Brandon Royval weathers a chaotic test to earn a submission win over Lone’er Kavanagh at UFC 329

Brandon Royval needed every bit of his experience to escape trouble before turning it into a finish, grinding out a late submission win over fellow UFC flyweight Lone’er Kavanagh at UFC 329 in Las Vegas. The bout played out like a momentum swing, with both fighters trading control and positioning, and with Royval ultimately finding a path to end the contest after the action turned especially chaotic early and mid-round.

Royval, fighting at 125 pounds, took the kind of fight that tests more than just physical strength. According to the report, he dragged Kavanagh into deep waters, shaping the later portion of the fight by continuing to attack and stay active as the rounds progressed. Kavanagh, meanwhile, responded in a back-and-forth style that kept the contest uncomfortable for Royval and prevented either man from settling into a clean rhythm.

The deciding moment came in the final frame. After two chaotic rounds, Royval secured a late submission that forced the stoppage, finishing Kavanagh rather than allowing the outcome to be decided by judges. The submission capped a fight that had already earned high regard from UFC officials: the bout was awarded Fight of the Night honors.

Fight of the Night at UFC 329 carried a meaningful financial reward for both competitors, with each fighter reported to receive $100,000. That context matters because it highlights how competitive the matchup was across the full 15-minute distance, not only in the final sequence that produced the stoppage.

The win also frames Royval’s style as more than just a one-move finishing plan. In this performance, the submission arrived only after he navigated extended adversity, stayed engaged during the periods when the fight could have flipped, and then executed when the opening finally presented itself late.

For Kavanagh, the loss lands in a different place: a competitive, highly entertaining showing that fell one step short of turning into a victory. Even without a final-round win, the fight’s Fight of the Night designation underlines that Kavanagh posed real threat throughout and was able to force Royval into a deeper exchange than an easier, more controlled fight would require.

What to watch next is how UFC uses the result in the flyweight picture. Royval’s finish gives him momentum within a division where finishing ability and the ability to perform under pressure both weigh heavily. Kavanagh’s competitive performance also keeps him in view for future opportunities, especially if UFC continues to prioritize matchups that produce the kind of end-to-end engagement this bout delivered.