{"_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/KXATPDOUBLES-26OCT31ARROLIFRAHAA","as_of":"2026-10-31T15:21:34.029951Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Arribage / Olivetti vs Frantzen / Haase\" — resolved: \"Theo Arribage / Albano Olivetti\" (closed 2026-10-31). https://pdata.world/events/kalshi/KXATPDOUBLES-26OCT31ARROLIFRAHAA","source_url":"https://kalshi.com/markets/kxatpdoubles/arribage-olivetti-vs-frantzen-haase/kxatpdoubles-26oct31arrolifrahaa"},"source":"kalshi","id":"KXATPDOUBLES-26OCT31ARROLIFRAHAA","ticker":"KXATPDOUBLES-26OCT31ARROLIFRAHAA","slug":"KXATPDOUBLES-26OCT31ARROLIFRAHAA","title":"Arribage / Olivetti vs Frantzen / Haase","description":null,"image":null,"icon":null,"active":false,"closed":true,"start_date":"2026-10-30T12:55:00Z","end_date":"2026-11-14T12:00:00Z","closed_time":"2026-10-31T13:39:48Z","volume":118094.18,"volume_24hr":118094.18,"volume_24h_change":null,"normalized_vol_24hr":45.049434661865234,"normalized_volume":36.450252532958984,"liquidity":null,"open_interest":44968.56,"categories":["Sports"],"tags":[],"synthetic":false,"is_group":false,"group_key":"26OCT31ARROLIFRAHAA","parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Theo Arribage / Albano Olivetti","top_outcome_probability":0.99,"top_outcome_prob_24h_change":0.99,"top_outcome_volume_24h_change":45548.48,"updated_at":"2026-10-31T13:52:59.696999Z","fetched_at":"2026-10-31T13:52:59.696999Z","added_at":"2026-10-30T13:08:43.811190Z","url":"https://kalshi.com/markets/kxatpdoubles/arribage-olivetti-vs-frantzen-haase/kxatpdoubles-26oct31arrolifrahaa","chart_24h":[0.58,17.79,26.7,31.87,39.49,41.0,41.32,42.32,57.53,3546.84,26117.96,85544.15,118094.18],"kind":"live","mutually_exclusive":true,"markets_total":2,"markets":[{"source":"kalshi","id":"KXATPDOUBLES-26OCT31ARROLIFRAHAA-ARROLI","event_id":"KXATPDOUBLES-26OCT31ARROLIFRAHAA","slug":"KXATPDOUBLES-26OCT31ARROLIFRAHAA-ARROLI","question":"Theo Arribage / Albano Olivetti wins","group_item_title":"Theo Arribage / Albano Olivetti","description":"If Theo Arribage / Albano Olivetti wins the Arribage / Olivetti vs Frantzen / Haase professional tennis match in the 2026 ATP Basel Semifinal after a ball has been played, then the market resolves to Yes.\n\n---\n\nThe following market refers to the Arribage / Olivetti vs Frantzen / Haase professional tennis match in the 2026 ATP Basel Semifinal 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":"2026-10-30T12:55:00Z","end_date":"2026-11-14T12:00:00Z","closed_time":"2026-10-31T13:39:48Z","result":"yes","volume":45548.48,"volume_24hr":45548.48,"prob_24h_change":0.99,"volume_24h_change":45548.48,"normalized_vol_24hr":43.89887619018555,"normalized_volume":35.77022171020508,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-10-31T13:52:59.705377Z","fetched_at":"2026-10-31T13:52:59.705377Z","added_at":"2026-10-30T13:08:43.897793Z","url":"https://kalshi.com/markets/kxatpdoubles/arribage-olivetti-vs-frantzen-haase/kxatpdoubles-26oct31arrolifrahaa","event_title":"Arribage / Olivetti vs Frantzen / Haase","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.64,0.61,0.61,0.61,0.64,0.64,0.64,0.65,0.65,0.65,0.58,0.85,0.99,0.99]},{"source":"kalshi","id":"KXATPDOUBLES-26OCT31ARROLIFRAHAA-FRAHAA","event_id":"KXATPDOUBLES-26OCT31ARROLIFRAHAA","slug":"KXATPDOUBLES-26OCT31ARROLIFRAHAA-FRAHAA","question":"Constantin Frantzen / Robin Haase wins","group_item_title":"Constantin Frantzen / Robin Haase","description":"If Constantin Frantzen / Robin Haase wins the Arribage / Olivetti vs Frantzen / Haase professional tennis match in the 2026 ATP Basel Semifinal after a ball has been played, then the market resolves to Yes.\n\n---\n\nThe following market refers to the Arribage / Olivetti vs Frantzen / Haase professional tennis match in the 2026 ATP Basel Semifinal 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":[0.01,0.99],"probability":0.01,"spread":1.0,"active":false,"closed":true,"start_date":"2026-10-30T12:55:00Z","end_date":"2026-11-14T12:00:00Z","closed_time":"2026-10-31T13:39:48Z","result":"no","volume":72545.7,"volume_24hr":72545.7,"prob_24h_change":0.01,"volume_24h_change":72545.7,"normalized_vol_24hr":47.79112243652344,"normalized_volume":38.941749572753906,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-10-31T13:52:59.705377Z","fetched_at":"2026-10-31T13:52:59.705377Z","added_at":"2026-10-30T13:08:43.897793Z","url":"https://kalshi.com/markets/kxatpdoubles/arribage-olivetti-vs-frantzen-haase/kxatpdoubles-26oct31arrolifrahaa","event_title":"Arribage / Olivetti vs Frantzen / Haase","chart_24h":[0.0,0.0,0.0,0.41,0.41,0.39,0.39,0.39,0.39,0.37,0.37,0.37,0.37,0.41,0.16,0.01,0.01]}]}