Carlos Ulberg became the new UFC light heavyweight champion by knocking out Jiri Prochazka in the first round at UFC 327. The victory marks Ulberg's tenth consecutive win in the UFC, his sixth knockout in the promotion, and ninth career knockout overall. Prochazka suffers his third title fight loss in the light heavyweight division and now holds a 6-3 record in the UFC. Ulberg's spectacular performance caps a remarkable winning streak and establishes him as the new 205-pound champion.
Carlos Ulberg seized the UFC light heavyweight championship with a stunning first-round knockout of Jiri Prochazka at UFC 327 on April 11, 2026, completing one of the most impressive runs in recent divisional history.
Ulberg, known as "Black Jag," entered the fight ranked third at 205 pounds and leaves it as champion. The 35-year-old New Zealander, training out of City Kickboxing, now carries a 15-1-0 professional record. The finish was his tenth consecutive UFC victory, his sixth knockout inside the promotion, and his ninth career knockout overall. Standing six-foot-four and generating 6.54 significant strikes per minute at 55 percent accuracy, Ulberg has long possessed the tools to finish fights quickly, and he delivered on the biggest stage of his career.
Prochazka entered as champion and ranked second in the division, but the 33-year-old Czech fighter was unable to survive the opening round. The six-foot-three orthodox striker from Jetsaam Gym Brno carries a massive 80-inch reach and an aggressive output of 5.69 significant strikes per minute, yet he could not weather Ulberg's assault. The defeat drops Prochazka to 32-6-1 overall and 6-3 inside the UFC, and it represents his third loss in a light heavyweight title fight.
Why it matters
- Ulberg's ten-fight UFC winning streak is among the most dominant runs the light heavyweight division has seen, and the title win validates that consistency at its peak.
- Prochazka's third title-fight defeat raises serious questions about where he goes next in a competitive 205-pound landscape.
- City Kickboxing now holds UFC gold again, reinforcing the New Zealand gym's status as one of the sport's elite training environments.
- A first-round finish over a former champion immediately establishes Ulberg as a credible and dangerous titleholder heading into his first defense.
Saturday, April 11, 2026
