California State Athletic Commission (CSAC) is one of the only major commissions that routinely releases athletes’ fight night weights (and purses). As part of the commission’s efforts to discourage extreme weight cutting, fighters are weighed again on the day of…
The California State Athletic Commission has released the official fight night weights for UFC 331, which took place on September 19, 2026, at the Crypto.com Arena in Los Angeles. The data revealed that UFC Flyweight champion Joshua Van gained 20.8 pounds after his official weigh-in. Van entered the Octagon at 145.8 pounds for his title defense, effectively competing at a Featherweight weight class.
Van's opponent, Alexandre Pantoja, gained 15.2 pounds overnight to weigh 140.2 pounds on fight night. Other notable weight gains included Middleweight Ozzy Diaz, who increased his weight by 26.4 pounds to reach 212.4 pounds, and Featherweight Joanderson Brito, who gained 25.9 pounds to weigh 171.4 pounds for his bout against Giga Chikadze.
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