Carlos Ulberg scored a first-round knockout victory over Jiri Prochazka at UFC 327. The finish came early in the opening frame, marking a significant upset in the light heavyweight division. Ulberg's performance was emphatic, ending the fight before Prochazka could find his rhythm. This result represents a major statement win for Ulberg and a setback for the former champion Prochazka.
Carlos Ulberg delivered one of the most striking upsets in recent light heavyweight history, stopping Jiri Prochazka by first-round knockout at UFC 327 on April 11.
Ulberg, known as "Black Jag," entered the fight ranked third at 205 pounds with a record of 15-1. The 35-year-old New Zealander, who trains out of City Kickboxing, stands six-foot-four with a 77-inch reach and has built a reputation as a high-output striker, landing 6.54 significant strikes per minute at a 55 percent accuracy clip. Against Prochazka, he never gave the former champion a chance to settle, ending matters before the opening round was out.
Prochazka came in ranked second in the division with a record of 32-6-1 and a history as one of the most dangerous finishers in the weight class. The 33-year-old Czech Republic native trains out of Jetsaam Gym Brno and carries a six-foot-three frame with an extraordinary 80-inch reach. He averages 5.69 significant strikes per minute at 55 percent accuracy, but on this night Ulberg's pace and timing proved too much to handle early.
Why it matters
- Ulberg's win over the second-ranked contender vaults him into title contention at 205 pounds and reshapes the top of the division.
- Prochazka suffers a significant setback in his bid to reclaim the light heavyweight title he previously held.
- Both fighters share a similar output-heavy striking style, making Ulberg's clean finish in the first round all the more emphatic.
- City Kickboxing continues to cement itself as a dominant force in combat sports with another high-profile performance.
Saturday, April 11, 2026
