This article contains spoilers from My Hero Academia’s Final Saga.
Summary
- All Might was the strongest hero in his prime, capable of defeating All For One with just 5 punches.
- Prime All Might could run at an astounding speed of Mach 10, showcasing immense power and restraint.
- Horikoshi confirmed that All Might’s speed at Mach 10 was only a fraction of his full potential, making him even more formidable.
Fans of “My Hero Academia” now have additional material to enjoy, as the Ultra Age Fanbook was recently made available. The creator of the series, Kohei Horikoshi, has shared plenty of intriguing details with fans, such as background information on characters, their powers, and overall insights about the universe of MHA.
It’s not unexpected that All Might, one of the most notable characters from the world of My Hero Academia, was also the main focus of this fan book. Readers were given additional insights into him, including details about his past glory days and his later years as depicted in the story’s conclusion.
Prime All Might’s Power As Fans Know It
- All Might Was The Strongest In His Prime
- All Might Could Defeat All For One
Readers are well aware that All Might is famously recognized as the strongest Hero during his peak years. However, readers have only glimpsed this prime version of All Might for a short while in the narrative. When My Hero Academia starts, he’s significantly beyond his best. In battles, fans haven’t witnessed All Might at the pinnacle of his powers firsthand, but they have a fair understanding of his strength. During his fight against Nomu at USJ, he mentions that it took him over 300 punches in his prime to defeat the opponent, whereas now, it only requires 5.
In my prime days, it would’ve only taken 5 punches. — All Might
In the skirmish between All Might and All For One at Kamino, it became evident yet again that he had significantly weakened compared to his past. If this battle had taken place during his peak, it would’ve been over much sooner. Despite this, All Might emerged victorious in the current fight, but there’s no question that his prime self was on an entirely different level altogether.
Horikoshi Confirms Prime All Might’s Speed
All Might Could Run At Mach 10
In this rephrased version: Kohei Horikoshi frequently fields queries concerning All Might’s powers in his peak form, and this fanbook was no exception. One question posed to him was about the top speed of Prime All Might, or to be more precise, what his maximum running speed was. In response, Horikoshi explained that he could reach speeds equivalent to Mach 10.
Question: What’s the fastest speed in kilometers All Might has ever run?
Horikoshi: Mach 10 levels of speed (12,348km/h)
Mach 10 is an incredibly fast speed, and if All Might were to run at this pace, it would cause massive destruction due to its being ten times faster than the speed of sound. However, even this speed isn’t All Might’s maximum. In the series “My Hero Academia”, it is officially confirmed that All Might intentionally limits his speed to prevent widespread damage. This implies that All Might can move much faster than Mach 10 when he chooses not to hold back.
It’s alright. Why? Because I am here! — All Might
How Fast Can All Might Go?
Although he’s already reached speeds of Mach 10, it’s clear that he has the potential to go much faster. His swiftness in reactions and combat is impressive, and this is what makes him such a formidable force. If All Might were ever to be unleashed fully, even Mach 10 wouldn’t be able to keep up with his top speed. Sadly, we may never get to witness that.
Where To Read and Watch My Hero Academia
Available on Manga Plus and Crunchyroll

In 2024, the mangaka Horikoshi concluded the “My Hero Academia” manga series, consisting of 430 chapters for readers to enjoy. You can find all these chapters on Manga Plus, as it was initially serialized in Weekly Shonen Jump. As for the anime adaptation, its final season is yet to be released this year, and you can catch up with it on Crunchyroll.
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2025-05-05 22:45