All The Babes
Mia St. John
Also known as Mia Rosales, Mia Rosales St. John, The Knockout
Career
Active 1997 – 2016
Biography
About Mia St. John
With her slim frame, black hair, and brown eyes, Mia St. John cuts a striking figure. Born in San Francisco, California, she is an American former Playboy Model and a pioneering sportswoman. She competed as a bare-knuckle boxer and mixed martial artist, and she holds championship titles in multiple boxing divisions.
Mia Rosales St. John became the World Boxing Council champion in the super welterweight division, and she also secured the IBA and IFBA lightweight titles. Her martial arts background includes taekwondo, where she also excelled as a champion. In 1999, she appeared in Playboy Magazine's November issue, showcasing her modeling career alongside her athletic pursuits. Active from 1997 to 2016, she spent 19 years in the ring. Even at 59, her legacy as a multi-talented competitor remains influential.
Record
Profile details
Personal
- Years Active
- 1997-2016 (started around 30 years old; 19 years active)
- Birthplace
- San Francisco, California, United States
- Ethnicity
- Latin
Body
- Hair Color
- Black
- Eye Color
- Brown
- Measurements
- 34–26–33 (B–W–H) · WHR 0.79
- Bra/Cup Size
- 34C show conversions - UK: 34C, EU: 75C, AU: 12C, JP: 75C
- Boobs
- Fake/Enhanced
- Tattoos
- Right Shoulder
- Piercings
- None
Extra
- Instagram Followers
- 39k (as of May 2026)
Frequently asked
Which boxing titles did Mia St. John win?
She was the World Boxing Council champion in the super welterweight division, and also held the IBA and IFBA lightweight titles.
What sports did Mia St. John compete in?
She competed in boxing, bare-knuckle boxing, and mixed martial arts, and she also holds a taekwondo championship.
When did Mia St. John appear in Playboy?
She appeared in the November 1999 issue of Playboy Magazine.
Did you know
- Mia St. John began her professional sports career around age 30, which is relatively late for an athlete, and remained active for 19 years.
- Her measurements are 34–26–33, which corresponds to a waist-to-hip ratio of 0.79.
- She has a tattoo on her right shoulder, but no piercings.
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