{"source":"kalshi","id":"KXWTADOUBLES-26SEP08HSIOSTMERSHN","ticker":"KXWTADOUBLES-26SEP08HSIOSTMERSHN","slug":"KXWTADOUBLES-26SEP08HSIOSTMERSHN","title":"Hsieh S-W / Ostapenko vs Mertens / Shnaider","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-09-07T21:55:00Z","end_date":"2026-09-22T20:10:00Z","closed_time":null,"volume":4552.23,"volume_24hr":3567.6699999999996,"volume_24h_change":null,"normalized_vol_24hr":21.989059448242188,"normalized_volume":19.296188354492188,"liquidity":null,"open_interest":4409.4400000000005,"categories":["Sports"],"tags":[],"synthetic":false,"is_group":false,"group_key":"26SEP08HSIOSTMERSHN","parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Su-Wei Hsieh / Jelena Ostapenko","top_outcome_probability":0.58,"top_outcome_prob_24h_change":0.58,"top_outcome_volume_24h_change":2644.74,"updated_at":"2026-09-08T20:37:42.362279Z","fetched_at":"2026-09-08T20:37:42.362279Z","added_at":"2026-09-07T22:08:25.015971Z","url":"https://kalshi.com/markets/kxwtadoubles/hsieh-s-w-ostapenko-vs-mertens-shnaider/kxwtadoubles-26sep08hsiostmershn","chart_24h":[0.0,1.28,13.28,21.2,37.2,39.29,70.93,81.4,300.61,300.61,437.27,464.62,465.62,469.62,469.62,471.62,471.62,532.65,610.0799999999999,734.3299999999999,749.05,858.31,891.26,1000.72,1000.72,1118.4,1482.18,1595.8000000000002,1945.0500000000002],"kind":"live","markets":[{"source":"kalshi","id":"KXWTADOUBLES-26SEP08HSIOSTMERSHN-HSIOST","event_id":"KXWTADOUBLES-26SEP08HSIOSTMERSHN","slug":"KXWTADOUBLES-26SEP08HSIOSTMERSHN-HSIOST","question":"Su-Wei Hsieh / Jelena Ostapenko wins","group_item_title":"Su-Wei Hsieh / Jelena Ostapenko","description":"If Su-Wei Hsieh / Jelena Ostapenko wins the Hsieh S-W / Ostapenko vs Mertens / Shnaider professional tennis match in the 2026 US Open Women Doubles Quarterfinal after a ball has been played, then the market resolves to Yes.\n\n---\n\nThe following market refers to the Hsieh S-W / Ostapenko vs Mertens / Shnaider professional tennis match in the 2026 US Open Women 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":[0.58,0.42000000000000004],"probability":0.58,"spread":0.010000000000000009,"active":true,"closed":false,"start_date":"2026-09-07T21:55:00Z","end_date":"2026-09-22T20:10:00Z","closed_time":"2026-09-22T20:10:00Z","volume":2840.36,"volume_24hr":2644.74,"prob_24h_change":0.58,"volume_24h_change":2644.74,"normalized_vol_24hr":21.8365478515625,"normalized_volume":19.685039520263672,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-09-08T20:37:42.518780Z","fetched_at":"2026-09-08T20:37:42.518780Z","added_at":"2026-09-07T22:08:25.141890Z","url":"https://kalshi.com/markets/kxwtadoubles/hsieh-s-w-ostapenko-vs-mertens-shnaider/kxwtadoubles-26sep08hsiostmershn","event_title":"Hsieh S-W / Ostapenko vs Mertens / Shnaider","chart_24h":[0.0,0.0,0.59,0.59,0.59,0.62,0.62,0.58,0.58,0.58,0.58,0.58,0.58,0.58,0.58,0.59,0.59,0.59,0.59,0.59,0.59,0.59,0.56,0.58,0.59,0.56,0.57,0.57]},{"source":"kalshi","id":"KXWTADOUBLES-26SEP08HSIOSTMERSHN-MERSHN","event_id":"KXWTADOUBLES-26SEP08HSIOSTMERSHN","slug":"KXWTADOUBLES-26SEP08HSIOSTMERSHN-MERSHN","question":"Elise Mertens / Diana Shnaider wins","group_item_title":"Elise Mertens / Diana Shnaider","description":"If Elise Mertens / Diana Shnaider wins the Hsieh S-W / Ostapenko vs Mertens / Shnaider professional tennis match in the 2026 US Open Women Doubles Quarterfinal after a ball has been played, then the market resolves to Yes.\n\n---\n\nThe following market refers to the Hsieh S-W / Ostapenko vs Mertens / Shnaider professional tennis match in the 2026 US Open Women 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":[0.49,0.51],"probability":0.49,"spread":0.030000000000000027,"active":true,"closed":false,"start_date":"2026-09-07T21:55:00Z","end_date":"2026-09-22T20:10:00Z","closed_time":"2026-09-22T20:10:00Z","volume":1711.87,"volume_24hr":922.93,"prob_24h_change":0.49,"volume_24h_change":922.93,"normalized_vol_24hr":16.395387649536133,"normalized_volume":17.259044647216797,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-09-08T20:37:42.518780Z","fetched_at":"2026-09-08T20:37:42.518780Z","added_at":"2026-09-07T22:08:25.141890Z","url":"https://kalshi.com/markets/kxwtadoubles/hsieh-s-w-ostapenko-vs-mertens-shnaider/kxwtadoubles-26sep08hsiostmershn","event_title":"Hsieh S-W / Ostapenko vs Mertens / Shnaider","chart_24h":[0.0,0.75,0.76,0.61,0.61,0.61,0.46,0.46,0.45,0.45,0.45,0.45,0.45,0.45,0.45,0.45,0.44,0.43,0.43,0.43,0.43,0.42,0.42,0.42,0.42,0.42,0.42,0.42,0.44]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXWTADOUBLES-26SEP08HSIOSTMERSHN","as_of":"2026-09-08T20:49:41.069354Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Hsieh S-W / Ostapenko vs Mertens / Shnaider\" — top market at 58% probability across 2 outcomes","source_url":null}}