{"_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/predict/656921","as_of":"2026-10-24T12:13:37.223013Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Predict): \"Japan Women's Open: Katie Boulter vs Katerina Siniakova\" — resolved siniako (closed 2026-10-24). https://pdata.world/events/predict/656921","source_url":"https://predict.fun/market/wta-boulter-siniako-2026-10-24"},"source":"predict","id":"656921","ticker":"656921","slug":"wta-boulter-siniako-2026-10-24","title":"Japan Women's Open: Katie Boulter vs Katerina Siniakova","description":"This market refers to the tennis match between Katie Boulter and Katerina Siniakova in the Japan Women's Open, originally scheduled for October 24, 2026 at 12:30AM ET.\n\nThis market will resolve to 'Katie Boulter' if Katie Boulter advances against Katerina Siniakova.\n\nThis market will resolve to 'Katerina Siniakova' if Katerina Siniakova advances against Katie Boulter.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 7, 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 WTA Tour. A consensus of credible reporting may also be used.","image":"https://static.predict.fun/tennis","icon":null,"active":false,"closed":true,"start_date":"2026-10-24T04:30:00Z","end_date":"2026-10-24T08:30:00Z","closed_time":"2026-10-24T10:47:57.617157Z","volume":19509.65,"volume_24hr":19509.65,"volume_24h_change":null,"normalized_vol_24hr":48.4393424987793,"normalized_volume":32.327754974365234,"liquidity":null,"open_interest":null,"categories":["Sports"],"tags":["Sports","Tennis"],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Japan Women's Open: Katie Boulter vs Katerina Siniakova","top_outcome_probability":0.0,"top_outcome_prob_24h_change":-0.63,"top_outcome_volume_24h_change":19509.65,"updated_at":"2026-10-24T12:04:58.594172Z","fetched_at":"2026-10-24T10:47:55.277514Z","added_at":"2026-10-23T11:07:15.348247Z","url":"https://predict.fun/market/wta-boulter-siniako-2026-10-24","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,8274.34,19509.65],"kind":"live","mutually_exclusive":false,"markets_total":1,"markets":[{"source":"predict","id":"3702498","event_id":"656921","slug":"wta-boulter-siniako-2026-10-24","question":"Japan Women's Open: Katie Boulter vs Katerina Siniakova","group_item_title":"Japan Women's Open: Katie Boulter vs Katerina Siniakova","description":"This market refers to the tennis match between Katie Boulter and Katerina Siniakova in the Japan Women's Open, originally scheduled for October 24, 2026 at 12:30AM ET.\n\nThis market will resolve to 'Katie Boulter' if Katie Boulter advances against Katerina Siniakova.\n\nThis market will resolve to 'Katerina Siniakova' if Katerina Siniakova advances against Katie Boulter.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 7, 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 WTA Tour. A consensus of credible reporting may also be used.","image":"https://static.predict.fun/tennis","icon":null,"outcomes":["BOULTER","SINIAKO"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.01,"active":false,"closed":true,"start_date":"2026-10-23T10:16:09.257000Z","end_date":"2026-10-24T08:30:00Z","closed_time":"2026-10-24T10:47:57.837495Z","result":"siniako","volume":19509.65,"volume_24hr":19509.65,"prob_24h_change":-0.63,"volume_24h_change":19509.65,"normalized_vol_24hr":48.454463958740234,"normalized_volume":32.327754974365234,"liquidity":3410.48,"categories":["Sports"],"countries":[],"updated_at":"2026-10-24T12:04:51.012699Z","fetched_at":"2026-10-24T10:47:55.352154Z","added_at":"2026-10-23T11:07:15.420927Z","url":"https://predict.fun/market/wta-boulter-siniako-2026-10-24","event_title":"Japan Women's Open: Katie Boulter vs Katerina Siniakova","chart_24h":[0.63,0.425,0.425,0.395,0.395,0.4,0.4,0.395,0.395,0.395,0.395,0.395,0.395,0.405,0.395,0.335,0.035,0.0,0.0]}]}