{"source":"gemini","id":"96978","ticker":"ATPGS26","slug":"who-will-win-an-atp-grand-slam-this-year","title":"Who will win an ATP Grand Slam this year?","description":"Who will win an ATP Grand Slam this year?","image":"https://assets.gemini.com/predictions/images/tennis_test_02_42aacd7e-073f-453c-a9a2-7f09d07bbc38.jpg","icon":null,"active":true,"closed":false,"start_date":"2026-06-18T17:51:25.423000Z","end_date":"2027-01-01T23:59:59Z","closed_time":null,"volume":2645.0,"volume_24hr":2425.0,"volume_24h_change":null,"normalized_vol_24hr":46.64813232421875,"normalized_volume":40.91355514526367,"liquidity":null,"open_interest":null,"categories":["Sports"],"tags":["Tennis"],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Karen Khachanov","top_outcome_probability":0.45,"top_outcome_prob_24h_change":-0.08000000000000002,"top_outcome_volume_24h_change":null,"updated_at":"2026-08-11T01:47:43.222573Z","fetched_at":"2026-08-11T01:47:43.222573Z","added_at":"2026-06-18T17:52:40.701029Z","url":"https://www.gemini.com/predictions/ATPGS26/who-will-win-an-atp-grand-slam-this-year","chart_24h":[150.0,350.0,825.0,2425.0],"markets":[{"source":"gemini","id":"96978-287357","event_id":"96978","slug":"GEMI-ATPGS26-SINNER","question":"Jannik Sinner","group_item_title":"Jannik Sinner","description":"Resolves Yes if Jannik Sinner wins a tennis major (the Australian Open, the U.S. Open, the French Open, or Wimbledon) before Dec 31, 2026. Outcome verified from [ATP](https://www.atptour.com/), [ESPN](https://www.espn.com/), [The New York Times](https://www.nytimes.com/), [the Associated Press](https://apnews.com/), and [Reuters](https://www.reuters.com/).\nView the full [rules](https://cdn.builder.io/o/assets%2F1b77ce3a269a43e985e77f3d65f715ba%2Fc2d5e4e082ad4474aed8dc47ce46c601?alt=media&token=87c8f8b7-0646-4105-bb60-6ee4307ce404&apiKey=1b77ce3a269a43e985e77f3d65f715ba).","image":"https://assets.gemini.com/predictions/images/011-italy_4a6c2403-a2a7-4f70-81bc-399a77d1f272.avif","icon":null,"outcomes":["Yes","No"],"outcome_prices":[1.0,0.0],"probability":1.0,"spread":0.17,"active":false,"closed":true,"start_date":"2026-01-01T00:00:00Z","end_date":"2027-01-01T23:59:59Z","closed_time":"2026-07-13T14:37:40.571000Z","volume":null,"volume_24hr":null,"prob_24h_change":null,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-07-14T14:38:41.676255Z","fetched_at":"2026-07-13T14:51:05.816916Z","added_at":"2026-06-18T17:52:40.909721Z","url":"https://www.gemini.com/predictions/ATPGS26/who-will-win-an-atp-grand-slam-this-year","event_title":"Who will win an ATP Grand Slam this year?","chart_24h":null},{"source":"gemini","id":"96978-287365","event_id":"96978","slug":"GEMI-ATPGS26-KHACHANOV","question":"Karen Khachanov","group_item_title":"Karen Khachanov","description":"Resolves Yes if Karen Khachanov wins a tennis major (the Australian Open, the U.S. Open, the French Open, or Wimbledon) before Dec 31, 2026. Outcome verified from [ATP](https://www.atptour.com/), [ESPN](https://www.espn.com/), [The New York Times](https://www.nytimes.com/), [the Associated Press](https://apnews.com/), and [Reuters](https://www.reuters.com/).