{"source":"gemini","id":"218547","ticker":"TENNIS-WTAUSO-20260828-KAL3-VAL4","slug":"elvina-kalieva-vs-vendula-valdmannova","title":"Elvina Kalieva vs Vendula Valdmannova","description":"Elvina Kalieva vs Vendula Valdmannova","image":"https://assets.gemini.com/predictions/images/tennis_test_02_42aacd7e-073f-453c-a9a2-7f09d07bbc38.jpg","icon":null,"active":false,"closed":true,"start_date":"2026-08-27T23:12:58.118000Z","end_date":"2026-08-29T05:35:00Z","closed_time":"2026-08-28T20:38:46.686000Z","volume":49693.05,"volume_24hr":49693.05,"volume_24h_change":null,"normalized_vol_24hr":95.69983673095703,"normalized_volume":73.23121643066406,"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":"Elvina Kalieva","top_outcome_probability":1.0,"top_outcome_prob_24h_change":0.52,"top_outcome_volume_24h_change":null,"updated_at":"2026-08-28T20:42:29.767251Z","fetched_at":"2026-08-28T20:42:29.767251Z","added_at":"2026-08-27T23:24:25.526216Z","url":"https://www.gemini.com/predictions/TENNIS-WTAUSO-20260828-KAL3-VAL4/elvina-kalieva-vs-vendula-valdmannova","chart_24h":[0.0,10.03,1638.92,5818.67,15433.18,32557.87,49693.05],"markets":[{"source":"gemini","id":"218547-524669","event_id":"218547","slug":"GEMI-TENNIS-WTAUSO-20260828-KAL3-VAL4-KAL3","question":"Elvina Kalieva","group_item_title":"Elvina Kalieva","description":"This market resolves to Yes if Elvina Kalieva wins the tennis match between Elvina Kalieva and Vendula Valdmannova originally scheduled for August 28, 2026 at 12:10 PM ET. Otherwise, it will resolve 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://images.ctfassets.net/jg6lo9a2ukvr/enO9xnfkxGSdWrMuQ8f5I/4c82ff835d421bbc99f0e320a08f2088/153-united-states-of-america.png","icon":null,"outcomes":["Yes","No"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.04,"active":false,"closed":true,"start_date":"2026-08-28T05:00:00Z","end_date":"2026-08-29T05:35:00Z","closed_time":"2026-08-28T20:38:46.686000Z","volume":null,"volume_24hr":null,"prob_24h_change":0.52,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-28T20:42:35.878878Z","fetched_at":"2026-08-28T20:42:29.790464Z","added_at":"2026-08-27T23:24:25.627185Z","url":"https://www.gemini.com/predictions/TENNIS-WTAUSO-20260828-KAL3-VAL4/elvina-kalieva-vs-vendula-valdmannova","event_title":"Elvina Kalieva vs Vendula Valdmannova","chart_24h":[0.48,0.48,0.49,0.49,0.48,0.49,0.49,0.5,0.49,0.48,0.49,0.49,0.5,0.66,0.17,0.58,0.88,1.0]},{"source":"gemini","id":"218547-524670","event_id":"218547","slug":"GEMI-TENNIS-WTAUSO-20260828-KAL3-VAL4-VAL4","question":"Vendula Valdmannova","group_item_title":"Vendula Valdmannova","description":"This market resolves to Yes if Vendula Valdmannova wins the tennis match between Vendula Valdmannova and Elvina Kalieva originally scheduled for August 28, 2026 at 12:10 PM ET. Otherwise, it will resolve 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://images.ctfassets.net/jg6lo9a2ukvr/64GqAUITALgTJCEC2G02NY/fceaa8ede611cd68a94e0c79509adee7/061-czech-republic.png","icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.04,"active":false,"closed":true,"start_date":"2026-08-28T05:00:00Z","end_date":"2026-08-29T05:35:00Z","closed_time":"2026-08-28T20:38:46.520000Z","volume":null,"volume_24hr":null,"prob_24h_change":-0.53,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-28T20:42:35.878878Z","fetched_at":"2026-08-28T20:42:29.790464Z","added_at":"2026-08-27T23:24:25.627185Z","url":"https://www.gemini.com/predictions/TENNIS-WTAUSO-20260828-KAL3-VAL4/elvina-kalieva-vs-vendula-valdmannova","event_title":"Elvina Kalieva vs Vendula Valdmannova","chart_24h":[0.53,0.53,0.54,0.54,0.54,0.54,0.54,0.54,0.54,0.54,0.56,0.55,0.54,0.55,0.54,0.55,0.37,0.88,0.47,0.17,0.0]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/gemini/218547","as_of":"2026-08-28T22:10:37.679424Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Gemini): \"Elvina Kalieva vs Vendula Valdmannova\" — top market at 100% probability across 2 outcomes","source_url":null}}