{"source":"kalshi","id":"KXGRANDSLAMJFONSECA-26","ticker":"KXGRANDSLAMJFONSECA-26","slug":"KXGRANDSLAMJFONSECA-26","title":"Joao Fonseca to Win a Major in 2026","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2025-12-17T17:00:00Z","end_date":"2027-01-08T15:00:00Z","closed_time":null,"volume":18740.27,"volume_24hr":2062.32,"volume_24h_change":null,"normalized_vol_24hr":20.18913459777832,"normalized_volume":26.11621856689453,"liquidity":null,"open_interest":7490.03,"categories":["Sports"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Joao Fonseca","top_outcome_probability":0.23,"top_outcome_prob_24h_change":0.1,"top_outcome_volume_24h_change":1840.46,"updated_at":"2026-05-30T21:26:18.558996Z","fetched_at":"2026-05-30T21:26:18.558996Z","added_at":null,"url":"https://kalshi.com/markets/kxgrandslamjfonseca/joao-fonseca-to-win-a-major-in-2026/kxgrandslamjfonseca-26","chart_24h":[221.86,1309.47,1381.97,2048.57,2131.16,2172.41,2070.13,2150.41,2114.16,2041.7],"markets":[{"source":"kalshi","id":"KXGRANDSLAMJFONSECA-26","event_id":"KXGRANDSLAMJFONSECA-26","slug":"KXGRANDSLAMJFONSECA-26","question":"Will Joao Fonseca win a major in 2026?","group_item_title":"Joao Fonseca","description":"If Joao Fonseca wins a tennis major (the Australian Open, the U.S. Open, the French Open, or Wimbledon) before Jan 1, 2027, then the market resolves to Yes.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.23,0.77],"probability":0.23,"spread":0.12000000000000001,"active":true,"closed":false,"start_date":"2025-12-17T17:00:00Z","end_date":"2027-01-08T15:00:00Z","closed_time":"2027-01-01T04:59:00Z","volume":18740.27,"volume_24hr":2062.32,"prob_24h_change":0.1,"volume_24h_change":1840.46,"normalized_vol_24hr":21.58530044555664,"normalized_volume":31.40740394592285,"liquidity":null,"categories":["Sports"],"updated_at":"2026-05-30T21:27:33.181367Z","fetched_at":"2026-05-30T21:26:18.679911Z","added_at":null,"url":"https://kalshi.com/markets/kxgrandslamjfonseca/joao-fonseca-to-win-a-major-in-2026/kxgrandslamjfonseca-26","event_title":"Joao Fonseca to Win a Major in 2026","chart_24h":[0.13,0.13,0.13,0.13,0.13,0.22,0.23,0.23,0.23,0.23,0.23,0.23]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXGRANDSLAMJFONSECA-26","as_of":"2026-05-30T21:44:03.334518Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Joao Fonseca to Win a Major in 2026\" — top market at 23% probability across 1 outcome","source_url":null}}