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ATPCHALLENGER·Tue 4:30 AM ET

Jay Clarke vs Louis Wessels

Jay Clarke is the current favorite at $0.77 ask on Kalshi and $0.75 ask on Polymarket — an implied ≈76% chance. Prices as of 04:01 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.

Jay Clarke

ATPCHALLENGER

Tue 4:30 AM ET

Louis Wessels
74%76%78%4:49 PM4:55 PM5:01 PM5:05 PM5:11 PM77¢75¢

Moneyline

Jay Clarke2¢ gap
Kalshi77¢Polymarket75¢
Louis Wessels1¢ gap
Kalshi27¢Polymarket26¢

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.