- The details of the beginning of this battle are unknown.
During the match, both Katsuki and Eijiro hit each other directly with their Quirks. However, Eijiro's tough skin dampens Katsuki's Explosion while Katsuki is injured by Eijiro's hardened punch. Katsuki evades Eijiro's hardened swipes unable to land an explosion against him.
Katsuki eventually manages to hit and injure Eijiro with an explosion, realizing that Eijiro's Hardening weakens through continuous strikes. Katsuki attacks Eijiro with a continuous barrage of Explosions that not only breaks through Eijiro's Hardening but badly injures Eijiro as well. Eijiro is knocked out by Katsuki's Explosion barrage, no longer able to fight.
Katsuki is declared the winner and gains the right to advance to the semifinals, where he faces Fumikage Tokoyami.