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Sportsbooks Refund Wagers After Unusual Line Swings Precede Del Valle’s UFC Vegas 110 Submission

Calls for an investigation persist as reports of federal warnings remain unconfirmed.

Overview

  • Yadier del Valle defeated Isaac Dulgarian by first-round rear-naked choke at 3:41 at the UFC APEX in Las Vegas.
  • In the hours before the fight, Dulgarian’s odds narrowed from roughly -240 to about -160, and a round-one finish prop fell from around +850 to +475.
  • DraftKings and other operators limited betting markets during the volatility, and Caesars and William Hill later announced refunds or credits to losing bettors on the bout.
  • UFC analyst Michael Chiesa harshly criticized Dulgarian’s defense on the post-fight show, calling the effort an “F-” and “amateur.”
  • Scrutiny has been heightened by Dulgarian’s past link to banned coach James Krause, while claims of FBI alerts to the UFC remain unverified by the promotion or regulators.