Key Moments:
- Isaac Dulgarian was released by the UFC after unusual betting patterns were detected prior to his fight against Yadier del Valle
- Sportsbooks halted wagering on the bout due to a surge in bets on del Valle to win in Round 1
- Caesars Sportsbook issued refunds to customers who placed losing bets related to the match
Unusual Betting Activity Triggers UFC Action
The UFC has parted ways with featherweight contender Isaac Dulgarian after multiple sportsbooks identified suspicious betting behavior in the hours leading up to his scheduled fight with Yadier del Valle at UFC Fight Night in Las Vegas. Integrity Compliance 360 reported significant activity on bets for del Valle to secure a first-round victory. Based on this alert, betting operators stopped accepting further wagers before the match began.
🚨 BREAKING: Isaac Dulgarian has been released by the UFC, per @arielhelwani
While the official reason cited is last night’s loss, the decision comes amid controversy after Dulgarian’s betting odds drastically changed just before his fight at #UFCVegas110 last night
A large… pic.twitter.com/AtvpuiYyUf
— Championship Rounds (@ChampRDS) November 3, 2025
Fight Results and Betting Movements
During the UFC event at UFC APEX, Yadier del Valle defeated Isaac Dulgarian by submission at 3:41 in the opening round. Odds from BetMGM on Friday had Dulgarian favored at -275 and del Valle at +220. The most popular prop at that time was Dulgarian by Decision/Technical Decision at +250. The betting line for Dulgarian shifted sharply to -154 right before the fight, and heightened interest in del Valle prompted several platforms to suspend betting altogether.
| Fighter | Opening Odds (BetMGM) | Pre-Fight Odds | Outcome |
|---|---|---|---|
| Isaac Dulgarian | -275 | -154 | Lost via submission (Round 1, 3:41) |
| Yadier del Valle | +220 | Not specified | Won via submission (Round 1, 3:41) |
Regulatory Response and Refunds
The UFC underscored its commitment to integrity, stating, “Like many professional sports organizations, UFC works with an independent betting integrity service to monitor wagering activity on our events,” and added, “Our betting integrity partner, IC360, monitors wagering on every UFC event and is conducting a thorough review of the facts surrounding the Dulgarian vs. del Valle bout on Saturday, November 1.
“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.”
In the aftermath, Caesars Sportsbook announced refunds for customers who placed unsuccessful bets on the fight, confirming, “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 determine (Parlay/SGP/Super Parlay) should that bet have won without that leg included,” via a statement on X.
Dulgarian’s Previous Comments on Betting
Even prior to UFC Vegas 110, Dulgarian had expressed opinions on fighter compensation relating to betting activity. He stated to MMA Junkie, “Don’t bet on me unless I’m getting a percentage,” adding, “I’m doing all the work. That’s how I feel about it.”
He further commented, “I think they should put some type of clause like 3-5% of what you make goes to the fighter. .. So yeah, if you’re betting on me, I want some of it.”
- Author
Daniel Williams