\nView the full [rules](https://cdn.builder.io/o/assets%2F1b77ce3a269a43e985e77f3d65f715ba%2Fc2d5e4e082ad4474aed8dc47ce46c601?alt=media&token=87c8f8b7-0646-4105-bb60-6ee4307ce404&apiKey=1b77ce3a269a43e985e77f3d65f715ba).","image":"https://assets.gemini.com/predictions/images/046-united-nations_b725f955-e805-4791-b991-fbe8bf417633.avif","icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.45,0.59],"probability":0.45,"spread":0.04,"active":true,"closed":false,"start_date":"2026-01-01T00:00:00Z","end_date":"2027-01-01T23:59:59Z","closed_time":null,"volume":null,"volume_24hr":null,"prob_24h_change":-0.08000000000000002,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-11T02:08:48.362640Z","fetched_at":"2026-08-11T02:08:32.288681Z","added_at":"2026-06-18T17:52:40.909721Z","url":"https://www.gemini.com/predictions/ATPGS26/who-will-win-an-atp-grand-slam-this-year","event_title":"Who will win an ATP Grand Slam this year?","chart_24h":[0.53,0.53,0.38,0.37,0.46,0.45]},{"source":"gemini","id":"96978-287366","event_id":"96978","slug":"GEMI-ATPGS26-MUSETTI","question":"Lorenzo Musetti","group_item_title":"Lorenzo Musetti","description":"Resolves Yes if Lorenzo Musetti wins a tennis major (the Australian Open, the U.S. Open, the French Open, or Wimbledon) before Dec 31, 2026. Outcome verified from [ATP](https://www.atptour.com/), [ESPN](https://www.espn.com/), [The New York Times](https://www.nytimes.com/), [the Associated Press](https://apnews.com/), and [Reuters](https://www.reuters.com/).\nView the full [rules](https://cdn.builder.io/o/assets%2F1b77ce3a269a43e985e77f3d65f715ba%2Fc2d5e4e082ad4474aed8dc47ce46c601?alt=media&token=87c8f8b7-0646-4105-bb60-6ee4307ce404&apiKey=1b77ce3a269a43e985e77f3d65f715ba).","image":"https://assets.gemini.com/predictions/images/011-italy_c4b2876d-634a-428c-b764-f9e1ed2df129.avif","icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.42,0.62],"probability":0.42,"spread":0.04,"active":true,"closed":false,"start_date":"2026-01-01T00:00:00Z","end_date":"2027-01-01T23:59:59Z","closed_time":null,"volume":null,"volume_24hr":null,"prob_24h_change":0.03999999999999998,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-11T02:08:48.362640Z","fetched_at":"2026-08-11T02:08:32.288681Z","added_at":"2026-06-18T17:52:40.909721Z","url":"https://www.gemini.com/predictions/ATPGS26/who-will-win-an-atp-grand-slam-this-year","event_title":"Who will win an ATP Grand Slam this year?","chart_24h":[0.38,0.44,0.44,0.43,0.42]},{"source":"gemini","id":"96978-287356","event_id":"96978","slug":"GEMI-ATPGS26-DJOKOVIC","question":"Novak Djokovic","group_item_title":"Novak Djokovic","description":"Resolves Yes if Novak Djokovic wins a tennis major (the Australian Open, the U.S. Open, the French Open, or Wimbledon) before Dec 31, 2026. Outcome verified from [ATP](https://www.atptour.com/), [ESPN](https://www.espn.com/), [The New York Times](https://www.nytimes.com/), [the Associated Press](https://apnews.com/), and [Reuters](https://www.reuters.com/).\nView the full [rules](https://cdn.builder.io/o/assets%2F1b77ce3a269a43e985e77f3d65f715ba%2Fc2d5e4e082ad4474aed8dc47ce46c601?alt=media&token=87c8f8b7-0646-4105-bb60-6ee4307ce404&apiKey=1b77ce3a269a43e985e77f3d65f715ba).","image":"https://assets.gemini.com/predictions/images/035-serbia_7161e45e-7f66-499e-bc7a-9c530de41afd.avif","icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.4,0.6],"probability":0.4,"spread":0.01,"active":true,"closed":false,"start_date":"2026-01-01T00:00:00Z","end_date":"2027-01-01T23:59:59Z","closed_time":null,"volume":null,"volume_24hr":null,"prob_24h_change":0.31000000000000005,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-11T02:29:33.222491Z","fetched_at":"2026-08-11T02:29:16.056273Z","added_at":"2026-06-18T17:52:40.909721Z","url":"https://www.gemini.com/predictions/ATPGS26/who-will-win-an-atp-grand-slam-this-year","event_title":"Who