{"source":"kalshi","id":"KXGRANDSLAM-JSIN26","ticker":"KXGRANDSLAM-JSIN26","slug":"KXGRANDSLAM-JSIN26","title":"Jannik Sinner: Grand Slam wins in 2026","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-02-10T15:00:00Z","end_date":"2026-09-29T14:00:00Z","closed_time":null,"volume":93930.91,"volume_24hr":1929.1299999999999,"volume_24h_change":null,"normalized_vol_24hr":18.96050262451172,"normalized_volume":34.04207229614258,"liquidity":null,"open_interest":50699.53,"categories":["Sports"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"1+ Grand Slam 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