Sportsbooks Refund Bets After Del Valle’s First-Round Submission Triggers UFC Vegas 110 Betting Scrutiny

Two major sportsbooks issued credits following dramatic pre-fight line swings that raised integrity questions.

Overview

Yadier del Valle defeated Isaac Dulgarian by rear-naked choke at 3:41 of Round 1 at the UFC Apex, improving to 10-0 overall and 2-0 in the UFC as Dulgarian suffered his first professional finish.
Dulgarian’s price reportedly tightened from about -240 to roughly -160 shortly before the bout, while a first-round finish prop moved from about +850 to +475.
DraftKings was reported to have locked the fight from additional bets, and some books pulled related props as the late action hit the market.
Caesars Sportsbook and William Hill said they would refund losing wagers on the fight, citing the unusual line movement flagged by bettors.
Calls for an integrity review surged across the MMA community, with no formal inquiry announced by the NSAC or UFC; coverage also noted Dulgarian previously trained under banned coach James Krause before relocating to Factory X.