will win an ATP Grand Slam this year?","chart_24h":[0.09,0.09,0.09,0.12,0.12,0.09,0.09,0.12,0.13,0.13,0.07,0.11,0.4]},{"source":"gemini","id":"96978-287364","event_id":"96978","slug":"GEMI-ATPGS26-BUBLIK","question":"Alexander Bublik","group_item_title":"Alexander Bublik","description":"Resolves Yes if Alexander Bublik wins a tennis major (the Australian Open, the U.S. Open, the French Open, or Wimbledon) before Dec 31, 2026. Outcome verified from [ATP](https://www.atptour.com/), [ESPN](https://www.espn.com/), [The New York Times](https://www.nytimes.com/), [the Associated Press](https://apnews.com/), and [Reuters](https://www.reuters.com/).\nView the full [rules](https://cdn.builder.io/o/assets%2F1b77ce3a269a43e985e77f3d65f715ba%2Fc2d5e4e082ad4474aed8dc47ce46c601?alt=media&token=87c8f8b7-0646-4105-bb60-6ee4307ce404&apiKey=1b77ce3a269a43e985e77f3d65f715ba).","image":"https://assets.gemini.com/predictions/images/034-kazakhstan_cde36584-fed4-4f21-810b-b12fa9e8b777.avif","icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.36,0.68],"probability":0.36,"spread":0.04,"active":true,"closed":false,"start_date":"2026-01-01T00:00:00Z","end_date":"2027-01-01T23:59:59Z","closed_time":null,"volume":null,"volume_24hr":null,"prob_24h_change":-0.17000000000000004,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-11T01:48:01.329259Z","fetched_at":"2026-08-11T01:47:43.774815Z","added_at":"2026-06-18T17:52:40.909721Z","url":"https://www.gemini.com/predictions/ATPGS26/who-will-win-an-atp-grand-slam-this-year","event_title":"Who will win an ATP Grand Slam this year?","chart_24h":[0.53,0.53,0.39,0.37,0.36]},{"source":"gemini","id":"96978-287358","event_id":"96978","slug":"GEMI-ATPGS26-SHELTON","question":"Ben Shelton","group_item_title":"Ben Shelton","description":"Resolves Yes if Ben Shelton wins a tennis major (the Australian Open, the U.S. Open, the French Open, or Wimbledon) before Dec 31, 2026. Outcome verified from [ATP](https://www.atptour.com/), [ESPN](https://www.espn.com/), [The New York Times](https://www.nytimes.com/), [the Associated Press](https://apnews.com/), and [Reuters](https://www.reuters.com/).\nView the full [rules](https://cdn.builder.io/o/assets%2F1b77ce3a269a43e985e77f3d65f715ba%2Fc2d5e4e082ad4474aed8dc47ce46c601?alt=media&token=87c8f8b7-0646-4105-bb60-6ee4307ce404&apiKey=1b77ce3a269a43e985e77f3d65f715ba).","image":"https://assets.gemini.com/predictions/images/153-united-states-of-america_a5dbde34-5461-4553-bc90-6e77817a0e3f.avif","icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.34,0.66],"probability":0.34,"spread":0.04,"active":true,"closed":false,"start_date":"2026-01-01T00:00:00Z","end_date":"2027-01-01T23:59:59Z","closed_time":null,"volume":null,"volume_24hr":null,"prob_24h_change":0.30000000000000004,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-11T02:29:33.222491Z","fetched_at":"2026-08-11T02:29:16.056273Z","added_at":"2026-06-18T17:52:40.909721Z","url":"https://www.gemini.com/predictions/ATPGS26/who-will-win-an-atp-grand-slam-this-year","event_title":"Who will win an ATP Grand Slam this year?","chart_24h":[0.04,0.24,0.04,0.34,0.04,0.34,0.09,0.34]},{"source":"gemini","id":"96978-287363","event_id":"96978","slug":"GEMI-ATPGS26-DEMINAUR","question":"Alex de Minaur","group_item_title":"Alex de Minaur","description":"Resolves Yes if Alex de Minaur wins a tennis major (the Australian Open, the U.S. Open, the French Open, or Wimbledon) before Dec 31, 2026. Outcome verified from [ATP](https://www.atptour.com/), [ESPN](https://www.espn.com/), [The New York Times](https://www.nytimes.com/), [the Associated Press](https://apnews.com/), and [Reuters](https://www.reuters.com/).