{"_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/1222629","as_of":"2026-10-21T10:46:39.954937Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"M15 Tanagura: Shotaro Yamamoto vs Koyu Yanagi\" — closed 2026-10-21; final leader \"\" at 100%. https://pdata.world/events/polymarket/1222629","source_url":"https://polymarket.com/event/itf-yamamo2-yanagi1-2026-10-21"},"source":"polymarket","id":"1222629","ticker":"itf-yamamo2-yanagi1-2026-10-21","slug":"itf-yamamo2-yanagi1-2026-10-21","title":"M15 Tanagura: Shotaro Yamamoto vs Koyu Yanagi","description":"This market refers to the tennis match between Shotaro Yamamoto and Koyu Yanagi in the M15 Tanagura, Main Draw, originally scheduled for October 20, 2026 at 11:00PM ET.\n\nThis market will resolve to 'Shotaro Yamamoto' if Shotaro Yamamoto advances against Koyu Yanagi.\n\nThis market will resolve to 'Koyu Yanagi' if Koyu Yanagi advances against Shotaro Yamamoto.\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":false,"closed":true,"start_date":"2026-10-20T07:59:16Z","end_date":"2026-10-28T03:00:00Z","closed_time":"2026-10-21T09:40:59Z","volume":10391.78168,"volume_24hr":10391.781679999998,"volume_24h_change":null,"normalized_vol_24hr":33.2669792175293,"normalized_volume":19.429109573364258,"liquidity":null,"open_interest":4748.30168,"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":0.755,"top_outcome_volume_24h_change":10391.781679999998,"updated_at":"2026-10-21T10:27:19.215666Z","fetched_at":"2026-10-21T10:27:19.215666Z","added_at":"2026-10-20T08:19:57.228499Z","url":"https://polymarket.com/event/itf-yamamo2-yanagi1-2026-10-21","chart_24h":[0.0,24.367646,29.35226,29.35226,29.35226,29.35226,29.35226,29.35226,39.336635,90.82101,90.82101,90.82101,90.82101,90.82101,90.82101,90.82101,90.82101,90.82101,90.82101,90.82101,90.82101,90.82101,90.82101,90.82101,90.82101,90.82101,90.82101,100.877182,5937.18168,5961.301680000001,10391.781679999998,10391.781679999998,10391.781679999998],"kind":"live","mutually_exclusive":false,"markets_total":3,"markets":[{"source":"polymarket","id":"5965268","event_id":"1222629","slug":"itf-yamamo2-yanagi1-2026-10-21","question":"M15 Tanagura: Shotaro Yamamoto vs Koyu Yanagi","group_item_title":null,"description":"This market refers to the tennis match between Shotaro Yamamoto and Koyu Yanagi in the M15 Tanagura, Main Draw, originally scheduled for October 20, 2026 at 11:00PM ET.\n\nThis market will resolve to 'Shotaro Yamamoto' if Shotaro Yamamoto advances against Koyu Yanagi.\n\nThis market will resolve to 'Koyu Yanagi' if Koyu Yanagi advances against Shotaro Yamamoto.\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":["Shotaro Yamamoto","Koyu Yanagi"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-10-20T07:59:16Z","end_date":"2026-10-28T03:00:00Z","closed_time":"2026-10-21T09:41:02.084464Z","result":"Shotaro Yamamoto","volume":10391.78168,"volume_24hr":10391.781679999998,"prob_24h_change":0.755,"volume_24h_change":10391.781679999998,"normalized_vol_24hr":34.62736511230469,"normalized_volume":25.097198486328125,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-10-21T09:44:01.224741Z","fetched_at":"2026-10-21T09:44:01.224741Z","added_at":"2026-10-20T08:19:57.294315Z","url":"https://polymarket.com/event/itf-yamamo2-yanagi1-2026-10-21/itf-yamamo2-yanagi1-2026-10-21","event_title":"M15 Tanagura: Shotaro Yamamoto vs Koyu Yanagi","chart_24h":[0.245,0.245,0.25,0.245,0.345,0.34,0.34,0.245,0.41,0.415,0.41,0.415,0.415,0.405,0.415,0.41,0.41,0.405,0.405,0.42,0.41,0.67,0.925,0.585,0.9995,0.9995,1.0]},{"source":"polymarket","id":"5965857","event_id":"1222629","slug":"itf-yamamo2-yanagi1-2026-10-21-set-handicap-home-1pt5","question":"Set Handicap: Shotaro Yamamoto (-1.5) vs Koyu Yanagi (+1.5)","group_item_title":"M15 Tanagura: Shotaro Yamamoto vs Koyu Yanagi Set Handicap +/-1.5","description":"This market refers to the tennis match between Shotaro Yamamoto and Koyu Yanagi in the M15 Tanagura, originally scheduled for October 20, 2026 at 11:00PM ET.\nThis market will resolve to \"Shotaro Yamamoto\" if Shotaro Yamamoto wins by 2 or more sets than Koyu Yanagi, based on the final completed score. Otherwise, it will resolve to \"Koyu Yanagi.\"\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, Shotaro Yamamoto can no longer win by 2 or more sets, and this market will resolve to \"Koyu Yanagi.\"\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":["Shotaro Yamamoto","Koyu Yanagi"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-10-20T08:44:14Z","end_date":"2026-10-28T03:00:00Z","closed_time":"2026-10-21T08:55:02.033200Z","result":"Koyu Yanagi","volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.495,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-10-21T08:58:50.742473Z","fetched_at":"2026-10-21T08:58:50.742473Z","added_at":"2026-10-20T09:04:09.893848Z","url":"https://polymarket.com/event/itf-yamamo2-yanagi1-2026-10-21/itf-yamamo2-yanagi1-2026-10-21-set-handicap-home-1pt5","event_title":"M15 Tanagura: Shotaro Yamamoto vs Koyu Yanagi","chart_24h":[0.495,0.5,0.0005,0.0]},{"source":"polymarket","id":"5965861","event_id":"1222629","slug":"itf-yamamo2-yanagi1-2026-10-21-set-handicap-away-1pt5","question":"Set Handicap: Koyu Yanagi (-1.5) vs Shotaro Yamamoto (+1.5)","group_item_title":"M15 Tanagura: Shotaro Yamamoto vs Koyu Yanagi Set Handicap +/-1.5","description":"This market refers to the tennis match between Koyu Yanagi and Shotaro Yamamoto in the M15 Tanagura, originally scheduled for October 20, 2026 at 11:00PM ET.\nThis market will resolve to \"Koyu Yanagi\" if Koyu Yanagi wins by 2 or more sets than Shotaro Yamamoto, based on the final completed score. Otherwise, it will resolve to \"Shotaro Yamamoto.\"\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, Koyu Yanagi can no longer win by 2 or more sets, and this market will resolve to \"Shotaro Yamamoto.\"\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":["Koyu Yanagi","Shotaro Yamamoto"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-10-20T08:44:14Z","end_date":"2026-10-28T03:00:00Z","closed_time":"2026-10-21T08:08:01.926642Z","result":"Shotaro Yamamoto","volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.495,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-10-21T08:36:08.773026Z","fetched_at":"2026-10-21T08:36:08.773026Z","added_at":"2026-10-20T09:04:09.893848Z","url":"https://polymarket.com/event/itf-yamamo2-yanagi1-2026-10-21/itf-yamamo2-yanagi1-2026-10-21-set-handicap-away-1pt5","event_title":"M15 Tanagura: Shotaro Yamamoto vs Koyu Yanagi","chart_24h":[0.495,0.5,0.0005,0.0]}]}