- UFC Vegas 110 faces fight fixing allegations after underdog Yadier del Valle upset Isaac Dulgarian with a first-round submission win.
- Sportsbooks allegedly closed action and flagged the flight, but the UFC allowed it to continue and now more than 100 UFC flights were flagged by the FBI, according to a source.
- The news comes in the midst of many gambling scandals in the professional sports world, most notably the NBA just weeks ago.
LAS VEGAS – Heavy betting volume on underdog Yadier de Valle shifted betting lines on Saturday night, as favorite Isaac Dulgarian went from opening at -240 to shortening to -160 before the fight. MMA journalist Harry Mac posted many allegations on X and claims Saturday night’s fight was flagged by legal sportsbooks, but the fight went on.
VERY important tidbit here: the FBI notified the UFC of the abnormal action and line movement and gave them hours to pull the fight. They chose to continue and from my perspective are now complicit in fixing a fight
— Harry Mac (@bbharrymac) November 2, 2025
Some sportsbooks like Caesars even refunded customers that lost a bet on UFC Vegas 110, raising even further suspicions to the fight being fixed. A large wave of bets came in on Dulgarian to lose in the first round, which was the ultimate result of the fight.
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) should that bet have won without that leg included.
— Caesars Sportsbook Support (@CaesarsHelp) November 2, 2025
Harry Mac followed up with an update that reads “Federal regulators have flagged OVER 100 UFC fights this year for abnormal betting patterns, including 2 additional fighters on last nights card. Shit is about to get VERY ugly. Still working to confirm but it sounds like the Feds are moving to audit Herzogs fights”
Dulgarian Cut From UFC, Fight Fixing Allegations Flood
Quickly following his UFC Vegas 110 first-round submission loss, Isaac Dulgarian was cut by the UFC according to Ariel Helwani. Dulgarian had a 7-2 record before Saturday night, but his controversial loss may have ended his professional fighting career.
Isaac Dulgarian, who was submitted last night by Yadier del Valle, has been released by the UFC, sources say. He was released today.
The official reason was attributed to last night’s loss, however, the bout has been the center of controversy after a ton of money started to come…
— Ariel Helwani (@arielhelwani) November 3, 2025
Dulgarian opened as short as -280 at UFC betting sites, but those odds minimized to -160 pre-fight. There were long +850 odds for the fight to end in the first round, but those odds shortened to +475 before most books pulled the prop entirely.
All of the news circulating fight fixing is simply speculation at this point, but if the rumors are true, the UFC is in deep waters with many other fights now being flagged. Suspicious betting patterns from UFC Vegas 110 may just be the tip of the iceberg.
