{"source":"kalshi","id":"KXATPDOUBLES-26SEP09HELPATANDGUI","ticker":"KXATPDOUBLES-26SEP09HELPATANDGUI","slug":"KXATPDOUBLES-26SEP09HELPATANDGUI","title":"Heliovaara / Patten vs Andreozzi / Guinard","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-09-09T01:05:00Z","end_date":"2026-09-23T15:00:00Z","closed_time":null,"volume":1171.03,"volume_24hr":1171.03,"volume_24h_change":null,"normalized_vol_24hr":16.314651489257812,"normalized_volume":13.574588775634766,"liquidity":null,"open_interest":1171.03,"categories":["Sports"],"tags":[],"synthetic":false,"is_group":false,"group_key":"26SEP09HELPATANDGUI","parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Harri Heliovaara / Henry Patten","top_outcome_probability":0.67,"top_outcome_prob_24h_change":0.67,"top_outcome_volume_24h_change":1062.71,"updated_at":"2026-09-09T21:02:48.443357Z","fetched_at":"2026-09-09T21:02:48.443357Z","added_at":"2026-09-09T01:06:53.529897Z","url":"https://kalshi.com/markets/kxatpdoubles/heliovaara-patten-vs-andreozzi-guinard/kxatpdoubles-26sep09helpatandgui","chart_24h":[0.0,12.98,21.98,32.61,32.61,35.61,110.61,230.61,583.8,583.8,589.8,617.38,633.42,689.97,690.97,720.14,1045.72,1048.19,1102.03,1120.03,1133.03],"kind":"live","markets":[{"source":"kalshi","id":"KXATPDOUBLES-26SEP09HELPATANDGUI-HELPAT","event_id":"KXATPDOUBLES-26SEP09HELPATANDGUI","slug":"KXATPDOUBLES-26SEP09HELPATANDGUI-HELPAT","question":"Harri Heliovaara / Henry Patten wins","group_item_title":"Harri Heliovaara / Henry Patten","description":"If Harri Heliovaara / Henry Patten wins the Heliovaara / Patten vs Andreozzi / Guinard professional tennis match in the 2026 US Open Men Doubles Quarterfinal after a ball has been played, then the market resolves to Yes.\n\n---\n\nThe following market refers to the Heliovaara / Patten vs Andreozzi / Guinard professional tennis match in the 2026 US Open Men Doubles Quarterfinal 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":[0.67,0.32999999999999996],"probability":0.67,"spread":0.010000000000000009,"active":true,"closed":false,"start_date":"2026-09-09T01:05:00Z","end_date":"2026-09-23T15:00:00Z","closed_time":"2026-09-23T15:00:00Z","volume":1062.71,"volume_24hr":1062.71,"prob_24h_change":0.67,"volume_24h_change":1062.71,"normalized_vol_24hr":16.909765243530273,"normalized_volume":15.1211519241333,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-09-09T21:18:29.442195Z","fetched_at":"2026-09-09T21:18:29.442195Z","added_at":"2026-09-09T01:06:53.845453Z","url":"https://kalshi.com/markets/kxatpdoubles/heliovaara-patten-vs-andreozzi-guinard/kxatpdoubles-26sep09helpatandgui","event_title":"Heliovaara / Patten vs Andreozzi / Guinard","chart_24h":[0.0,0.75,0.75,0.75,0.73,0.73,0.71,0.71,0.71,0.67,0.67,0.67,0.67,0.67,0.67,0.67,0.67,0.66,0.67,0.66,0.66,0.66,0.67]},{"source":"kalshi","id":"KXATPDOUBLES-26SEP09HELPATANDGUI-ANDGUI","event_id":"KXATPDOUBLES-26SEP09HELPATANDGUI","slug":"KXATPDOUBLES-26SEP09HELPATANDGUI-ANDGUI","question":"Guido Andreozzi / Manuel Guinard wins","group_item_title":"Guido Andreozzi / Manuel Guinard","description":"If Guido Andreozzi / Manuel Guinard wins the Heliovaara / Patten vs Andreozzi / Guinard professional tennis match in the 2026 US Open Men Doubles Quarterfinal after a ball has been played, then the market resolves to Yes.\n\n---\n\nThe following market refers to the Heliovaara / Patten vs Andreozzi / Guinard professional tennis match in the 2026 US Open Men Doubles Quarterfinal 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":[0.35,0.65],"probability":0.35,"spread":0.010000000000000009,"active":true,"closed":false,"start_date":"2026-09-09T01:05:00Z","end_date":"2026-09-23T15:00:00Z","closed_time":"2026-09-23T15:00:00Z","volume":108.32,"volume_24hr":108.32,"prob_24h_change":0.35,"volume_24h_change":108.32,"normalized_vol_24hr":7.6713175773620605,"normalized_volume":6.859891414642334,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-09-09T21:02:48.690401Z","fetched_at":"2026-09-09T21:02:48.690401Z","added_at":"2026-09-09T01:06:53.845453Z","url":"https://kalshi.com/markets/kxatpdoubles/heliovaara-patten-vs-andreozzi-guinard/kxatpdoubles-26sep09helpatandgui","event_title":"Heliovaara / Patten vs Andreozzi / Guinard","chart_24h":[0.0,0.0,0.0,0.0,0.32,0.32,0.32,0.32,0.32,0.32,0.32,0.32,0.32,0.32,0.35,0.35,0.35,0.36,0.35,0.35,0.35]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXATPDOUBLES-26SEP09HELPATANDGUI","as_of":"2026-09-09T21:28:27.801327Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Heliovaara / Patten vs Andreozzi / Guinard\" — top market at 67% probability across 2 outcomes","source_url":null}}