Between Rounds (bkdk)

Midoriya Izuku is a sports analytics student who's better at watching fights than fighting them. When his best friend casually passes along one of his predictions about the country's most explosive boxing star, Izuku doesn't expect it to matter.

It does.

Bakugou Katsuki has never needed advice- until someone starts seeking the cracks in his victories. Brought into Bakugou's orbit through managers, fighters, and chance encounters, Izuku finds himself analysing more than just matches.

This is a no quirk story.