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ATPCHALLENGER·Tue 6:00 AM ET

Denis Yevseyev vs Guy Den Ouden

Guy Den Ouden is the current favorite at $0.88 ask on Kalshi and $0.86 ask on Polymarket — an implied ≈87% chance. Prices as of 04:07 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.

Denis Yevseyev

ATPCHALLENGER

Tue 6:00 AM ET

Guy Den Ouden
12%13%16%17%6:01 PM6:07 PM6:13 PM6:18 PM6:24 PM14¢15¢

Moneyline

Denis Yevseyev1¢ gap
Kalshi14¢Polymarket15¢
Guy Den Ouden2¢ gap
Kalshi88¢Polymarket86¢

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.