{"_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/1359167","as_of":"2026-11-11T16:09:37.876270Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"M25 San Gregorio di Catania: Matteo Gribaldo vs Federico Iannaccone\" — 10% as of 2026-11-11 UTC. https://pdata.world/events/polymarket/1359167","source_url":"https://polymarket.com/event/itf-gribal1-iannac1-2026-11-11"},"source":"polymarket","id":"1359167","ticker":"itf-gribal1-iannac1-2026-11-11","slug":"itf-gribal1-iannac1-2026-11-11","title":"M25 San Gregorio di Catania: Matteo Gribaldo vs Federico Iannaccone","description":"This market refers to the tennis match between Matteo Gribaldo and Federico Iannaccone in the M25 San Gregorio di Catania, Main Draw, originally scheduled for November 11, 2026 at 7:00AM ET.\n\nThis market will resolve to 'Matteo Gribaldo' if Matteo Gribaldo advances against Federico Iannaccone.\n\nThis market will resolve to 'Federico Iannaccone' if Federico Iannaccone advances against Matteo Gribaldo.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 25, 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":true,"closed":false,"start_date":"2026-11-10T21:03:15Z","end_date":"2026-11-18T12:00:00Z","closed_time":null,"volume":3329.4662729999995,"volume_24hr":3331.765119,"volume_24h_change":null,"normalized_vol_24hr":27.234703063964844,"normalized_volume":14.918649673461914,"liquidity":30656.6986,"open_interest":4355.065119,"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":0.105,"top_outcome_prob_24h_change":-0.185,"top_outcome_volume_24h_change":3277.222377,"updated_at":"2026-11-11T16:04:47.033970Z","fetched_at":"2026-11-11T16:04:47.033970Z","added_at":"2026-11-10T21:22:26.203864Z","url":"https://polymarket.com/event/itf-gribal1-iannac1-2026-11-11","chart_24h":[54.542742000000004,54.542742000000004,54.542742000000004,54.542742000000004,54.542742000000004,54.542742000000004,54.542742000000004,57.174321000000006,57.174321000000006,57.174321,57.174321000000006,57.174321000000006,57.174321000000006,57.174321000000006,57.174321000000006,57.174321000000006,57.174321000000006,57.174321000000006,57.174321000000006,62.87432100000001,3251.237049,3256.877049,3256.877049,3331.765119],"kind":"live","mutually_exclusive":false,"markets_total":1,"markets":[{"source":"polymarket","id":"6945097","event_id":"1359167","slug":"itf-gribal1-iannac1-2026-11-11","question":"M25 San Gregorio di Catania: Matteo Gribaldo vs Federico Iannaccone","group_item_title":null,"description":"This market refers to the tennis match between Matteo Gribaldo and Federico Iannaccone in the M25 San Gregorio di Catania, Main Draw, originally scheduled for November 11, 2026 at 7:00AM ET.\n\nThis market will resolve to 'Matteo Gribaldo' if Matteo Gribaldo advances against Federico Iannaccone.\n\nThis market will resolve to 'Federico Iannaccone' if Federico Iannaccone advances against Matteo Gribaldo.\n\nIf the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 25, 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). 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