Jiri Prochazka Vs. Carlos Ulberg Set For UFC 300 Co-Main Event

Former UFC light heavyweight champion Jiri Prochazka will face rising contender Carlos Ulberg in the co-main event of UFC 300 on April 13, 2026. The matchup, announced late Friday, has sparked immediate buzz among MMA fans as a high-stakes clash between a proven veteran and an undefeated prospect.

The fight replaces an originally scheduled bout after an injury forced another contender to withdraw. Prochazka (29-4-1) returns following his dramatic title loss last November, while Ulberg (12-0) enters with momentum after five consecutive UFC knockout wins. UFC President Dana White confirmed the booking during a press conference in Las Vegas.

UFC 300 marks a milestone event for the promotion, and the Prochazka-Ulberg matchup adds significant intrigue to the card. The winner could position themselves for a title shot later in 2026. ESPN analysts project the fight could deliver one of the highest striking rates in light heavyweight history.

Prochazka, known for his unorthodox style and finishing ability, told reporters he respects Ulberg's skills but plans to "bring chaos." The New Zealand-born Ulberg, a former kickboxing champion, called this his "career-defining opportunity" during an interview with MMA Junkie. Betting lines opened with Prochazka as a slight favorite.

The matchup is trending nationally as fans debate whether Ulberg's technical striking can overcome Prochazka's unpredictable offense. Social media reactions have been divided, with many praising the UFC for matching styles that promise action. The fight joins a stacked UFC 300 card headlined by a welterweight title bout.

T-Mobile Arena in Las Vegas will host the event, with remaining tickets selling rapidly after the matchup announcement. The UFC expects strong pay-per-view numbers, potentially rivaling last year's record-breaking events. Preliminary fights begin at 6 p.m. ET, with the main card starting at 10 p.m. ET on ESPN+ PPV.