The Saitama vs. Garou fight in the manga/anime is an extremely long battle overall, but the most commonly cited answer is that the final Cosmic Garou fight is around 14 minutes in fan-made animated form , while the actual story sequence spans a much longer stretch of chapters and scenes.

Quick answer

  • In the anime context , the full Saitama/Garou clash has not been fully adapted yet in a single official released season segment, so there isn’t one clean runtime for it.
  • In the manga/story context , the fight is a major multi-chapter sequence rather than a short, single-round exchange.

What people usually mean

  • If someone asks “how long was the fight,” they often mean the Cosmic Garou showdown.
  • A widely shared fan recreation of that battle runs about 14 minutes.
  • That is not the original manga’s literal chapter length, but it gives a rough sense of the on-screen scale fans associate with the fight.

Context

  • Season 3 coverage is expected to begin after the earlier seasons’ material and continue into the Monster Association arc, where Saitama and Garou’s confrontation becomes central.
  • Coverage around the franchise has also noted that the big Saitama vs. Garou clash is being teased for later anime material.

TL;DR

The famous Saitama vs. Garou fight is usually described as about 14 minutes in fan animation , but in the actual story it is a long multi-chapter battle , not a short fight.