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Another sports betting controversy has hit professional sports, this time in mixed martial arts.
The UFC cut fighter Isaac Dulgarian on Monday, two days after a first-round loss to Yadier del Valle at Fight Night in Las Vegas, according to multiple reports.
“Like many professional sports organizations, the UFC works with an independent betting integrity department to monitor betting activity at our events,” the promotion told the New York Post in a statement. “Our betting integrity partner, IC360, monitors betting on every UFC event and is conducting an in-depth review of the facts surrounding the Dulgarian vs. Del Valle fight on Saturday, November 1. We take these allegations very seriously, and with the health and safety of our fighters, nothing is more important than the integrity of our sport.”
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Yadier del Valle of Cuba secures a rear choke submission against Isaac Dulgarian in a featherweight bout during the UFC Fight Night event at UFC APEX on November 1, 2025 in Las Vegas, Nevada. (Chris Unger/Zuffa LLC)
Unusual betting activity has been reported for the Bulgarian’s fight. Dulgarian, who is now 7-2 in his professional UFC career, was a -250 favorite, but the line changed dramatically to -154 before the fight.
Several sportsbooks reported this unusual activity and stopped betting on it before the first round bell rang. Caesars Sportsbook even offered refunds to anyone betting on Dulgarian.
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“Mobile customers with losing bets on the Dulgarian UFC fight will receive a cash credit within 24 hours (single), or within 24 hours of the final stage (Parlay/SGP/Super Parlay) being determined if that bet won without that stage included,” Caesars Sportsbook posted on X.
(L-R) Christian Rodriguez punches Isaac Dulgarian in their featherweight bout during the UFC Fight Night event at UFC APEX on March 16, 2024 in Las Vegas, Nevada. (Jeff Bottari/Zuffa LLC)
DraftKings also told the Post that it was “aware of potential concerns” regarding the fight.
“We are working with our health monitors and will provide updates to customers as they become available.
Dulgarian, 29, lost by submission, but commentators Daniel Cormier and Michael Chiesa didn’t understand what was happening, as they called Del Valle’s finish “white belt stuff”, believing it wasn’t the most complicated stuff.
What makes Dulgarian’s situation more interesting are his comments about his belief that fighters should get a cut of the betting on fights.
Isaac Dulgarian returns to his corner after the first round of his featherweight fight against Christian Rodriguez during the UFC Fight Night event at UFC APEX on March 16, 2024 in Las Vegas, Nevada. (Jeff Bottari/Zuffa LLC)
“I said, ‘Don’t bet on me unless you pay me a percentage.’ I do all the work, that’s how I feel,” Dulgarian told MMA Junkie. “…If you bet on me, I want some.”
