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ATPCHALLENGER·Mon 4:00 PM ET

Andres Martin vs Nicolas Arseneault

Andres Martin is the current favorite at $0.70 ask on Kalshi and $0.69 ask on Polymarket — an implied ≈70% chance. Prices as of 14:43 UTC on Jul 13, 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.

Andres Martin

ATPCHALLENGER

Mon 4:00 PM ET

Nicolas Arseneault
68%72%74%6:16 AM6:43 AM7:06 AM7:33 AM7:58 AM70¢69¢

Moneyline

Andres Martin1¢ gap
Kalshi70¢Polymarket69¢
Nicolas Arseneault
Kalshi32¢Polymarket32¢

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.