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ATPCHALLENGER·Sun 8:00 AM ET

Hugo Gaston vs Jan Choinski

Jan Choinski is the current favorite at $0.60 ask on Kalshi and $0.61 ask on Polymarket — an implied ≈61% chance. Prices as of 03:09 UTC on Jul 12, 2026, delayed about five minutes. Source markets: Kalshi · Polymarket. Resolution follows each venue's own market terms.

Curious how long a gap like this stays open? We measured it.

Hugo Gaston

ATPCHALLENGER

Sun 8:00 AM ET

Jan Choinski
38%44%8:15 PM8:59 PM9:43 PM10:25 PM11:05 PM42¢40¢

Moneyline

Hugo Gaston2¢ gap
Kalshi42¢Polymarket40¢
Jan Choinski1¢ gap
Kalshi60¢Polymarket61¢

Prices delayed about five minutes. Each venue's best ask per outcome; Kalshi asks are derived from its NO bids (ask = $1 minus the bid). Kalshi volume counts contracts, Polymarket volume is in dollars. Real-time prices and the full depth ladder are available via the WebSocket stream with an API key. Feed reference DINO-XKQZ7-9182.