{"source":"gemini","id":"240713","ticker":"TENNIS-WTAUSODBL-20260909-SINTOW-MERSHN","slug":"siniakova-townsend-vs-mertens-shnaider","title":"Siniakova / Townsend vs Mertens / Shnaider","description":"Siniakova / Townsend vs Mertens / Shnaider","image":"https://assets.gemini.com/predictions/images/tennis_test_02_42aacd7e-073f-453c-a9a2-7f09d07bbc38.jpg","icon":null,"active":true,"closed":false,"start_date":"2026-09-09T00:00:06.748000Z","end_date":"2026-09-10T15:00:00Z","closed_time":null,"volume":5252.56,"volume_24hr":5252.56,"volume_24h_change":null,"normalized_vol_24hr":54.37394714355469,"normalized_volume":46.29111862182617,"liquidity":null,"open_interest":null,"categories":["Sports"],"tags":["US Open"],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Katerina Siniakova / Taylor Townsend","top_outcome_probability":0.79,"top_outcome_prob_24h_change":0.54,"top_outcome_volume_24h_change":null,"updated_at":"2026-09-09T17:13:24.150151Z","fetched_at":"2026-09-09T17:13:24.150151Z","added_at":"2026-09-09T00:21:32.739272Z","url":"https://www.gemini.com/predictions/TENNIS-WTAUSODBL-20260909-SINTOW-MERSHN/siniakova-townsend-vs-mertens-shnaider","chart_24h":[0.0,76.0,176.0,278.46,1467.44,2750.16,5187.71,5250.07],"kind":"live","markets":[{"source":"gemini","id":"240713-592070","event_id":"240713","slug":"GEMI-TENNIS-WTAUSODBL-20260909-SINTOW-MERSHN-SINTOW","question":"Katerina Siniakova / Taylor Townsend","group_item_title":"Katerina Siniakova / Taylor Townsend","description":"This market resolves to Yes if Katerina Siniakova / Taylor Townsend wins the tennis match between Katerina Siniakova / Taylor Townsend and Elise Mertens / Diana Shnaider scheduled for September 9, 2026 at 11:00 AM ET. Otherwise, it resolves to No. The Underlying is the official result of the specified sporting event. Source Agencies, in order, are the tournament governing body (ATP, WTA, ITF), ESPN, Fox Sports, and the broadcast partner of the event. If the Expiration Value cannot be determined on the Expiration Date (including because the event is cancelled or a player forfeits, withdraws, or is disqualified), the Exchange may determine payouts pursuant to the Market Outcome Review Process. View the [full rules](https://assets.gemini.com/predictions/terms_and_conditions/Sporting_Win_Lose_Event_2_Terms_and_Conditions_f232ede2-4e1a-4126-a1d7-89e0fa2225e2.pdf)","image":"https://assets.gemini.com/predictions/images/NEU_8396a4cb-e255-4cef-9b51-362adb0ffa40.avif","icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.79,0.24],"probability":0.79,"spread":0.03,"active":true,"closed":false,"start_date":"2026-09-08T09:00:00Z","end_date":"2026-09-10T15:00:00Z","closed_time":null,"volume":null,"volume_24hr":null,"prob_24h_change":0.54,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-09-09T16:29:54.130386Z","fetched_at":"2026-09-09T16:29:54.130386Z","added_at":"2026-09-09T00:21:33.070369Z","url":"https://www.gemini.com/predictions/TENNIS-WTAUSODBL-20260909-SINTOW-MERSHN/siniakova-townsend-vs-mertens-shnaider","event_title":"Siniakova / Townsend vs Mertens / Shnaider","chart_24h":[0.25,0.75,0.78,0.77,0.79,0.5,0.65,0.35,0.35,0.8,0.35,0.79,0.35,0.79,0.79,0.78,0.78,0.79,0.79]},{"source":"gemini","id":"240713-592073","event_id":"240713","slug":"GEMI-TENNIS-WTAUSODBL-20260909-SINTOW-MERSHN-MERSHN","question":"Elise Mertens / Diana Shnaider","group_item_title":"Elise Mertens / Diana Shnaider","description":"This market resolves to Yes if Elise Mertens / Diana Shnaider wins the tennis match between Elise Mertens / Diana Shnaider and Katerina Siniakova / Taylor Townsend scheduled for September 9, 2026 at 11:00 AM ET. Otherwise, it resolves to No. The Underlying is the official result of the specified sporting event. Source Agencies, in order, are the tournament governing body (ATP, WTA, ITF), ESPN, Fox Sports, and the broadcast partner of the event. If the Expiration Value cannot be determined on the Expiration Date (including because the event is cancelled or a player forfeits, withdraws, or is disqualified), the Exchange may determine payouts pursuant to the Market Outcome Review Process. View the [full rules](https://assets.gemini.com/predictions/terms_and_conditions/Sporting_Win_Lose_Event_2_Terms_and_Conditions_f232ede2-4e1a-4126-a1d7-89e0fa2225e2.pdf)","image":"https://assets.gemini.com/predictions/images/NEU_8396a4cb-e255-4cef-9b51-362adb0ffa40.avif","icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.24,0.79],"probability":0.24,"spread":0.03,"active":true,"closed":false,"start_date":"2026-09-08T09:00:00Z","end_date":"2026-09-10T15:00:00Z","closed_time":null,"volume":null,"volume_24hr":null,"prob_24h_change":-0.06,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-09-09T16:07:46.319835Z","fetched_at":"2026-09-09T16:07:46.319835Z","added_at":"2026-09-09T00:21:33.070369Z","url":"https://www.gemini.com/predictions/TENNIS-WTAUSODBL-20260909-SINTOW-MERSHN/siniakova-townsend-vs-mertens-shnaider","event_title":"Siniakova / Townsend vs Mertens / Shnaider","chart_24h":[0.3,0.27,0.26,0.27,0.55,0.39,0.66,0.25,0.24,0.23,0.24,0.24,0.24,0.25,0.25,0.24]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/gemini/240713","as_of":"2026-09-09T17:27:36.223442Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Gemini): \"Siniakova / Townsend vs Mertens / Shnaider\" — top market at 79% probability across 2 outcomes","source_url":null}}