{"_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/KXWTASETWINNER-26OCT07MERSWI-1","as_of":"2026-10-09T13:17:30.592570Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Elise Mertens vs Iga Swiatek: Set 1 Winner\" — resolved: \"Elise Mertens\" (closed 2026-10-09). https://pdata.world/events/kalshi/KXWTASETWINNER-26OCT07MERSWI-1","source_url":"https://kalshi.com/markets/kxwtasetwinner/elise-mertens-vs-iga-swiatek-set-1-winner/kxwtasetwinner-26oct07merswi-1"},"source":"kalshi","id":"KXWTASETWINNER-26OCT07MERSWI-1","ticker":"KXWTASETWINNER-26OCT07MERSWI-1","slug":"KXWTASETWINNER-26OCT07MERSWI-1","title":"Elise Mertens vs Iga Swiatek: Set 1 Winner","description":null,"image":null,"icon":null,"active":false,"closed":true,"start_date":"2026-10-07T08:50:00Z","end_date":"2026-10-22T03:00:00Z","closed_time":"2026-10-09T12:26:11Z","volume":253404.1,"volume_24hr":252967.72,"volume_24h_change":null,"normalized_vol_24hr":44.520015716552734,"normalized_volume":41.679866790771484,"liquidity":null,"open_interest":140345.53,"categories":["Sports"],"tags":[],"synthetic":false,"is_group":false,"group_key":"26OCT07MERSWI-1","parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Elise Mertens","top_outcome_probability":0.99,"top_outcome_prob_24h_change":0.72,"top_outcome_volume_24h_change":126531.92,"updated_at":"2026-10-09T12:33:08.129696Z","fetched_at":"2026-10-09T12:33:08.129696Z","added_at":"2026-10-07T08:59:05.666461Z","url":"https://kalshi.com/markets/kxwtasetwinner/elise-mertens-vs-iga-swiatek-set-1-winner/kxwtasetwinner-26oct07merswi-1","chart_24h":[439.9,443.83,450.83,494.34999999999997,484.34999999999997,479.34999999999997,134.35,117.35,849.6999999999999,853.1,845.0,863.0,863.0,950.72,1039.07,1114.3500000000001,2241.7,3626.31,6030.8099999999995,6509.46,25732.71,244908.74,252967.72],"kind":"live","mutually_exclusive":true,"markets_total":2,"markets":[{"source":"kalshi","id":"KXWTASETWINNER-26OCT07MERSWI-1-MER","event_id":"KXWTASETWINNER-26OCT07MERSWI-1","slug":"KXWTASETWINNER-26OCT07MERSWI-1-MER","question":"Will Elise Mertens win set 1 in the Elise Mertens vs Iga Swiatek match","group_item_title":"Elise Mertens","description":"If Elise Mertens wins set 1 in the Elise Mertens vs Iga Swiatek professional tennis match in the 2026 WTA Beijing Quarterfinal, then the market resolves to Yes.\n\n---\n\nThe following market refers to the Elise Mertens vs Iga Swiatek professional tennis match in the 2026 WTA Beijing Quarterfinal. 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). If a retirement occurs, all markets that can be unconditionally settled based on play already completed will resolve accordingly. Any markets that cannot be unconditionally settled will resolve to Fair Market Price, as determined at the sole discretion of the Exchange.\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":"2026-10-07T08:50:00Z","end_date":"2026-10-22T03:00:00Z","closed_time":"2026-10-09T12:26:11Z","result":"yes","volume":127384.52,"volume_24hr":126959.98,"prob_24h_change":0.72,"volume_24h_change":126531.92,"normalized_vol_24hr":45.903526306152344,"normalized_volume":43.01527404785156,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-10-09T12:33:08.255743Z","fetched_at":"2026-10-09T12:33:08.255743Z","added_at":"2026-10-07T08:59:05.927152Z","url":"https://kalshi.com/markets/kxwtasetwinner/elise-mertens-vs-iga-swiatek-set-1-winner/kxwtasetwinner-26oct07merswi-1","event_title":"Elise Mertens vs Iga Swiatek: Set 1 Winner","chart_24h":[0.27,0.27,0.27,0.27,0.27,0.27,0.27,0.27,0.27,0.27,0.28,0.28,0.28,0.28,0.28,0.28,0.27,0.27,0.34,0.99,0.99]},{"source":"kalshi","id":"KXWTASETWINNER-26OCT07MERSWI-1-SWI","event_id":"KXWTASETWINNER-26OCT07MERSWI-1","slug":"KXWTASETWINNER-26OCT07MERSWI-1-SWI","question":"Will Iga Swiatek win set 1 in the Elise Mertens vs Iga Swiatek match","group_item_title":"Iga Swiatek","description":"If Iga Swiatek wins set 1 in the Elise Mertens vs Iga Swiatek professional tennis match in the 2026 WTA Beijing Quarterfinal, then the market resolves to Yes.\n\n---\n\nThe following market refers to the Elise Mertens vs Iga Swiatek professional tennis match in the 2026 WTA Beijing Quarterfinal. 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). If a retirement occurs, all markets that can be unconditionally settled based on play already completed will resolve accordingly. Any markets that cannot be unconditionally settled will resolve to Fair Market Price, as determined at the sole discretion of the Exchange.\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":"2026-10-07T08:50:00Z","end_date":"2026-10-22T03:00:00Z","closed_time":"2026-10-09T12:26:11Z","result":"no","volume":126019.58,"volume_24hr":126007.74,"prob_24h_change":-0.73,"volume_24h_change":125995.90000000001,"normalized_vol_24hr":45.844730377197266,"normalized_volume":42.936466217041016,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-10-09T12:33:08.255743Z","fetched_at":"2026-10-09T12:33:08.255743Z","added_at":"2026-10-07T08:59:05.927152Z","url":"https://kalshi.com/markets/kxwtasetwinner/elise-mertens-vs-iga-swiatek-set-1-winner/kxwtasetwinner-26oct07merswi-1","event_title":"Elise Mertens vs Iga Swiatek: Set 1 Winner","chart_24h":[0.74,0.75,0.75,0.75,0.75,0.75,0.75,0.75,0.75,0.75,0.75,0.75,0.74,0.74,0.73,0.73,0.72,0.74,0.75,0.75,0.75,0.71,0.01,0.01]}]}