{"_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/kalshi/KXATPCHALLENGERMATCH-26OCT18VANANT","as_of":"2026-10-18T23:04:00.642161Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Vandecasteele vs Antonius\" — resolved: \"Michael Antonius\" (closed 2026-10-18). https://pdata.world/events/kalshi/KXATPCHALLENGERMATCH-26OCT18VANANT","source_url":"https://kalshi.com/markets/kxatpchallengermatch/vandecasteele-vs-antonius/kxatpchallengermatch-26oct18vanant"},"source":"kalshi","id":"KXATPCHALLENGERMATCH-26OCT18VANANT","ticker":"KXATPCHALLENGERMATCH-26OCT18VANANT","slug":"KXATPCHALLENGERMATCH-26OCT18VANANT","title":"Vandecasteele vs Antonius","description":null,"image":null,"icon":null,"active":false,"closed":true,"start_date":"2026-10-18T06:30:00Z","end_date":"2026-11-01T18:20:00Z","closed_time":"2026-10-18T22:30:13Z","volume":906528.49,"volume_24hr":669983.44,"volume_24h_change":null,"normalized_vol_24hr":56.533687591552734,"normalized_volume":50.5076789855957,"liquidity":null,"open_interest":394188.57,"categories":["Sports"],"tags":[],"synthetic":false,"is_group":false,"group_key":"26OCT18VANANT","parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Michael Antonius","top_outcome_probability":0.99,"top_outcome_prob_24h_change":0.99,"top_outcome_volume_24h_change":378372.29,"updated_at":"2026-10-18T22:31:48.092871Z","fetched_at":"2026-10-18T22:31:48.092871Z","added_at":"2026-10-18T06:34:24.954819Z","url":"https://kalshi.com/markets/kxatpchallengermatch/vandecasteele-vs-antonius/kxatpchallengermatch-26oct18vanant","chart_24h":[0.0,0.0,52.29,78.24,211.56,1606.42,9682.48,17853.22,114034.68,389158.97,669983.44],"kind":"live","mutually_exclusive":true,"markets_total":2,"markets":[{"source":"kalshi","id":"KXATPCHALLENGERMATCH-26OCT18VANANT-ANT","event_id":"KXATPCHALLENGERMATCH-26OCT18VANANT","slug":"KXATPCHALLENGERMATCH-26OCT18VANANT-ANT","question":"Michael Antonius wins","group_item_title":"Michael Antonius","description":"If Michael Antonius wins the Vandecasteele vs Antonius professional tennis match in the 2026 ATP Challenger Fort Worth Qualification Round 1 after a ball has been played, then the market resolves to Yes.\n\n---\n\nThe following market refers to the Vandecasteele vs Antonius professional tennis match in the 2026 ATP Challenger Fort Worth Qualification Round 1 after a ball has been played. If the match does not occur (signaled by a ball being played) due to a player injury, walkover, forfeiture, or any other cancellation (all before the match starts), the market will resolve to a fair price in accordance with the rules. If this match is postponed or delayed, the market will remain open and close after the rescheduled match has finished (within two weeks).\n\nKalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.99,0.010000000000000009],"probability":0.99,"spread":1.0,"active":false,"closed":true,"start_date":"2026-10-18T06:30:00Z","end_date":"2026-11-01T18:20:00Z","closed_time":"2026-10-18T22:30:13Z","result":"yes","volume":513687.54,"volume_24hr":378372.29,"prob_24h_change":0.99,"volume_24h_change":378372.29,"normalized_vol_24hr":58.105655670166016,"normalized_volume":53.82566833496094,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-10-18T22:31:48.176400Z","fetched_at":"2026-10-18T22:31:48.176400Z","added_at":"2026-10-18T06:34:25.086731Z","url":"https://kalshi.com/markets/kxatpchallengermatch/vandecasteele-vs-antonius/kxatpchallengermatch-26oct18vanant","event_title":"Vandecasteele vs Antonius","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.52,0.51,0.52,0.52,0.53,0.22,0.48,0.91,0.99]},{"source":"kalshi","id":"KXATPCHALLENGERMATCH-26OCT18VANANT-VAN","event_id":"KXATPCHALLENGERMATCH-26OCT18VANANT","slug":"KXATPCHALLENGERMATCH-26OCT18VANANT-VAN","question":"Quinn Vandecasteele wins","group_item_title":"Quinn Vandecasteele","description":"If Quinn Vandecasteele wins the Vandecasteele vs Antonius professional tennis match in the 2026 ATP Challenger Fort Worth Qualification Round 1 after a ball has been played, then the market resolves to Yes.\n\n---\n\nThe following market refers to the Vandecasteele vs Antonius professional tennis match in the 2026 ATP Challenger Fort Worth Qualification Round 1 after a ball has been played. If the match does not occur (signaled by a ball being played) due to a player injury, walkover, forfeiture, or any other cancellation (all before the match starts), the market will resolve to a fair price in accordance with the rules. If this match is postponed or delayed, the market will remain open and close after the rescheduled match has finished (within two weeks).\n\nKalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.03,0.97],"probability":0.03,"spread":1.0,"active":false,"closed":true,"start_date":"2026-10-18T06:30:00Z","end_date":"2026-11-01T18:20:00Z","closed_time":"2026-10-18T22:30:13Z","result":"no","volume":392840.95,"volume_24hr":291611.15,"prob_24h_change":0.03,"volume_24h_change":291611.15,"normalized_vol_24hr":55.77289581298828,"normalized_volume":51.65228271484375,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-10-18T22:31:48.176400Z","fetched_at":"2026-10-18T22:31:48.176400Z","added_at":"2026-10-18T06:34:25.086731Z","url":"https://kalshi.com/markets/kxatpchallengermatch/vandecasteele-vs-antonius/kxatpchallengermatch-26oct18vanant","event_title":"Vandecasteele vs Antonius","chart_24h":[0.0,0.0,0.0,0.0,0.5,0.49,0.5,0.5,0.5,0.49,0.79,0.52,0.08,0.03]}]}