{"source":"kalshi","id":"KXATPCHALLENGERDOUBLES-26SEP09GREHEIFORKEL","ticker":"KXATPCHALLENGERDOUBLES-26SEP09GREHEIFORKEL","slug":"KXATPCHALLENGERDOUBLES-26SEP09GREHEIFORKEL","title":"Grevelius / Heinonen vs Forejtek / Kellovsky","description":null,"image":null,"icon":null,"active":false,"closed":true,"start_date":"2026-09-08T21:10:00Z","end_date":"2026-09-23T09:00:00Z","closed_time":"2026-09-09T10:44:54Z","volume":3479.2,"volume_24hr":3479.2,"volume_24h_change":null,"normalized_vol_24hr":21.700847625732422,"normalized_volume":18.0779972076416,"liquidity":null,"open_interest":3477.89,"categories":["Sports"],"tags":[],"synthetic":false,"is_group":false,"group_key":"26SEP09GREHEIFORKEL","parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Erik Grevelius / Adam Heinonen","top_outcome_probability":0.99,"top_outcome_prob_24h_change":0.99,"top_outcome_volume_24h_change":2129.29,"updated_at":"2026-09-09T10:56:19.617415Z","fetched_at":"2026-09-09T10:56:19.617415Z","added_at":"2026-09-08T21:20:32.170213Z","url":"https://kalshi.com/markets/kxatpchallengerdoubles/grevelius-heinonen-vs-forejtek-kellovsky/kxatpchallengerdoubles-26sep09greheiforkel","chart_24h":[0.0,0.0,762.31,3479.2],"kind":"live","markets":[{"source":"kalshi","id":"KXATPCHALLENGERDOUBLES-26SEP09GREHEIFORKEL-GREHEI","event_id":"KXATPCHALLENGERDOUBLES-26SEP09GREHEIFORKEL","slug":"KXATPCHALLENGERDOUBLES-26SEP09GREHEIFORKEL-GREHEI","question":"Erik Grevelius / Adam Heinonen wins","group_item_title":"Erik Grevelius / Adam Heinonen","description":"If Erik Grevelius / Adam Heinonen wins the Grevelius / Heinonen vs Forejtek / Kellovsky professional tennis match in the 2026 ATP Challenger Seville Round Of 16 after a ball has been played, then the market resolves to Yes.\n\n---\n\nThe following market refers to the Grevelius / Heinonen vs Forejtek / Kellovsky professional tennis match in the 2026 ATP Challenger Seville Round Of 16 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":"2026-09-08T21:10:00Z","end_date":"2026-09-23T09:00:00Z","closed_time":"2026-09-09T10:44:54Z","volume":2129.29,"volume_24hr":2129.29,"prob_24h_change":0.99,"volume_24h_change":2129.29,"normalized_vol_24hr":20.380794525146484,"normalized_volume":18.284870147705078,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-09-09T10:56:19.630722Z","fetched_at":"2026-09-09T10:56:19.630722Z","added_at":"2026-09-08T21:20:32.354589Z","url":"https://kalshi.com/markets/kxatpchallengerdoubles/grevelius-heinonen-vs-forejtek-kellovsky/kxatpchallengerdoubles-26sep09greheiforkel","event_title":"Grevelius / Heinonen vs Forejtek / Kellovsky","chart_24h":[0.0,0.0,0.88,0.99]},{"source":"kalshi","id":"KXATPCHALLENGERDOUBLES-26SEP09GREHEIFORKEL-FORKEL","event_id":"KXATPCHALLENGERDOUBLES-26SEP09GREHEIFORKEL","slug":"KXATPCHALLENGERDOUBLES-26SEP09GREHEIFORKEL-FORKEL","question":"Jonas Forejtek / Dominik Kellovsky wins","group_item_title":"Jonas Forejtek / Dominik Kellovsky","description":"If Jonas Forejtek / Dominik Kellovsky wins the Grevelius / Heinonen vs Forejtek / Kellovsky professional tennis match in the 2026 ATP Challenger Seville Round Of 16 after a ball has been played, then the market resolves to Yes.\n\n---\n\nThe following market refers to the Grevelius / Heinonen vs Forejtek / Kellovsky professional tennis match in the 2026 ATP Challenger Seville Round Of 16 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":"2026-09-08T21:10:00Z","end_date":"2026-09-23T09:00:00Z","closed_time":"2026-09-09T10:44:54Z","volume":1349.91,"volume_24hr":1349.91,"prob_24h_change":0.01,"volume_24h_change":1349.91,"normalized_vol_24hr":18.03028106689453,"normalized_volume":16.17607879638672,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-09-09T10:56:19.630722Z","fetched_at":"2026-09-09T10:56:19.630722Z","added_at":"2026-09-08T21:20:32.354589Z","url":"https://kalshi.com/markets/kxatpchallengerdoubles/grevelius-heinonen-vs-forejtek-kellovsky/kxatpchallengerdoubles-26sep09greheiforkel","event_title":"Grevelius / Heinonen vs Forejtek / Kellovsky","chart_24h":[0.0,0.75,0.25,0.01]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXATPCHALLENGERDOUBLES-26SEP09GREHEIFORKEL","as_of":"2026-09-09T13:41:23.532746Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Grevelius / Heinonen vs Forejtek / Kellovsky\" — top market at 99% probability across 2 outcomes","source_url":null}}