\nView the full [rules](https://cdn.builder.io/o/assets%2F1b77ce3a269a43e985e77f3d65f715ba%2Fc2d5e4e082ad4474aed8dc47ce46c601?alt=media&token=87c8f8b7-0646-4105-bb60-6ee4307ce404&apiKey=1b77ce3a269a43e985e77f3d65f715ba).","image":"https://assets.gemini.com/predictions/images/130-australia_49a281d7-184b-4303-bf0d-27bb1fe925c6.avif","icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.18,0.86],"probability":0.18,"spread":0.04,"active":true,"closed":false,"start_date":"2026-01-01T00:00:00Z","end_date":"2027-01-01T23:59:59Z","closed_time":null,"volume":null,"volume_24hr":null,"prob_24h_change":0.13999999999999999,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-11T02:08:48.362640Z","fetched_at":"2026-08-11T02:08:32.288681Z","added_at":"2026-06-18T17:52:40.909721Z","url":"https://www.gemini.com/predictions/ATPGS26/who-will-win-an-atp-grand-slam-this-year","event_title":"Who will win an ATP Grand Slam this year?","chart_24h":[0.04,0.04,0.17,0.2,0.19,0.18]},{"source":"gemini","id":"96978-287360","event_id":"96978","slug":"GEMI-ATPGS26-FRITZ","question":"Taylor Fritz","group_item_title":"Taylor Fritz","description":"Resolves Yes if Taylor Fritz wins a tennis major (the Australian Open, the U.S. Open, the French Open, or Wimbledon) before Dec 31, 2026. Outcome verified from [ATP](https://www.atptour.com/), [ESPN](https://www.espn.com/), [The New York Times](https://www.nytimes.com/), [the Associated Press](https://apnews.com/), and [Reuters](https://www.reuters.com/).\nView the full [rules](https://cdn.builder.io/o/assets%2F1b77ce3a269a43e985e77f3d65f715ba%2Fc2d5e4e082ad4474aed8dc47ce46c601?alt=media&token=87c8f8b7-0646-4105-bb60-6ee4307ce404&apiKey=1b77ce3a269a43e985e77f3d65f715ba).","image":"https://assets.gemini.com/predictions/images/153-united-states-of-america_89ba8ea2-da81-4210-a0af-4ee21939b4fa.avif","icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.07,0.97],"probability":0.07,"spread":0.04,"active":true,"closed":false,"start_date":"2026-01-01T00:00:00Z","end_date":"2027-01-01T23:59:59Z","closed_time":null,"volume":null,"volume_24hr":null,"prob_24h_change":-0.009999999999999995,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-11T00:24:52.733351Z","fetched_at":"2026-08-11T00:24:38.458364Z","added_at":"2026-06-18T17:52:40.909721Z","url":"https://www.gemini.com/predictions/ATPGS26/who-will-win-an-atp-grand-slam-this-year","event_title":"Who will win an ATP Grand Slam this year?","chart_24h":[0.08,0.05,0.07]},{"source":"gemini","id":"96978-287359","event_id":"96978","slug":"GEMI-ATPGS26-MEDVEDEV","question":"Daniil Medvedev","group_item_title":"Daniil Medvedev","description":"Resolves Yes if Daniil Medvedev wins a tennis major (the Australian Open, the U.S. Open, the French Open, or Wimbledon) before Dec 31, 2026. Outcome verified from [ATP](https://www.atptour.com/), [ESPN](https://www.espn.com/), [The New York Times](https://www.nytimes.com/), [the Associated Press](https://apnews.com/), and [Reuters](https://www.reuters.com/).