Isaac Dulgarian #

Introduction #

Isaac Dulgarian is an American mixed martial artist who fought in the UFC’s featherweight division. He was released by the promotion on November 5, 2025 — barely 24 hours after he lost by first-round rear-naked choke to underdog Yadier Del Valle at UFC Vegas 110 — after a flood of suspicious betting activity on the fight triggered an integrity review. The UFC’s betting-integrity partner, IC360, flagged an unusual amount of wagering on Del Valle to win in the first round, and UFC president Dana White said the FBI was looking into the activity. The release ended Dulgarian’s UFC career over what the promotion described as a serious concern about the integrity of the bout.

Background Information #

Dulgarian built his career as a featherweight on the regional circuit before signing with the UFC. By 2025 he was an established UFC fighter scheduled against Del Valle at UFC Vegas 110 in Las Vegas. The fight drew little pre-fight attention as a mainstream event, but it became one of the more prominent betting-integrity cases in recent UFC history. The UFC works with an independent betting-integrity service to monitor wagering activity on its events; that partnership is what surfaced the irregular activity around the Dulgarian–Del Valle bout.

The Controversy or Incident That Led to Their Cancellation #

The fight took place on Saturday, November 1, 2025, at UFC Vegas 110. Dulgarian entered as a solid favorite, listed at roughly -250 to beat Del Valle as of Saturday morning. As the fight drew near, his odds slid sharply to around -170 to -130 — a large and rapid line move that indicates big money coming in. IC360 notified its clients, including the UFC, of a suspicious volume of wagers on Del Valle to win in the first round. In the fight, Dulgarian shot for a single takedown attempt at the start and did little else before Del Valle locked in a rear-naked choke at the 3:41 mark of the first round, cashing the underdog bets. Several sportsbooks closed UFC bets that night and later refunded or credited wagers on Dulgarian’s loss, with Caesars Sportsbook posting an update offering cash credits to mobile customers with losing bets.

Public Reaction and Consequences #

The fallout was swift. After the fight, betting lines froze and UFC-related wagers were pulled from the board. UFC president Dana White said on Tuesday that the FBI was “looking into everything that happened at the UFC Apex on Saturday night,” and the UFC said it took the allegations “very seriously,” noting that nothing was more important than the integrity of the sport. MMA journalist Ariel Helwani first reported Dulgarian’s release on social media and described the incident as “not an isolated” case, saying he had heard of multiple UFC fighters who had been approached with offers to intentionally fix fights for cash. The release was confirmed in a statement the UFC issued through the betting-integrity review.

Current Status #

As of the sources reviewed, the UFC had released Isaac Dulgarian on November 5, 2025, ending his affiliation with the promotion. The betting-integrity review of the Dulgarian–Del Valle bout was ongoing, and Dana White said the FBI was investigating the activity. Dulgarian was not charged in the reporting reviewed, and the release was framed by the UFC as a measure tied to the integrity of the sport rather than a confirmed finding of wrongdoing. His UFC career ended with the release.

Impact on Their Career/Life #

Dulgarian’s release came within a day of his fight and ended his time in the UFC over a betting-integrity concern, not a loss in the ring alone. The incident turned a routine card into one of the more prominent fight-fixing investigations in recent UFC history, with the FBI involved and the promotion publicly prioritizing the integrity of its events. For Dulgarian the consequence was the loss of his UFC contract — a release tied to the allegations and the integrity review, with the investigation still open. The case has since been cited as an example of how betting-integrity monitoring can end a fighter’s career in a single card, and of how quickly sportsbooks and the UFC react when a line moves in a way that suggests irregular wagering.