can no longer win by 2 or more sets, and this market will resolve to \"Sloane Stephens.\"\nIf the match is canceled before play begins, or a result has not been determined by November 3, 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":["Ashley Lahey","Sloane Stephens"],"outcome_prices":[0.0005,0.9995],"probability":0.0005,"spread":0.001,"active":true,"closed":false,"start_date":"2026-10-20T02:44:12Z","end_date":"2026-10-27T18:00:00Z","closed_time":null,"result":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":2026.439,"categories":["Sports"],"countries":[],"updated_at":"2026-10-20T22:26:47.026703Z","fetched_at":"2026-10-20T22:26:47.026703Z","added_at":"2026-10-20T02:50:32.227155Z","url":"https://polymarket.com/event/itf-stephe2-lahey1-2026-10-20/itf-stephe2-lahey1-2026-10-20-set-handicap-away-1pt5","event_title":"W50 Austin: Sloane Stephens vs Ashley Lahey","chart_24h":[0.49,0.495,0.495,0.5,0.005,0.0895,0.0005]}]}