{"_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/1270861","as_of":"2026-10-29T05:33:17.389241Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"W35 Sydney: Belle Thompson vs Dayeon Back\" — closed 2026-10-29; final leader \"\" at 100%. https://pdata.world/events/polymarket/1270861","source_url":"https://polymarket.com/event/itf-thomps1-back1-2026-10-28"},"source":"polymarket","id":"1270861","ticker":"itf-thomps1-back1-2026-10-28","slug":"itf-thomps1-back1-2026-10-28","title":"W35 Sydney: Belle Thompson vs Dayeon Back","description":"This market refers to the tennis match between Belle Thompson and Dayeon Back in the W35 Sydney, Main Draw, originally scheduled for October 28, 2026 at 7:00PM ET.\n\nThis market will resolve to 'Belle Thompson' if Belle Thompson advances against Dayeon Back.\n\nThis market will resolve to 'Dayeon Back' if Dayeon Back advances against Belle Thompson.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 11, 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":false,"closed":true,"start_date":"2026-10-28T08:14:19Z","end_date":"2026-11-04T23:00:00Z","closed_time":"2026-10-29T03:52:26Z","volume":4087.720039,"volume_24hr":4087.720039,"volume_24h_change":null,"normalized_vol_24hr":24.696308135986328,"normalized_volume":15.704480171203613,"liquidity":null,"open_interest":2052.927839,"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":0.5,"top_outcome_volume_24h_change":4087.720039,"updated_at":"2026-10-29T04:22:43.267016Z","fetched_at":"2026-10-29T04:22:43.267016Z","added_at":"2026-10-28T08:24:11.360483Z","url":"https://polymarket.com/event/itf-thomps1-back1-2026-10-28","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.0,5.0,5.0,13.333334,13.333334,13.333334,13.333334,13.333334,13.333334,13.333334,13.333334,13.333334,1180.0841230000003,1303.55846,2015.4317939999999,3428.660039,4087.720039,4087.720039,4087.720039],"kind":"live","mutually_exclusive":false,"markets_total":3,"markets":[{"source":"polymarket","id":"6336592","event_id":"1270861","slug":"itf-thomps1-back1-2026-10-28","question":"W35 Sydney: Belle Thompson vs Dayeon Back","group_item_title":null,"description":"This market refers to the tennis match between Belle Thompson and Dayeon Back in the W35 Sydney, Main Draw, originally scheduled for October 28, 2026 at 7:00PM ET.\n\nThis market will resolve to 'Belle Thompson' if Belle Thompson advances against Dayeon Back.\n\nThis market will resolve to 'Dayeon Back' if Dayeon Back advances against Belle Thompson.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 11, 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":["Belle Thompson","Dayeon Back"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-10-28T08:14:19Z","end_date":"2026-11-04T23:00:00Z","closed_time":"2026-10-29T03:52:35.558769Z","result":"Belle Thompson","volume":4087.720039,"volume_24hr":4087.720039,"prob_24h_change":0.5,"volume_24h_change":4087.720039,"normalized_vol_24hr":27.77662467956543,"normalized_volume":20.289709091186523,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-10-29T04:22:43.329258Z","fetched_at":"2026-10-29T04:22:43.329258Z","added_at":"2026-10-28T08:24:11.541419Z","url":"https://polymarket.com/event/itf-thomps1-back1-2026-10-28/itf-thomps1-back1-2026-10-28","event_title":"W35 Sydney: Belle Thompson vs Dayeon Back","chart_24h":[0.5,0.26,0.265,0.12,0.13,0.135,0.13,0.11,0.125,0.12,0.11,0.12,0.115,0.12,0.27,0.11,0.295,0.9995,0.9995,0.9995,1.0]},{"source":"polymarket","id":"6337047","event_id":"1270861","slug":"itf-thomps1-back1-2026-10-28-set-handicap-home-1pt5","question":"Set Handicap: Belle Thompson (-1.5) vs Dayeon Back (+1.5)","group_item_title":"W35 Sydney: Belle Thompson vs Dayeon Back Set Handicap +/-1.5","description":"This market refers to the tennis match between Belle Thompson and Dayeon Back in the W35 Sydney, originally scheduled for October 28, 2026 at 7:00PM ET.\nThis market will resolve to \"Belle Thompson\" if Belle Thompson wins by 2 or more sets than Dayeon Back, based on the final completed score. Otherwise, it will resolve to \"Dayeon Back.\"\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, Belle Thompson can no longer win by 2 or more sets, and this market will resolve to \"Dayeon Back.\"\nIf the match is canceled before play begins, or a result has not been determined by November 11, 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":["Belle Thompson","Dayeon Back"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.009,"active":false,"closed":true,"start_date":"2026-10-28T08:44:13Z","end_date":"2026-11-04T23:00:00Z","closed_time":"2026-10-29T02:21:23.891654Z","result":"Dayeon Back","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":"2026-10-29T02:34:43.428980Z","fetched_at":"2026-10-29T02:34:43.428980Z","added_at":"2026-10-28T08:48:43.885256Z","url":"https://polymarket.com/event/itf-thomps1-back1-2026-10-28/itf-thomps1-back1-2026-10-28-set-handicap-home-1pt5","event_title":"W35 Sydney: Belle Thompson vs Dayeon Back","chart_24h":[0.49,0.495,0.505,0.495,0.505,0.505,0.5,0.515,0.495,0.5,0.005,0.0045,0.0]},{"source":"polymarket","id":"6337052","event_id":"1270861","slug":"itf-thomps1-back1-2026-10-28-set-handicap-away-1pt5","question":"Set Handicap: Dayeon Back (-1.5) vs Belle Thompson (+1.5)","group_item_title":"W35 Sydney: Belle Thompson vs Dayeon Back Set Handicap +/-1.5","description":"This market refers to the tennis match between Dayeon Back and Belle Thompson in the W35 Sydney, originally scheduled for October 28, 2026 at 7:00PM ET.\nThis market will resolve to \"Dayeon Back\" if Dayeon Back wins by 2 or more sets than Belle Thompson, based on the final completed score. Otherwise, it will resolve to \"Belle Thompson.\"\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, Dayeon Back can no longer win by 2 or more sets, and this market will resolve to \"Belle Thompson.\"\nIf the match is canceled before play begins, or a result has not been determined by November 11, 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":["Dayeon Back","Belle Thompson"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.009,"active":false,"closed":true,"start_date":"2026-10-28T08:44:13Z","end_date":"2026-11-04T23:00:00Z","closed_time":"2026-10-29T03:09:34.820710Z","result":"Belle Thompson","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":"2026-10-29T03:29:02.335691Z","fetched_at":"2026-10-29T03:29:02.335691Z","added_at":"2026-10-28T08:48:43.885256Z","url":"https://polymarket.com/event/itf-thomps1-back1-2026-10-28/itf-thomps1-back1-2026-10-28-set-handicap-away-1pt5","event_title":"W35 Sydney: Belle Thompson vs Dayeon Back","chart_24h":[0.5,0.495,0.5,0.395,0.405,0.41,0.395,0.395,0.375,0.405,0.415,0.41,0.495,0.5,0.345,0.0045,0.0]}]}