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Sportsbooks are not taking chances after last week’s NBA betting scandal.
On Saturday, many MMA fans noticed that the betting line for the Isaac Dulgarian vs. Yadier Del Valle fight moved suddenly before the start of the bout due to bets coming in for Del Valle, who was initially a -250 underdog.
I’m hearing the Isaac Dulgarian and Yadier Del Valle fight has been pulled from some books. The line has gone from -250 all the way down to -166. Which means a crazy amount of money has come in on Del Valle in the last couple hours. #UFCVegas110
— FULL SEND MMA (@full_send_mma) November 1, 2025
Somethng is going on with Duglarian vs Del Valle. Lots of $$$ coming in on Del Valle and DraftKings pulled the prop odds for the fight. Very odd. Keep an eye on this one #UFCVegas110
— Adam Martin (@MMAdamMartin) November 1, 2025
Dulgarian, initially a -250 favorite, got crushed by Del Valle, which had the commentators confused by his performance.
@ufc YADIER DEL VALLE IS LEAVING THE APEX STILL UNDEFEATED 👊 #ufc #mma #yadierdelvalle
Several sportsbooks, including Caesars and William Hill, offered refunds for the Dulgarian-Del Valle fight after fans flagged the questionable betting movement before 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
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.
— William Hill US (@WilliamHillUS) November 2, 2025