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Another sports betting controversy has hit professional sports, this time in mixed martial arts.
UFC cut fighter Isaac Dulgaryan on Monday, according to multiple reports, which came two days after a first-round submission loss to Yadier del Valle at Fight Night in Las Vegas.
“Like many professional sports organizations, the UFC partners with an independent betting integrity service to monitor betting activity at our events,” the promotion told The. New York Post in the statement. “Our betting integrity partner, IC360, tracks bets on every UFC event and conducts a thorough fact check surrounding the Dulgaryan vs. del Valle fight on Saturday, November 1st. “We take these allegations very seriously and, along 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 naked choke against Isaac Dulgaryan in a featherweight bout during UFC Fight Night at UFC APEX on November 1, 2025 in Las Vegas, Nevada. (Chris Unger/Zuffa LLC)
Unusual bookmaker activity was noted for the Bulgarian fight. Dulgaryan, who is now 7-2 in his professional UFC career, was a -250 favorite, but the line moved sharply to -154 before the fight.
Several bookmakers noted the unusual activity and stopped taking bets on it before the first round bell rang. Sportsbook Caesars even offered refunds to anyone who bet on Dulgarian.
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“Mobile customers with losing bets on the Dulgarian UFC fight will receive a cash credit within 24 hours (singles) or within 24 hours of the last leg being determined (Parlay/SGP/Super Parlay) if that bet won without that leg being included,” Caesars Sportsbook wrote on X.

(L-R) Christian Rodriguez punches Isaac Dulgaryan in their featherweight bout during UFC Fight Night 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” about the fight.
“We are working with our integrity monitors and will provide updates to customers as they become available.
Dulgaryan, 29 years old, lost on serve, but commentators Daniel Cormier and Michael Chiesa were puzzled by what was going on, as they called Del Valle's finish a “white belt thing”, believing it wasn't the hardest thing.
What makes Dulgaryan's situation more interesting are his comments about his belief that fighters should receive a discount on bets on fights.

Isaac Dulgaryan returns to his corner after the first round of his featherweight bout against Christian Rodriguez during UFC Fight Night at UFC APEX on March 16, 2024 in Las Vegas, Nevada. (Jeff Bottari/Zuffa LLC)
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“I said, 'Don't bet on me unless you pay me some percentage.' I do all the work, that’s how I feel about it,” Dulgarian. told MMA Junkie. “…If you're betting on me, I want a piece of it.”
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