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ATPCHALLENGER·Tue 12:30 PM ET

Stefan Kozlov vs Yi Zhou

Yi Zhou is the current favorite at $0.61 ask on Kalshi and $0.59 ask on Polymarket — an implied ≈60% chance. Prices as of 09:46 UTC on Jul 14, 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.

Stefan Kozlov

ATPCHALLENGER

Tue 12:30 PM ET

Yi Zhou
40%42%44%12:47 AM1:05 AM1:22 AM1:39 AM1:50 AM41¢43¢

Moneyline

Stefan Kozlov2¢ gap
Kalshi41¢Polymarket43¢
Yi Zhou2¢ gap
Kalshi61¢Polymarket59¢

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.