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ATPCHALLENGER·Tue 4:00 AM ET

Antoine Ghibaudo vs Luca Castelnuovo

Antoine Ghibaudo is the current favorite at $0.65 ask on Kalshi and $0.64 ask on Polymarket — an implied ≈65% 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.

Antoine Ghibaudo

ATPCHALLENGER

Tue 4:00 AM ET

Luca Castelnuovo
62%66%68%70%5:11 PM5:28 PM5:46 PM6:03 PM6:19 PM65¢64¢

Moneyline

Antoine Ghibaudo1¢ gap
Kalshi65¢Polymarket64¢
Luca Castelnuovo
Kalshi36¢Polymarket36¢

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.