Best fights of Mikaela Mayer
Over 9 years as a professional, Mikaela Mayer has compiled a 22-3 (5) record, including 15 title fights across four weight classes. Here are her top 10 best fights.
1. Mikaela Mayer defeats Sandy Ryan
On September 27, 2024 Mikaela Mayer fought Sandy Ryan for the WBO welterweight title. Mayer was 34 years old with a record of 19-2, and Ryan was 31 with a record of 7-1-1. Mayer was coming off a loss, while Ryan was coming off a win. Mayer won via majority decision. Crowned the new welterweight champion.
2. Mikaela Mayer defeats Sandy Ryan in their 2nd fight
On March 29, 2025 Mikaela Mayer defended her WBO welterweight title against Sandy Ryan. It was their second meeting. Mayer was 34 years old with a record of 20-2, and Ryan was 31 with a record of 7-2-1. Mayer was coming off a win, while Ryan was coming off a loss. Mayer won via unanimous decision. Defended the title.
3. Mikaela Mayer defeats Maïva Hamadouche
On November 5, 2021 Mikaela Mayer, the WBO super featherweight champion, met Maïva Hamadouche, the IBF female super featherweight champion, in a title unification fight. Mayer was 31 years old with a record of 15-0, and Hamadouche was 32 with a record of 22-1. Mayer was on an undefeated 15-fight winning streak and Hamadouche was on a 13-fight winning streak. Mayer won via unanimous decision. Became the unified super featherweight champion.
4. Mikaela Mayer defeats Mary Spencer
On October 30, 2025 Mikaela Mayer fought Mary Spencer for the vacant WBA, WBC, and WBO super welterweight titles. Mayer was 35 years old with a record of 21-2, and Spencer was 0 with a record of 0-0. Mayer was on a 2-fight winning streak. Mayer won via unanimous decision. Won the vacant titles.
5. Mikaela Mayer loses to Natasha Jonas via split decision
On January 20, 2024 Mikaela Mayer fought Natasha Jonas for the IBF welterweight title. Mayer was 33 years old with a record of 19-1, and Jonas was 39 with a record of 14-2-1. Mayer was on a 2-fight winning streak and Jonas was on a 5-fight winning streak. Mayer lost via split decision. Failed to capture the title. Went the distance with Jonas.
6. Mikaela Mayer defeats Erica Anabella Farias
On June 19, 2021 Mikaela Mayer defended her WBO super featherweight title against Erica Anabella Farias. Mayer was 30 years old with a record of 14-0, and Farias was 0 with a record of 0-0. Mayer was on an undefeated 14-fight winning streak. Mayer won via unanimous decision. Defended the title.
7. Mikaela Mayer defeats Ewa Brodnicka
On October 31, 2020 Mikaela Mayer fought Ewa Brodnicka for the vacant WBO super featherweight title. Mayer was 30 years old with a record of 13-0, and Brodnicka was 0 with a record of 0-0. Mayer was on an undefeated 13-fight winning streak. Mayer won via unanimous decision. Won the vacant title.
8. Mikaela Mayer defeats Lucy Wildheart
On April 15, 2023 Mikaela Mayer fought Lucy Wildheart for the vacant WBC interim lightweight title. Mayer was 32 years old with a record of 17-1, and Wildheart was 0 with a record of 0-0. Mayer was coming off a loss. Mayer won via unanimous decision. Won the vacant title.
9. Mikaela Mayer loses to Chantelle Cameron via unanimous decision
On August 29, 2026 Mikaela Mayer, the WBC and WBO super welterweight champion, met Chantelle Cameron, the WBO super welterweight champion, in a title unification fight. Mayer was 36 years old with a record of 22-2, and Cameron was 35 with a record of 22-1. Mayer was on a 3-fight winning streak and Cameron was on a 4-fight winning streak. Mayer lost via unanimous decision. Lost the title in unification. Went the distance with Cameron.
10. Mikaela Mayer loses to Alycia Baumgardner via split decision
On October 15, 2022 Mikaela Mayer, the WBO, IBF, and The Ring super featherweight champion, met Alycia Baumgardner, the WBC and IBO super featherweight champion, in a title unification fight. Mayer was 32 years old with a record of 17-0, and Baumgardner was 28 with a record of 12-1. Mayer was on an undefeated 17-fight winning streak and Baumgardner was on a 6-fight winning streak. Mayer lost via split decision. Lost the title in unification. Went the distance with Baumgardner.