\nView the full [rules](https://cdn.builder.io/o/assets%2F1b77ce3a269a43e985e77f3d65f715ba%2Fc2d5e4e082ad4474aed8dc47ce46c601?alt=media&token=87c8f8b7-0646-4105-bb60-6ee4307ce404&apiKey=1b77ce3a269a43e985e77f3d65f715ba).","image":"https://assets.gemini.com/predictions/images/046-united-nations_bb9599d2-791c-44d1-bd44-a24c8d427e79.avif","icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.06,0.94],"probability":0.06,"spread":0.04,"active":true,"closed":false,"start_date":"2026-01-01T00:00:00Z","end_date":"2027-01-01T23:59:59Z","closed_time":null,"volume":null,"volume_24hr":null,"prob_24h_change":0.009999999999999995,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-11T03:31:50.888614Z","fetched_at":"2026-08-11T03:31:39.805116Z","added_at":"2026-06-18T17:52:40.909721Z","url":"https://www.gemini.com/predictions/ATPGS26/who-will-win-an-atp-grand-slam-this-year","event_title":"Who will win an ATP Grand Slam this year?","chart_24h":[0.05,0.06,0.05,0.05,0.06,0.06,0.06,0.05,0.06,0.05,0.06,0.06]},{"source":"gemini","id":"96978-287355","event_id":"96978","slug":"GEMI-ATPGS26-TIAFOE","question":"Frances Tiafoe","group_item_title":"Frances Tiafoe","description":"Resolves Yes if Frances Tiafoe wins a tennis major (the Australian Open, the U.S. Open, the French Open, or Wimbledon) before Dec 31, 2026. Outcome verified from [ATP](https://www.atptour.com/), [ESPN](https://www.espn.com/), [The New York Times](https://www.nytimes.com/), [the Associated Press](https://apnews.com/), and [Reuters](https://www.reuters.com/).\nView the full [rules](https://cdn.builder.io/o/assets%2F1b77ce3a269a43e985e77f3d65f715ba%2Fc2d5e4e082ad4474aed8dc47ce46c601?alt=media&token=87c8f8b7-0646-4105-bb60-6ee4307ce404&apiKey=1b77ce3a269a43e985e77f3d65f715ba).","image":"https://assets.gemini.com/predictions/images/153-united-states-of-america_cb6ba99c-a9b2-45d9-ab52-9b54efa076e3.avif","icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.04,0.99],"probability":0.04,"spread":0.03,"active":true,"closed":false,"start_date":"2026-01-01T00:00:00Z","end_date":"2027-01-01T23:59:59Z","closed_time":null,"volume":null,"volume_24hr":null,"prob_24h_change":0.0,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-11T02:08:32.288681Z","fetched_at":"2026-08-11T02:08:32.288681Z","added_at":"2026-06-18T17:52:40.909721Z","url":"https://www.gemini.com/predictions/ATPGS26/who-will-win-an-atp-grand-slam-this-year","event_title":"Who will win an ATP Grand Slam this year?","chart_24h":[0.04,0.04,0.04,0.18,0.04,0.04]},{"source":"gemini","id":"96978-287362","event_id":"96978","slug":"GEMI-ATPGS26-AUGERALIASSIME","question":"Felix Auger-Aliassime","group_item_title":"Felix Auger-Aliassime","description":"Resolves Yes if Felix Auger-Aliassime wins a tennis major (the Australian Open, the U.S. Open, the French Open, or Wimbledon) before Dec 31, 2026. Outcome verified from [ATP](https://www.atptour.com/), [ESPN](https://www.espn.com/), [The New York Times](https://www.nytimes.com/), [the Associated Press](https://apnews.com/), and [Reuters](https://www.reuters.com/).\nView the full [rules](https://cdn.builder.io/o/assets%2F1b77ce3a269a43e985e77f3d65f715ba%2Fc2d5e4e082ad4474aed8dc47ce46c601?alt=media&token=87c8f8b7-0646-4105-bb60-6ee4307ce404&apiKey=1b77ce3a269a43e985e77f3d65f715ba).","image":"https://assets.gemini.com/predictions/images/206-canada_9ad968b1-99fb-4e4b-8930-1b9452cf2ea8.avif","icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.04,0.99],"probability":0.04,"spread":0.03,"active":true,"closed":false,"start_date":"2026-01-01T00:00:00Z","end_date":"2027-01-01T23:59:59Z","closed_time":null,"volume":null,"volume_24hr":null,"prob_24h_change":-0.010000000000000002,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-11T03:11:11.314716Z","fetched_at":"2026-08-11T03:10:52.266940Z","added_at":"2026-06-18T17:52:40.909721Z","url":"https://www.gemini.com/predictions/ATPGS26/who-will-win-an-atp-grand-slam-this-year","event_title":"Who