{"_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/KXATPCHALLENGERDOUBLES-26NOV11EFSNEOHOPWHI","as_of":"2026-11-11T09:54:03.738395Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Efstathiou / Neos vs Hopper / Whitehouse\" — resolved: \"Menelaos Efstathiou / Eleftherios Neos\" (closed 2026-11-11). https://pdata.world/events/kalshi/KXATPCHALLENGERDOUBLES-26NOV11EFSNEOHOPWHI","source_url":"https://kalshi.com/markets/kxatpchallengerdoubles/efstathiou-neos-vs-hopper-whitehouse/kxatpchallengerdoubles-26nov11efsneohopwhi"},"source":"kalshi","id":"KXATPCHALLENGERDOUBLES-26NOV11EFSNEOHOPWHI","ticker":"KXATPCHALLENGERDOUBLES-26NOV11EFSNEOHOPWHI","slug":"KXATPCHALLENGERDOUBLES-26NOV11EFSNEOHOPWHI","title":"Efstathiou / Neos vs Hopper / Whitehouse","description":null,"image":null,"icon":null,"active":false,"closed":true,"start_date":"2026-11-10T20:11:00Z","end_date":"2026-11-25T08:00:00Z","closed_time":"2026-11-11T09:30:03Z","volume":14001.96,"volume_24hr":6869.73,"volume_24h_change":null,"normalized_vol_24hr":25.460853576660156,"normalized_volume":24.052705764770508,"liquidity":null,"open_interest":10241.630000000001,"categories":["Sports"],"tags":[],"synthetic":false,"is_group":false,"group_key":"26NOV11EFSNEOHOPWHI","parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Menelaos Efstathiou / Eleftherios Neos","top_outcome_probability":0.99,"top_outcome_prob_24h_change":0.99,"top_outcome_volume_24h_change":622.65,"updated_at":"2026-11-11T09:32:05.636099Z","fetched_at":"2026-11-11T09:32:05.636099Z","added_at":"2026-11-10T20:13:16.117288Z","url":"https://kalshi.com/markets/kxatpchallengerdoubles/efstathiou-neos-vs-hopper-whitehouse/kxatpchallengerdoubles-26nov11efsneohopwhi","chart_24h":[0.0,3.0,3.0,4471.139999999999,5204.61,6869.73],"kind":"live","mutually_exclusive":true,"markets_total":2,"markets":[{"source":"kalshi","id":"KXATPCHALLENGERDOUBLES-26NOV11EFSNEOHOPWHI-EFSNEO","event_id":"KXATPCHALLENGERDOUBLES-26NOV11EFSNEOHOPWHI","slug":"KXATPCHALLENGERDOUBLES-26NOV11EFSNEOHOPWHI-EFSNEO","question":"Menelaos Efstathiou / Eleftherios Neos wins","group_item_title":"Menelaos Efstathiou / Eleftherios Neos","description":"If Menelaos Efstathiou / Eleftherios Neos wins the Efstathiou / Neos vs Hopper / Whitehouse professional tennis match in the 2026 ATP Challenger Hersonissos Round Of 16 after a ball has been played, then the market resolves to Yes.\n\n---\n\nThe following market refers to the Efstathiou / Neos vs Hopper / Whitehouse professional tennis match in the 2026 ATP Challenger Hersonissos 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":"2026-11-10T20:11:00Z","end_date":"2026-11-25T08:00:00Z","closed_time":"2026-11-11T09:30:03Z","result":"yes","volume":4365.97,"volume_24hr":622.65,"prob_24h_change":0.99,"volume_24h_change":622.65,"normalized_vol_24hr":15.35445785522461,"normalized_volume":19.710779190063477,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-11-11T09:32:05.642369Z","fetched_at":"2026-11-11T09:32:05.642369Z","added_at":"2026-11-10T20:13:16.263587Z","url":"https://kalshi.com/markets/kxatpchallengerdoubles/efstathiou-neos-vs-hopper-whitehouse/kxatpchallengerdoubles-26nov11efsneohopwhi","event_title":"Efstathiou / Neos vs Hopper / Whitehouse","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.73,0.53,0.99]},{"source":"kalshi","id":"KXATPCHALLENGERDOUBLES-26NOV11EFSNEOHOPWHI-HOPWHI","event_id":"KXATPCHALLENGERDOUBLES-26NOV11EFSNEOHOPWHI","slug":"KXATPCHALLENGERDOUBLES-26NOV11EFSNEOHOPWHI-HOPWHI","question":"James Hopper / Mark Whitehouse wins","group_item_title":"James Hopper / Mark Whitehouse","description":"If James Hopper / Mark Whitehouse wins the Efstathiou / Neos vs Hopper / Whitehouse professional tennis match in the 2026 ATP Challenger Hersonissos Round Of 16 after a ball has been played, then the market resolves to Yes.\n\n---\n\nThe following market refers to the Efstathiou / Neos vs Hopper / Whitehouse professional tennis match in the 2026 ATP Challenger Hersonissos 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":"2026-11-10T20:11:00Z","end_date":"2026-11-25T08:00:00Z","closed_time":"2026-11-11T09:30:03Z","result":"no","volume":9635.99,"volume_24hr":6247.08,"prob_24h_change":0.01,"volume_24h_change":6247.08,"normalized_vol_24hr":28.319374084472656,"normalized_volume":23.609344482421875,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-11-11T09:32:05.642369Z","fetched_at":"2026-11-11T09:32:05.642369Z","added_at":"2026-11-10T20:13:16.263587Z","url":"https://kalshi.com/markets/kxatpchallengerdoubles/efstathiou-neos-vs-hopper-whitehouse/kxatpchallengerdoubles-26nov11efsneohopwhi","event_title":"Efstathiou / Neos vs Hopper / Whitehouse","chart_24h":[0.0,0.6,0.6,0.6,0.66,0.27,0.55,0.01]}]}