It was supposed to be a routine matchup at UFC Vegas 110. Rising Cuban featherweight Yadier del Valle stepped in against promising wrestler Isaac Dulgarian, with most oddsmakers expecting the American to control the bout. But what unfolded before and during the fight has turned into one of the most talked-about betting stories of 2025.
Dulgarian opened as a -240 favorite, a clear indication of confidence from sportsbooks and bettors alike. Yet less than an hour before the fight, something strange happened. The line shifted sharply as Dulgarian’s odds tightened to -160, while del Valle’s odds improved dramatically. Even more curious, the prop bet for a first-round finish dropped from +850 to +475, suggesting a large influx of bets specifically predicting that outcome.
This wasn’t just routine fluctuation. The odds moved so quickly that DraftKings Sportsbook reportedly pulled the prop market altogether, halting further bets due to what it deemed “unusual activity.”
From Oddsmakers to Octagon: Reality Mirrors the Bets
Minutes later, del Valle delivered exactly what the late money predicted. He took control of the fight early, countering Dulgarian’s takedown attempts before securing a rear-naked choke that forced a tap in the first round.
For many watching, it was a shocking display not just of del Valle’s skill, but of how eerily the outcome aligned with the suspicious betting activity that preceded it. Dulgarian, who had never been finished in his professional career, was defeated within minutes.
Adding to the intrigue, Dulgarian once trained under James Krause, the coach whose involvement in a similar betting controversy at UFC Vegas 64 led to his suspension and a sweeping overhaul of UFC betting policies. That connection only deepened public concern that something might have been amiss.
Sportsbooks Respond to Growing Suspicion
Within hours of the fight, the backlash reached sportsbooks and social media. Users flooded betting forums, pointing out the odd timing of the line changes. Soon after, Caesars and William Hill took an extraordinary step issuing refunds for all bets placed on the Dulgarian–del Valle fight.
Refunding wagers is an extremely rare move in combat sports, typically reserved for bouts marred by officiating errors or confirmed irregularities. The decision signaled that these companies considered the betting behavior around UFC Vegas 110 to be highly irregular.
Industry insiders reported that tens of thousands of dollars in bets came in on del Valle in the hour before the bout particularly on the first-round finish prop, which saw the most drastic shift. Sportsbook analysts have since begun reviewing bet timing, account locations, and potential links to insider information.
Dulgarian Released After Defeat
The controversy deepened when Isaac Dulgarian was released by the UFC just one day after his defeat.
According to Ariel Helwani, the promotion stated the release was performance-based, not directly tied to the match-fixing allegations. Still, the timing of the move amid a brewing integrity storm has sparked widespread debate.
Dulgarian, 29, was previously seen as a talented prospect, holding two UFC wins before this loss. But his performance at UFC Vegas 110 raised eyebrows even among analysts. Commentator Michael Chiesa criticized Dulgarian’s defensive decisions during the broadcast, calling his submission defense “day-one mistakes” and describing his showing as an “F-minus performance.”
Following the fight, fans and pundits questioned whether Dulgarian’s release was purely athletic or an attempt by the UFC to quietly distance itself from a potentially larger controversy.
The Shadow of Past Scandals
This isn’t the first time the UFC has faced scrutiny over suspicious betting patterns. In 2022, the fight between Darrick Minner and Shayilan Nuerdanbieke saw a similar last-minute line swing after insiders learned Minner was injured. The fallout from that event led to widespread reforms, including partnerships with betting integrity monitors and tighter restrictions on fighter and coach wagering.
Now, those same integrity monitors may once again be called into action. While there’s no proof of wrongdoing, the similarity between UFC Vegas 110 and the 2022 controversy has alarmed both regulators and sportsbooks.
MMA Community Calls for Transparency
The reaction from the MMA world was swift. Fighters, coaches, and analysts demanded a formal investigation into what they’re calling the “most suspicious line movement since the Krause scandal.”
Many pointed to the fact that the UFC had promised “zero tolerance” for any betting-related misconduct following the 2022 investigation. If the del Valle–Dulgarian fight reveals further irregularities, it could reignite the debate about whether fighters, teams, or insiders have access to confidential information that affects betting markets.
What’s Next for the UFC?
As of now, neither the UFC nor the Nevada State Athletic Commission (NSAC) has issued an official statement. However, given the scale of the reaction and the sportsbooks’ decision to issue refunds, a review appears likely.
If an investigation confirms that insider information influenced betting markets, it could result in suspensions, revoked licenses, or even criminal charges. But if the anomaly proves coincidental, the incident still highlights how fragile public trust remains when it comes to betting integrity in combat sports.
Del Valle’s victory should have marked a breakout moment for the Cuban prospect — instead, it’s now shadowed by questions he never asked for.
Final Thoughts
Betting has become a major part of the UFC’s ecosystem, driving fan engagement and sponsorship revenue. Yet, with that comes responsibility and transparency. The suspicious events surrounding UFC Vegas 110 serve as a reminder that even one questionable line movement can shake confidence in the sport’s integrity.
As investigators dig deeper into what happened on that November night, fans, fighters, and sportsbooks are all left with one question: Was this event at UFC Vegas 110 just sharp money or something far more troubling?
Follow FIGHTCORE for more updates.
