Carlos Ulberg secured a knockout victory over Jiri Prochazka at UFC 327 using his signature left check hook. The post details that Ulberg has scored six knockouts with this specific punch in his last 12 fights, dropping both orthodox and southpaw opponents. Prochazka was caught with the check hook three times before the finish, despite having been dropped by the same punch twice previously in his fights with Alex Pereira. The analysis suggests Prochazka failed to find a safe way to close distance against Ulberg's counter-punching style. Ulberg also suffered a knee injury during the bout but managed to continue fighting effectively.
Carlos Ulberg delivered a stunning knockout of Jiri Prochazka at UFC 327 on April 11, 2026, using his left check hook to stop the Czech contender and announce himself as a legitimate light heavyweight title threat.
Ulberg, known as "Black Jag," entered the fight ranked third in the light heavyweight division with a 15-1 record. The 35-year-old New Zealander, who trains out of City Kickboxing, stands six-foot-four with a 77-inch reach and has built his game around sharp counter-punching. His striking output is among the most prolific in the division at 6.54 significant strikes landed per minute, and the left check hook has now accounted for six knockouts across his last 12 fights against both orthodox and southpaw opponents. He absorbed a knee injury during the contest but fought through it to secure the finish.
Prochazka came in ranked second at 33 years old, carrying a 32-6-1 record and a reputation as one of the division's most explosive and unorthodox strikers. The Czech fighter out of Jetsaam Gym Brno posts 5.69 significant strikes per minute and holds a striking accuracy of 55 percent, matching Ulberg in that regard. Despite his six-foot-three frame and an 80-inch reach advantage over Ulberg, Prochazka was dropped by the check hook three times before the stoppage. Notably, the same punch had already dropped him twice in his previous bouts with Alex Pereira, yet he was unable to solve the puzzle against Ulberg's counter-punching structure.
Why it matters
- Ulberg's win over the number-two ranked Prochazka pushes him firmly into title contention at 185 pounds above flyweight
- The light heavyweight title picture now places Ulberg in direct conversation with number-one ranked Magomed Ankalaev, who sits fifth in the pound-for-pound rankings at 21-2-1
- Prochazka's recurring vulnerability to the check hook raises serious questions about whether his aggressive closing style can be corrected against elite counter-strikers
- City Kickboxing continues to prove itself as a dominant force in the UFC's upper divisions
Saturday, April 11, 2026
