Jiri Prochazka has addressed speculation about whether he showed mercy to Carlos Ulberg during their fight, with the post analyzing quotes from Miyamoto Musashi's "Book of Five Rings," a favorite of Prochazka. The analysis argues that Prochazka did not show mercy but rather lost concentration after seeing Ulberg as an easy target and recklessly pursued a finish. Prochazka later stated that mercy was inappropriate and that he needs to destroy that part of himself, acknowledging he lost focus and was caught. The post concludes that the issue was low fight IQ rather than compassion, noting Prochazka has never fought strategically and paid the price against the one-legged opponent. Prochazka apologized to fans and vowed to return stronger, mentioning he will soon witness "the miracle of life," possibly referring to the birth of a child.
Jiri Prochazka has broken his silence on the loss to Carlos Ulberg, pushing back against suggestions that compassion cost him the fight and instead pointing to a lapse in concentration as the true culprit.
The Czech fighter, ranked second in the light heavyweight division at 33 years old, carries a career record of 32-6-1 and is one of the most aggressive strikers in the 205-pound class. Standing six-foot-three with an 80-inch reach, Prochazka lands 5.69 significant strikes per minute at 55 percent accuracy — numbers that reflect his relentless, attack-first style. In his own words, he acknowledged losing focus mid-fight and admitted mercy has no place in competition, vowing to destroy that impulse within himself.
Drawing on analysis rooted in Miyamoto Musashi's Book of Five Rings — a philosophical text Prochazka is known to follow closely — the post-fight conversation framed his mistake not as softness but as recklessness. Upon seeing Ulberg as a vulnerable target, Prochazka reportedly abandoned discipline and chased the finish without control, leaving himself exposed and ultimately caught.
Ulberg, nicknamed Black Jag, improved to 15-1-0 with the victory and sits third in the light heavyweight rankings. The 35-year-old New Zealander trains out of City Kickboxing and is a significant threat on the feet, landing 6.54 significant strikes per minute at 55 percent accuracy — the highest output in the division among active contenders.
Why it matters
- Prochazka's loss reshuffles the light heavyweight picture, with the top two and three now having met
- His acknowledged pattern of fighting without strategy could factor into how the division's contendership unfolds
- Ulberg's win validates his ranking and puts pressure on the champion from a fresh, unbeaten-at-15 contender
- Prochazka closed by referencing what appeared to be the imminent birth of a child, signaling a personal milestone as he prepares his return
