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ATPCHALLENGER·Tue 9:00 AM ET

Gerard Campana Lee vs Matteo Martineau

Gerard Campana Lee is the current favorite at $0.55 ask on Kalshi and $0.54 ask on Polymarket — an implied ≈55% chance. Prices as of 04:00 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.

Gerard Campana Lee

ATPCHALLENGER

Tue 9:00 AM ET

Matteo Martineau
52%56%8:19 PM8:34 PM8:49 PM9:00 PM9:11 PM55¢54¢

Moneyline

Gerard Campana Lee1¢ gap
Kalshi55¢Polymarket54¢
Matteo Martineau1¢ gap
Kalshi46¢Polymarket47¢

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.