What happened
Sean Strickland defeated Khamzat Chimaev by split decision in the UFC 328 main event on May 9 at Prudential Center in Newark, taking the UFC middleweight championship. Available fight reports and official UFC coverage show two judges scored it 48-47 for Strickland and one scored it 48-47 for Chimaev, with Strickland surviving Chimaev's early wrestling and winning a closely contested five-round fight.
Why it matters
This is a major title upset because Chimaev entered as a heavy betting favorite and lost for the first time as a professional. The outcome reshapes the middleweight picture immediately and adds another marquee championship upset to Sean Strickland's title resume, while debate over the decision is already driving strong fan reaction.
The data edge
Official and reported scorecards: 48-47 Strickland, 48-47 Strickland, 48-47 Chimaev. UFC event-page odds listed Chimaev at -575 and Strickland at +425; other pre-fight reports had Chimaev between -325 and -600 and Strickland between +260 and +425. Venue: Prudential Center, Newark, New Jersey. No injury data available for this signal.
What to watch
Watch for UFC confirmation on Strickland's first title defense and whether Chimaev stays at middleweight after the loss. The judging controversy and post-fight matchmaking will likely dominate the immediate fallout from UFC 328.