Mikaela Mayer
Mayer in 2016 | |||||||||||||||
| Personal information | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Born | Mikaela Joslin Mayer July 4, 1990 Los Angeles, California, U.S. | ||||||||||||||
| Height | 5 ft 9 in (175 cm) | ||||||||||||||
| Weight | |||||||||||||||
| Boxing career | |||||||||||||||
| Reach | 66+1⁄2 in (169 cm) | ||||||||||||||
| Stance | Orthodox | ||||||||||||||
| Boxing record | |||||||||||||||
| Total fights | 24 | ||||||||||||||
| Wins | 22 | ||||||||||||||
| Win by KO | 5 | ||||||||||||||
| Losses | 2 | ||||||||||||||
Medal record
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Mikaela Joslin Mayer (born July 4, 1990) is an American professional boxer who has held world championships in three weight classes and is the current unified world female super-welterweight champion since October 2025, holding the WBA, WBC and WBO titles. She has also held the WBO welterweight title since September 2024. Mayer is a former unified female super-featherweight world champion, having held the WBO and IBF titles simultaneously. She has also held the interim WBC female lightweight title. As an amateur, she won a bronze medal at the 2012 World Championships and competed for the U.S. at the 2016 Olympics.
In 2025, Mayer was named Sports Illustrated's Female Fighter of the Year.