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website.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.0215,0.9785],"probability":0.0215,"spread":0.039,"active":true,"closed":false,"start_date":"2026-06-16T19:20:07.845172Z","end_date":"2026-06-21T23:59:00Z","closed_time":null,"volume":89.0911,"volume_24hr":87.98,"prob_24h_change":-0.14350000000000002,"volume_24h_change":86.86890000000001,"normalized_vol_24hr":6.958871841430664,"normalized_volume":5.6151580810546875,"liquidity":1106.41282,"categories":["Sports"],"countries":[],"updated_at":"2026-06-20T15:50:24.170509Z","fetched_at":"2026-06-20T15:49:28.830718Z","added_at":"2026-06-16T19:37:56.873079Z","url":"https://polymarket.com/event/2026-uptspt-open-winner-nationality-20260616032234726/will-a-player-from-austria-win-the-2026-uptspt-open-20260616032242725","event_title":"2026 U.S. Open: Winner 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website.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.0205,0.9795],"probability":0.0205,"spread":0.037,"active":true,"closed":false,"start_date":"2026-06-16T19:16:42.124523Z","end_date":"2026-06-21T23:59:00Z","closed_time":null,"volume":89.0911,"volume_24hr":87.98,"prob_24h_change":-0.14450000000000002,"volume_24h_change":86.86890000000001,"normalized_vol_24hr":6.958871841430664,"normalized_volume":5.6151580810546875,"liquidity":1102.8726,"categories":["Sports"],"countries":[],"updated_at":"2026-06-20T15:34:37.306142Z","fetched_at":"2026-06-20T15:33:38.146338Z","added_at":"2026-06-16T19:37:56.873079Z","url":"https://polymarket.com/event/2026-uptspt-open-winner-nationality-20260616032234726/will-a-player-from-chile-win-the-2026-uptspt-open-20260616032242727","event_title":"2026 U.S. Open: Winner Nationality","chart_24h":[0.165,0.16,0.323,0.0295,0.0295,0.4625,0.0295,0.0295,0.472,0.257,0.0295,0.0295,0.0295,0.0925,0.0295,0.0295,0.121,0.0285,0.0195,0.0175,0.069,0.027,0.0205]},{"source":"polymarket","id":"2569917","event_id":"602045","slug":"will-a-player-from-iceland-win-the-2026-uptspt-open-20260616032242730","question":"Will a player from Iceland win the 2026 U.S. Open?","group_item_title":"Iceland","description":"This market will resolve according to the listed nationality of the 2026 US Open champion.\n\nIn the event of a tie, this market will resolve in favor of the nationality of the player whose listed last name comes first alphabetically.\n\nIf the 2026 US Open at Shinnecock Hills Golf Club is cancelled, postponed after July 5, 2026, 11:59 PM ET, or if a champion has not been declared within that timeframe, this market will resolve to \"Other\".\n\nThe primary resolution source will be the official results published by the US Open website.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.0205,0.9795],"probability":0.0205,"spread":0.037,"active":true,"closed":false,"start_date":"2026-06-16T19:00:02.293309Z","end_date":"2026-06-21T23:59:00Z","closed_time":null,"volume":89.0911,"volume_24hr":87.98,"prob_24h_change":-0.0045000000000000005,"volume_24h_change":86.86890000000001,"normalized_vol_24hr":6.958871841430664,"normalized_volume":5.6151580810546875,"liquidity":1191.70347,"categories":["Sports"],"countries":[],"updated_at":"2026-06-20T15:34:37.306142Z","fetched_at":"2026-06-20T15:33:38.146338Z","added_at":"2026-06-16T19:37:56.873079Z","url":"https://polymarket.com/event/2026-uptspt-open-winner-nationality-20260616032234726/will-a-player-from-iceland-win-the-2026-uptspt-open-20260616032242730","event_title":"2026 U.S. Open: Winner Nationality","chart_24h":[0.025,0.027,0.466,0.027,0.0275,0.4675,0.466,0.0275,0.2565,0.0275,0.0275,0.0275,0.0275,0.108,0.1085,0.0885,0.0225,0.019,0.0165,0.06,0.03,0.0205]},{"source":"polymarket","id":"2569901","event_id":"602045","slug":"will-a-player-from-norway-win-the-2026-uptspt-open-20260616032242714","question":"Will a player from Norway win the 2026 U.S. Open?","group_item_title":"Norway","description":"This market will resolve according to the listed nationality of the 2026 US Open champion.