will win an ATP Grand Slam this year?","chart_24h":[0.05,0.22,0.05,0.04,0.05,0.04,0.23,0.04]},{"source":"gemini","id":"96978-287354","event_id":"96978","slug":"GEMI-ATPGS26-RUUD","question":"Casper Ruud","group_item_title":"Casper Ruud","description":"Resolves Yes if Casper Ruud wins a tennis major (the Australian Open, the U.S. Open, the French Open, or Wimbledon) before Dec 31, 2026. Outcome verified from [ATP](https://www.atptour.com/), [ESPN](https://www.espn.com/), [The New York Times](https://www.nytimes.com/), [the Associated Press](https://apnews.com/), and [Reuters](https://www.reuters.com/).\nView the full [rules](https://cdn.builder.io/o/assets%2F1b77ce3a269a43e985e77f3d65f715ba%2Fc2d5e4e082ad4474aed8dc47ce46c601?alt=media&token=87c8f8b7-0646-4105-bb60-6ee4307ce404&apiKey=1b77ce3a269a43e985e77f3d65f715ba).","image":"https://assets.gemini.com/predictions/images/058-norway_68df8925-4791-4144-9796-35769d9bb81c.avif","icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.03,0.99],"probability":0.03,"spread":0.02,"active":true,"closed":false,"start_date":"2026-01-01T00:00:00Z","end_date":"2027-01-01T23:59:59Z","closed_time":null,"volume":null,"volume_24hr":null,"prob_24h_change":0.0,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-11T03:11:11.314716Z","fetched_at":"2026-08-11T03:10:52.266940Z","added_at":"2026-06-18T17:52:40.909721Z","url":"https://www.gemini.com/predictions/ATPGS26/who-will-win-an-atp-grand-slam-this-year","event_title":"Who will win an ATP Grand Slam this year?","chart_24h":[0.03,0.03,0.03,0.31,0.03,0.05,0.03,0.32,0.03]},{"source":"gemini","id":"96978-287361","event_id":"96978","slug":"GEMI-ATPGS26-DRAPER","question":"Jack Draper","group_item_title":"Jack Draper","description":"Resolves Yes if Jack Draper wins a tennis major (the Australian Open, the U.S. Open, the French Open, or Wimbledon) before Dec 31, 2026. Outcome verified from [ATP](https://www.atptour.com/), [ESPN](https://www.espn.com/), [The New York Times](https://www.nytimes.com/), [the Associated Press](https://apnews.com/), and [Reuters](https://www.reuters.com/).\nView the full [rules](https://cdn.builder.io/o/assets%2F1b77ce3a269a43e985e77f3d65f715ba%2Fc2d5e4e082ad4474aed8dc47ce46c601?alt=media&token=87c8f8b7-0646-4105-bb60-6ee4307ce404&apiKey=1b77ce3a269a43e985e77f3d65f715ba).","image":"https://assets.gemini.com/predictions/images/262-united-kingdom_1223eed0-810f-48e1-bca7-8a905e1777f9.avif","icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.03,0.99],"probability":0.03,"spread":0.02,"active":true,"closed":false,"start_date":"2026-01-01T00:00:00Z","end_date":"2027-01-01T23:59:59Z","closed_time":null,"volume":null,"volume_24hr":null,"prob_24h_change":0.0,"volume_24h_change":null,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-11T03:11:11.314716Z","fetched_at":"2026-08-11T03:10:52.266940Z","added_at":"2026-06-18T17:52:40.909721Z","url":"https://www.gemini.com/predictions/ATPGS26/who-will-win-an-atp-grand-slam-this-year","event_title":"Who will win an ATP Grand Slam this year?","chart_24h":[0.03,0.03,0.45,0.03,0.05,0.03,0.43,0.03]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/gemini/96978","as_of":"2026-08-11T05:13:26.475215Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Gemini): \"Who will win an ATP Grand Slam this year?\" — top market at 100% probability across 13 outcomes","source_url":null}}