The manga inspired a television anime adaptation in 2000, followed by the Hajime no Ippo: New Challenger sequel in 2009 and the Hajime no Ippo Rising sequel in 2013.
The series also inspired the Hajime no Ippo – Champion Road special and the Hajime no Ippo – Mashiba vs. Kimura original video anime in 2003.
Crunchyroll is streaming the original anime adaptation and Hajime no Ippo Rising.
Morikawa launched Hajime no Ippo in 1989, and the series is his only manga.