\n\nIn the event of a tie, this market will resolve in favor of the nationality of the player whose listed last name comes first alphabetically.\n\nIf the 2026 US Open at Shinnecock Hills Golf Club is cancelled, postponed after July 5, 2026, 11:59 PM ET, or if a champion has not been declared within that timeframe, this market will resolve to \"Other\".\n\nThe primary resolution source will be the official results published by the US Open website.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.02,0.98],"probability":0.02,"spread":0.036,"active":true,"closed":false,"start_date":"2026-06-16T18:54:54.139465Z","end_date":"2026-06-21T23:59:00Z","closed_time":null,"volume":89.0911,"volume_24hr":87.98,"prob_24h_change":-0.14500000000000002,"volume_24h_change":86.86890000000001,"normalized_vol_24hr":6.958871841430664,"normalized_volume":5.6151580810546875,"liquidity":1197.41328,"categories":["Sports"],"countries":[],"updated_at":"2026-06-20T15:50:24.170509Z","fetched_at":"2026-06-20T15:49:28.830718Z","added_at":"2026-06-16T19:37:56.873079Z","url":"https://polymarket.com/event/2026-uptspt-open-winner-nationality-20260616032234726/will-a-player-from-norway-win-the-2026-uptspt-open-20260616032242714","event_title":"2026 U.S. Open: Winner Nationality","chart_24h":[0.165,0.165,0.0395,0.04,0.0395,0.04,0.0395,0.0395,0.04,0.0395,0.434,0.04,0.109,0.0395,0.1115,0.1085,0.0725,0.0225,0.0195,0.0175,0.0275,0.0245,0.0215]},{"source":"polymarket","id":"2569905","event_id":"602045","slug":"will-a-player-from-the-republic-of-ireland-win-the-2026-uptspt-open-20260616032242718","question":"Will a player from the Republic of Ireland win the 2026 U.S. Open?","group_item_title":"Republic of Ireland","description":"This market will resolve according to the listed nationality of the 2026 US Open champion.\n\nIn the event of a tie, this market will resolve in favor of the nationality of the player whose listed last name comes first alphabetically.\n\nIf the 2026 US Open at Shinnecock Hills Golf Club is cancelled, postponed after July 5, 2026, 11:59 PM ET, or if a champion has not been declared within that timeframe, this market will resolve to \"Other\".\n\nThe primary resolution source will be the official results published by the US Open website.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.0165,0.9835],"probability":0.0165,"spread":0.027,"active":true,"closed":false,"start_date":"2026-06-16T18:37:06.367032Z","end_date":"2026-06-21T23:59:00Z","closed_time":null,"volume":89.0911,"volume_24hr":87.98,"prob_24h_change":-0.14350000000000002,"volume_24h_change":86.86890000000001,"normalized_vol_24hr":6.958871841430664,"normalized_volume":5.6151580810546875,"liquidity":823.37432,"categories":["Sports"],"countries":[],"updated_at":"2026-06-20T14:24:30.728597Z","fetched_at":"2026-06-20T14:23:37.401193Z","added_at":"2026-06-16T19:37:56.873079Z","url":"https://polymarket.com/event/2026-uptspt-open-winner-nationality-20260616032234726/will-a-player-from-the-republic-of-ireland-win-the-2026-uptspt-open-20260616032242718","event_title":"2026 U.S. Open: Winner 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website.","image":"","icon":"","outcomes":["Yes","No"],"outcome_prices":[0.5,0.5],"probability":0.5,"spread":1.0,"active":true,"closed":false,"start_date":"2026-06-16T19:04:49.526442Z","end_date":"2026-06-21T23:59:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"countries":[],"updated_at":"2026-06-19T23:49:35.927103Z","fetched_at":"2026-06-16T19:37:56.873079Z","added_at":"2026-06-16T19:37:56.873079Z","url":"https://polymarket.com/event/2026-uptspt-open-winner-nationality-20260616032234726/will-a-player-from-another-country-win-the-2026-uptspt-open-20260616032242732","event_title":"2026 U.S. Open: Winner Nationality","chart_24h":[0.5,0.5]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/polymarket/602045","as_of":"2026-06-20T15:55:34.898382Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"2026 U.S. Open: Winner Nationality\" — top market at 77% probability across 26 outcomes","source_url":null}}