{"_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/1191749","as_of":"2026-10-15T19:15:14.974947Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"W50 Quebec City: Madison Sieg vs Ariana Arseneault\" — closed 2026-10-15; final leader \"W50 Quebec City: Madison Sieg vs Ariana Arseneault Set Handicap +/-1.5\" at 100%. https://pdata.world/events/polymarket/1191749","source_url":"https://polymarket.com/event/itf-sieg1-arsene1-2026-10-15"},"source":"polymarket","id":"1191749","ticker":"itf-sieg1-arsene1-2026-10-15","slug":"itf-sieg1-arsene1-2026-10-15","title":"W50 Quebec City: Madison Sieg vs Ariana Arseneault","description":"This market refers to the tennis match between Madison Sieg and Ariana Arseneault in the W50 Quebec City, Main Draw, originally scheduled for October 15, 2026 at 11:00AM ET.\n\nThis market will resolve to 'Madison Sieg' if Madison Sieg advances against Ariana Arseneault.\n\nThis market will resolve to 'Ariana Arseneault' if Ariana Arseneault advances against Madison Sieg.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 29, 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":"2026-10-15T02:14:13Z","end_date":"2026-10-22T15:00:00Z","closed_time":"2026-10-15T19:03:11Z","volume":32319.980671,"volume_24hr":32319.980671,"volume_24h_change":null,"normalized_vol_24hr":41.02644729614258,"normalized_volume":24.49217987060547,"liquidity":0.0,"open_interest":21070.159784,"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":"W50 Quebec City: Madison Sieg vs Ariana Arseneault Set Handicap +/-1.5","top_outcome_probability":1.0,"top_outcome_prob_24h_change":0.5,"top_outcome_volume_24h_change":0.0,"updated_at":"2026-10-15T19:09:18.294251Z","fetched_at":"2026-10-15T19:09:18.294251Z","added_at":"2026-10-15T02:25:57.885405Z","url":"https://polymarket.com/event/itf-sieg1-arsene1-2026-10-15","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,169.929066,184.429066,184.429066,184.429066,194.429066,194.429066,194.429066,194.429066,194.429066,257.452974,7309.840494000001,23784.521353,32319.980671,32319.980671],"kind":"live","mutually_exclusive":false,"markets_total":3,"markets":[{"source":"polymarket","id":"5718915","event_id":"1191749","slug":"itf-sieg1-arsene1-2026-10-15","question":"W50 Quebec City: Madison Sieg vs Ariana Arseneault","group_item_title":null,"description":"This market refers to the tennis match between Madison Sieg and Ariana Arseneault in the W50 Quebec City, Main Draw, originally scheduled for October 15, 2026 at 11:00AM ET.\n\nThis market will resolve to 'Madison Sieg' if Madison Sieg advances against Ariana Arseneault.\n\nThis market will resolve to 'Ariana Arseneault' if Ariana Arseneault advances against Madison Sieg.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 29, 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":["Madison Sieg","Ariana Arseneault"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-10-15T02:14:13Z","end_date":"2026-10-22T15:00:00Z","closed_time":"2026-10-15T19:03:11Z","result":"Ariana Arseneault","volume":32370.820671,"volume_24hr":32370.820671,"prob_24h_change":-0.44,"volume_24h_change":32370.820671,"normalized_vol_24hr":41.58382797241211,"normalized_volume":31.642066955566406,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-10-15T19:09:18.389294Z","fetched_at":"2026-10-15T19:09:18.389294Z","added_at":"2026-10-15T02:25:57.905099Z","url":"https://polymarket.com/event/itf-sieg1-arsene1-2026-10-15/itf-sieg1-arsene1-2026-10-15","event_title":"W50 Quebec City: Madison Sieg vs Ariana Arseneault","chart_24h":[0.44,0.435,0.425,0.42,0.415,0.44,0.445,0.425,0.42,0.425,0.43,0.365,0.175,0.0005]},{"source":"polymarket","id":"5719057","event_id":"1191749","slug":"itf-sieg1-arsene1-2026-10-15-set-handicap-away-1pt5","question":"Set Handicap: Ariana Arseneault (-1.5) vs Madison Sieg (+1.5)","group_item_title":"W50 Quebec City: Madison Sieg vs Ariana Arseneault Set Handicap +/-1.5","description":"This market refers to the tennis match between Ariana Arseneault and Madison Sieg in the W50 Quebec City, originally scheduled for October 15, 2026 at 11:00AM ET.\nThis market will resolve to \"Ariana Arseneault\" if Ariana Arseneault wins by 2 or more sets than Madison Sieg, based on the final completed score. Otherwise, it will resolve to \"Madison Sieg.\"\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, Ariana Arseneault can no longer win by 2 or more sets, and this market will resolve to \"Madison Sieg.\"\nIf the match is canceled before play begins, or a result has not been determined by October 29, 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":["Ariana Arseneault","Madison Sieg"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-10-15T02:44:10Z","end_date":"2026-10-22T15:00:00Z","closed_time":"2026-10-15T19:03:11Z","result":"Ariana Arseneault","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":"2026-10-15T19:09:18.389294Z","fetched_at":"2026-10-15T19:09:18.389294Z","added_at":"2026-10-15T02:49:51.203974Z","url":"https://polymarket.com/event/itf-sieg1-arsene1-2026-10-15/itf-sieg1-arsene1-2026-10-15-set-handicap-away-1pt5","event_title":"W50 Quebec City: Madison Sieg vs Ariana Arseneault","chart_24h":[0.5,0.5,0.38,0.43,0.41,0.415,0.425,0.435,0.43,0.425,0.495,0.5,0.9955]},{"source":"polymarket","id":"5719051","event_id":"1191749","slug":"itf-sieg1-arsene1-2026-10-15-set-handicap-home-1pt5","question":"Set Handicap: Madison Sieg (-1.5) vs Ariana Arseneault (+1.5)","group_item_title":"W50 Quebec City: Madison Sieg vs Ariana Arseneault Set Handicap +/-1.5","description":"This market refers to the tennis match between Madison Sieg and Ariana Arseneault in the W50 Quebec City, originally scheduled for October 15, 2026 at 11:00AM ET.\nThis market will resolve to \"Madison Sieg\" if Madison Sieg wins by 2 or more sets than Ariana Arseneault, based on the final completed score. Otherwise, it will resolve to \"Ariana Arseneault.\"\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, Madison Sieg can no longer win by 2 or more sets, and this market will resolve to \"Ariana Arseneault.\"\nIf the match is canceled before play begins, or a result has not been determined by October 29, 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":["Madison Sieg","Ariana Arseneault"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.009,"active":false,"closed":true,"start_date":"2026-10-15T02:44:13Z","end_date":"2026-10-22T15:00:00Z","closed_time":"2026-10-15T17:58:58Z","result":"Ariana Arseneault","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":"2026-10-15T18:16:32.565515Z","fetched_at":"2026-10-15T18:16:32.565515Z","added_at":"2026-10-15T02:49:51.203974Z","url":"https://polymarket.com/event/itf-sieg1-arsene1-2026-10-15/itf-sieg1-arsene1-2026-10-15-set-handicap-home-1pt5","event_title":"W50 Quebec City: Madison Sieg vs Ariana Arseneault","chart_24h":[0.5,0.5,0.27,0.265,0.415,0.29,0.3,0.305,0.315,0.31,0.305,0.3,0.495,0.005,0.0045,0.0]}]}