{"source":"gemini","id":"219618","ticker":"TENNIS-ATPUSO-20260830-ARN-DUC","slug":"matteo-arnaldi-vs-james-duckworth","title":"Matteo Arnaldi vs James Duckworth","description":"Matteo Arnaldi vs James Duckworth","image":"https://assets.gemini.com/predictions/images/tennis_test_02_42aacd7e-073f-453c-a9a2-7f09d07bbc38.jpg","icon":null,"active":false,"closed":true,"start_date":"2026-08-28T13:25:48.176000Z","end_date":"2026-09-01T17:10:00Z","closed_time":"2026-08-31T20:43:51.559000Z","volume":6157.42,"volume_24hr":6155.86,"volume_24h_change":null,"normalized_vol_24hr":60.22978210449219,"normalized_volume":48.024478912353516,"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":"James Duckworth","top_outcome_probability":1.0,"top_outcome_prob_24h_change":0.6,"top_outcome_volume_24h_change":null,"updated_at":"2026-08-31T20:45:46.907425Z","fetched_at":"2026-08-31T20:45:46.907425Z","added_at":"2026-08-28T13:42:48.360408Z","url":"https://www.gemini.com/predictions/TENNIS-ATPUSO-20260830-ARN-DUC/matteo-arnaldi-vs-james-duckworth","chart_24h":[11.6,164.0,549.23,719.52,787.52,2191.12,4076.64,4164.25,6155.86],"kind":"live","markets":[{"source":"gemini","id":"219618-527140","event_id":"219618","slug":"GEMI-TENNIS-ATPUSO-20260830-ARN-DUC-DUC","question":"James Duckworth","group_item_title":"James Duckworth","description":"This market resolves to Yes if James Duckworth wins the tennis match between James Duckworth and Matteo Arnaldi originally scheduled for August 30, 2026 at 11:00 AM 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_1078aa92-c5fe-42cb-9491-466335816650.pdf)","image":"https://images.ctfassets.net/jg6lo9a2ukvr/6WWPiPCkPv8rsJD22oysSO/45d53deab0a369ac1c746e79993a2d8f/130-australia.png","icon":null,"outcomes":["Yes","No"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.02,"active":false,"closed":true,"start_date":"2026-08-31T05:00:00Z","end_date":"2026-09-01T17:10:00Z","closed_time":"2026-08-31T20:43:51.340000Z","volume":null,"volume_24hr":null,"prob_24h_change":0.6,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-31T20:45:46.915379Z","fetched_at":"2026-08-31T20:45:46.915379Z","added_at":"2026-08-28T13:42:48.630648Z","url":"https://www.gemini.com/predictions/TENNIS-ATPUSO-20260830-ARN-DUC/matteo-arnaldi-vs-james-duckworth","event_title":"Matteo Arnaldi vs James Duckworth","chart_24h":[0.4,0.4,0.4,0.39,0.38,0.22,0.65,0.61,0.6,1.0]},{"source":"gemini","id":"219618-527129","event_id":"219618","slug":"GEMI-TENNIS-ATPUSO-20260830-ARN-DUC-ARN","question":"Matteo Arnaldi","group_item_title":"Matteo Arnaldi","description":"This market resolves to Yes if Matteo Arnaldi wins the tennis match between Matteo Arnaldi and James Duckworth originally scheduled for August 30, 2026 at 11:00 AM 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_1078aa92-c5fe-42cb-9491-466335816650.pdf)","image":"https://images.ctfassets.net/jg6lo9a2ukvr/5mldNlYRCoRGpCHAIpiPMh/335a76cdd66837574b56d48284d29974/011-italy.png","icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.0,1.0],"probability":0.0,"spread":0.05,"active":false,"closed":true,"start_date":"2026-08-31T05:00:00Z","end_date":"2026-09-01T17:10:00Z","closed_time":"2026-08-31T20:43:51.559000Z","volume":null,"volume_24hr":null,"prob_24h_change":-0.61,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-31T20:45:46.915379Z","fetched_at":"2026-08-31T20:45:46.915379Z","added_at":"2026-08-28T13:42:48.630648Z","url":"https://www.gemini.com/predictions/TENNIS-ATPUSO-20260830-ARN-DUC/matteo-arnaldi-vs-james-duckworth","event_title":"Matteo Arnaldi vs James Duckworth","chart_24h":[0.61,0.62,0.62,0.63,0.64,0.63,0.62,0.63,0.62,0.65,0.82,0.38,0.44,0.43,0.0]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/gemini/219618","as_of":"2026-08-31T23:28:11.580289Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Gemini): \"Matteo Arnaldi vs James Duckworth\" — top market at 100% probability across 2 outcomes","source_url":null}}