Pyfer Stuns Adesanya in UFC Seattle Main Event

Underdog Joe Pyfer scores second-round TKO over champion Israel Adesanya

Mar. 29, 2026 at 2:49am

Got story updates? Submit your updates here. ›

In a shocking upset, challenger Joe Pyfer defeated reigning UFC middleweight champion Israel Adesanya via second-round TKO in the main event of UFC Seattle on Saturday night. Pyfer, a heavy underdog, was able to weather an early storm from the champion before unleashing a barrage of ground-and-pound to finish the fight.

Why it matters

This result shakes up the UFC middleweight division, as Adesanya had been the dominant champion for several years. Pyfer's victory over the highly-touted champion will likely earn him a rematch and set up a potential new era in the 185-pound weight class.

The details

After a close first round, Pyfer was able to take Adesanya down in the second and gain full mount. From there, he unleashed a series of heavy elbows and punches that forced referee Herb Dean to stop the fight at 4:18 of the round, giving Pyfer the shocking TKO win.

  • The fight took place on March 28, 2026 at the Climate Pledge Arena in Seattle, Washington.
  • Adesanya and Pyfer squared off in the main event of UFC Seattle, which aired live on Paramount+.

The players

Israel Adesanya

The reigning UFC middleweight champion, known for his elite striking skills and unorthodox fighting style.

Joe Pyfer

The challenger, a relative newcomer to the UFC who pulled off the major upset over the champion.

Herb Dean

The veteran UFC referee who officiated the main event fight between Adesanya and Pyfer.

Got photos? Submit your photos here. ›

What they’re saying

“I knew I had to bring the fight to Adesanya and not let him dictate the pace. I'm just so grateful to get this win and prove I belong with the best in the world.”

— Joe Pyfer, UFC Fighter

What’s next

With the upset victory, Joe Pyfer will likely earn an immediate rematch against Israel Adesanya to defend his newly won UFC middleweight title. The two are expected to run it back in the coming months, with the date and location to be determined.

The takeaway

Joe Pyfer's stunning knockout of the long-reigning champion Israel Adesanya has shaken up the UFC middleweight division and set the stage for a highly anticipated rematch between the two fighters. This result proves that any fighter can pull off an upset on any given night in the unpredictable world of MMA.