Carlos Ulberg has now recorded six knockouts or knockout-initiating sequences with his left check hook in his last 12 fights, an unprecedented rate of success with a single strike in modern UFC. The analysis notes Ulberg has dropped both orthodox and southpaw opponents with this technique, catching fighters whether they're aggressively closing distance or fighting cautiously. Prochazka was hit with the check hook three times before the knockout despite having been dropped by the same strike twice in his bouts with Alex Pereira. The piece questions why Prochazka, given his size advantage and grappling success against fighters like Nemkov, Teixeira, and Pereira, didn't incorporate wrestling threats or clinch work to safely close distance. For an Ankalev vs. Ulberg matchup, the analysis gives Ankalev a slight 55-45 edge, noting Ankalev's vulnerability to the left check hook but crediting his pressure fighting and wrestling ability.
Carlos Ulberg continued to make his left check hook one of the most feared weapons in mixed martial arts at UFC 327 on April 11, finishing Jiri Prochazka and extending his knockout tally with that single technique to six times across his last 12 fights.
Ulberg, known as "Black Jag," carries a 15-1 record and sits third in the light heavyweight rankings. The 35-year-old New Zealander out of City Kickboxing stands six-foot-four with a 77-inch reach and lands an impressive 6.54 significant strikes per minute at 55 percent accuracy. What makes his check hook so dangerous is its versatility — analysis of the strike shows it has felled both orthodox and southpaw opponents, catching fighters regardless of whether they are crowding forward or maintaining cautious distance.
Prochazka, ranked second at light heavyweight, entered the bout with a 32-6-1 record and the physical tools to cause problems. The 33-year-old Czech fighter stands six-foot-three with an 80-inch reach — the longest in the division among the principals here — and posts 5.69 significant strikes per minute. Despite having been dropped by the same check hook twice in previous bouts with Alex Pereira, Prochazka absorbed the same technique three times before the finish, and analysis of his performance questions why he did not lean on wrestling threats or clinch work to neutralize the strike, given his documented grappling success against opponents like Nemkov, Teixeira, and Pereira.
Why it matters
- Ulberg's check hook now has a documented knockout or knockout-initiating sequence in half of his last 12 outings, a rate analysts describe as unprecedented in the modern UFC era
- Despite the finish, post-fight analysis suggests Prochazka had available tactical answers — wrestling pressure and clinch engagement — that went unused
- A potential matchup between Ulberg and number-one ranked Magomed Ankalaev looms; Ankalaev, 34, holds a 21-2-1 record with 0.79 takedowns per 15 minutes and is rated a narrow 55-45 favorite despite being viewed as susceptible to the same check hook that finished Prochazka
Saturday, April 11, 2026
