Sean Strickland upsets Khamzat Chimaev to win middleweight title

Sean Strickland left Newark with the middleweight title after a split decision that will be argued long after UFC 328 is done reshaping the division. In a main event at Prudential Center on May 9, 2026, the judges scored it 48-47, 47-48 and 48-47 for Strickland, making him a two-time UFC middleweight champion and snapping Khamzat Chimaev’s unbeaten run.

The verdict carried immediate weight because Chimaev had entered the fight as champion and as one of the sport’s most protected unbeaten contenders. Strickland’s win was framed across the sport as an upset, and the closeness of the cards made the result feel less like a clean coronation than a referendum on how the fight was seen round by round. That matters in a division built around momentum, because one disputed score can change who gets the next title shot, who needs a rebound fight, and whether the champion leaves with authority or with questions.

The buildup only sharpened the aftermath. The rivalry turned ugly before fight night, with repeated insults and threats escalating into a heated press conference faceoff in which Chimaev kicked Strickland and security and police intervened. That volatility gave the title fight an edge, but it also raised the stakes for the judging. When a rivalry this personal ends by split decision, the scorecards become part of the story.

For Strickland, the victory completed a second climb to the top less than three years after he first shocked the MMA world to win the belt. The second reign now comes with a different kind of pressure. He is no longer just the surprise champion; he is the fighter who beat an unbeaten titleholder in a razor-thin decision that many will want revisited.

UFC 328 also delivered elsewhere on the card. Joshua Van stopped Tatsuro Taira in the fifth round to defend the flyweight title in the co-main event, Jim Miller added another record-extending win, and the night ended in front of a sold-out crowd in Newark. But the defining image was the middleweight title fight, and the question it leaves behind is simple: whether Strickland proved he belongs at the top again, or whether the split decision has already set up the next argument over who really owns the division.