{"_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/1303629","as_of":"2026-11-03T22:45:46.706531Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"W50 Heraklion: Valentini Grammatikopoulou vs Natalija Senic\" — closed 2026-11-03; final leader \"\" at 100%. https://pdata.world/events/polymarket/1303629","source_url":"https://polymarket.com/event/itf-gramma1-senic1-2026-11-03"},"source":"polymarket","id":"1303629","ticker":"itf-gramma1-senic1-2026-11-03","slug":"itf-gramma1-senic1-2026-11-03","title":"W50 Heraklion: Valentini Grammatikopoulou vs Natalija Senic","description":"This market refers to the tennis match between Valentini Grammatikopoulou and Natalija Senic in the W50 Heraklion, Main Draw, originally scheduled for November 3, 2026 at 6:00AM ET.\n\nThis market will resolve to 'Valentini Grammatikopoulou' if Valentini Grammatikopoulou advances against Natalija Senic.\n\nThis market will resolve to 'Natalija Senic' if Natalija Senic advances against Valentini Grammatikopoulou.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 17, 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":"2026-11-02T21:14:19Z","end_date":"2026-11-10T11:00:00Z","closed_time":"2026-11-03T19:43:19Z","volume":5040.313580999999,"volume_24hr":5040.313581,"volume_24h_change":null,"normalized_vol_24hr":24.7536563873291,"normalized_volume":16.49817657470703,"liquidity":null,"open_interest":4483.403581,"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":0.4,"top_outcome_volume_24h_change":5040.313581,"updated_at":"2026-11-03T20:04:46.545430Z","fetched_at":"2026-11-03T20:04:46.545430Z","added_at":"2026-11-02T21:28:56.257754Z","url":"https://polymarket.com/event/itf-gramma1-senic1-2026-11-03","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,15.0,65.0,65.0,535.39126,5035.313581,5035.313581,5040.313581],"kind":"live","mutually_exclusive":false,"markets_total":3,"markets":[{"source":"polymarket","id":"6598861","event_id":"1303629","slug":"itf-gramma1-senic1-2026-11-03","question":"W50 Heraklion: Valentini Grammatikopoulou vs Natalija Senic","group_item_title":null,"description":"This market refers to the tennis match between Valentini Grammatikopoulou and Natalija Senic in the W50 Heraklion, Main Draw, originally scheduled for November 3, 2026 at 6:00AM ET.\n\nThis market will resolve to 'Valentini Grammatikopoulou' if Valentini Grammatikopoulou advances against Natalija Senic.\n\nThis market will resolve to 'Natalija Senic' if Natalija Senic advances against Valentini Grammatikopoulou.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 17, 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":["Valentini Grammatikopoulou","Natalija Senic"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.039,"active":false,"closed":true,"start_date":"2026-11-02T21:14:19Z","end_date":"2026-11-10T11:00:00Z","closed_time":"2026-11-03T19:43:22.486607Z","result":"Valentini Grammatikopoulou","volume":5040.313580999999,"volume_24hr":5040.313581,"prob_24h_change":0.4,"volume_24h_change":5040.313581,"normalized_vol_24hr":31.16013526916504,"normalized_volume":21.324554443359375,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-11-03T20:04:46.653487Z","fetched_at":"2026-11-03T20:04:46.653487Z","added_at":"2026-11-02T21:28:56.338870Z","url":"https://polymarket.com/event/itf-gramma1-senic1-2026-11-03/itf-gramma1-senic1-2026-11-03","event_title":"W50 Heraklion: Valentini Grammatikopoulou vs Natalija Senic","chart_24h":[0.6,0.605,0.6,0.605,0.6,0.605,0.61,0.61,0.61,0.465,0.585,0.58,0.61,0.9685,0.7965,0.803,0.954,0.98,0.98,1.0]},{"source":"polymarket","id":"6599151","event_id":"1303629","slug":"itf-gramma1-senic1-2026-11-03-set-handicap-home-1pt5","question":"Set Handicap: Valentini Grammatikopoulou (-1.5) vs Natalija Senic (+1.5)","group_item_title":"W50 Heraklion: Valentini Grammatikopoulou vs Natalija Senic Set Handicap +/-1.5","description":"This market refers to the tennis match between Valentini Grammatikopoulou and Natalija Senic in the W50 Heraklion, originally scheduled for November 3, 2026 at 6:00AM ET.\nThis market will resolve to \"Valentini Grammatikopoulou\" if Valentini Grammatikopoulou wins by 2 or more sets than Natalija Senic, based on the final completed score. Otherwise, it will resolve to \"Natalija Senic.\"\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, Valentini Grammatikopoulou can no longer win by 2 or more sets, and this market will resolve to \"Natalija Senic.\"\nIf the match is canceled before play begins, or a result has not been determined by November 17, 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":["Valentini Grammatikopoulou","Natalija Senic"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.19,"active":false,"closed":true,"start_date":"2026-11-02T21:44:14Z","end_date":"2026-11-10T11:00:00Z","closed_time":"2026-11-03T19:10:06.296409Z","result":"Natalija Senic","volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.51,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-11-03T19:12:52.136054Z","fetched_at":"2026-11-03T19:12:52.136054Z","added_at":"2026-11-02T21:54:04.177482Z","url":"https://polymarket.com/event/itf-gramma1-senic1-2026-11-03/itf-gramma1-senic1-2026-11-03-set-handicap-home-1pt5","event_title":"W50 Heraklion: Valentini Grammatikopoulou vs Natalija Senic","chart_24h":[0.51,0.5,0.5,0.495,0.495,0.5,0.095,0.0]},{"source":"polymarket","id":"6599155","event_id":"1303629","slug":"itf-gramma1-senic1-2026-11-03-set-handicap-away-1pt5","question":"Set Handicap: Natalija Senic (-1.5) vs Valentini Grammatikopoulou (+1.5)","group_item_title":"W50 Heraklion: Valentini Grammatikopoulou vs Natalija Senic Set Handicap +/-1.5","description":"This market refers to the tennis match between Natalija Senic and Valentini Grammatikopoulou in the W50 Heraklion, originally scheduled for November 3, 2026 at 6:00AM ET.\nThis market will resolve to \"Natalija Senic\" if Natalija Senic wins by 2 or more sets than Valentini Grammatikopoulou, based on the final completed score. Otherwise, it will resolve to \"Valentini Grammatikopoulou.\"\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, Natalija Senic can no longer win by 2 or more sets, and this market will resolve to \"Valentini Grammatikopoulou.\"\nIf the match is canceled before play begins, or a result has not been determined by November 17, 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":["Natalija Senic","Valentini Grammatikopoulou"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.001,"active":false,"closed":true,"start_date":"2026-11-02T21:44:14Z","end_date":"2026-11-10T11:00:00Z","closed_time":"2026-11-03T16:27:50.311104Z","result":"Valentini Grammatikopoulou","volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.51,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-11-03T16:43:35.236612Z","fetched_at":"2026-11-03T16:43:35.236612Z","added_at":"2026-11-02T21:54:04.177482Z","url":"https://polymarket.com/event/itf-gramma1-senic1-2026-11-03/itf-gramma1-senic1-2026-11-03-set-handicap-away-1pt5","event_title":"W50 Heraklion: Valentini Grammatikopoulou vs Natalija Senic","chart_24h":[0.51,0.5,0.51,0.5,0.495,0.495,0.5,0.0045,0.0375,0.0]}]}