Best fights of Joseph Diaz
Over 14 years as a professional, Joseph Diaz has compiled a 34-10-1 (15) record, including 15 title fights across four weight classes. Here are his top 10 best fights.
1. Joseph Diaz defeats Tevin Farmer
On January 30, 2020 Joseph Diaz fought Tevin Farmer for the IBF super featherweight title. Diaz was 27 years old with a record of 30-1, and Farmer was 29 with a record of 30-4-1. Diaz was on a 4-fight winning streak and Farmer was on a 5-fight winning streak. Diaz won via unanimous decision. Crowned the new super featherweight champion.
2. Joseph Diaz defeats Javier Fortuna
On July 9, 2021 Joseph Diaz fought Javier Fortuna for the vacant WBC interim lightweight title. Diaz was 28 years old with a record of 31-1-1, and Fortuna was 31 with a record of 36-2-1. Fortuna was on a 3-fight winning streak. Diaz won via unanimous decision. Won the vacant title.
3. Joseph Diaz defeats Manuel Ăvila
On May 6, 2017 Joseph Diaz defended his WBC-NABF featherweight title against Manuel Ăvila. Diaz was 24 years old with a record of 23-0, and Ăvila was 24 with a record of 22-0. Diaz was on an undefeated 23-fight winning streak and Ăvila was on an undefeated 22-fight winning streak. Diaz won via unanimous decision. Defended the title.
4. Joseph Diaz loses to Regis Prograis via unanimous decision
On August 2, 2025 Joseph Diaz faced Regis Prograis in a lightweight bout. Diaz was 32 years old with a record of 34-7-1, and Prograis was 36 with a record of 29-3. Diaz was coming off a win, while Prograis was on a 2-fight losing streak. Diaz lost via unanimous decision. Went the distance with Prograis.
5. Joseph Diaz defeats René Alvarado
On July 11, 2015 Joseph Diaz faced René Alvarado in a super featherweight bout. Diaz was 22 years old with a record of 16-0, and Alvarado was 26 with a record of 22-4. Diaz was on an undefeated 16-fight winning streak and Alvarado was coming off a win. Diaz won via unanimous decision.
6. Joseph Diaz loses to Devin Haney via unanimous decision
On December 4, 2021 Joseph Diaz fought Devin Haney for the WBC lightweight title. Diaz was 29 years old with a record of 32-1-1, and Haney was 23 with a record of 26-0. Diaz was coming off a win and Haney was on an undefeated 26-fight winning streak. Diaz lost via unanimous decision. Failed to capture the title. Went the distance with Haney.
7. Joseph Diaz KOs Victor Terrazas
On February 22, 2018 Joseph Diaz defended his WBC-NABF and WBO-NABO featherweight titles against Victor Terrazas. Diaz was 25 years old with a record of 25-0, and Terrazas was 0 with a record of 0-0. Diaz was on an undefeated 25-fight winning streak. Diaz stopped Victor Terrazas via KO in the 3rd round. Defended the titles.
8. Joseph Diaz KOs Freddy Fonseca
On May 4, 2019 Joseph Diaz fought Freddy Fonseca for the vacant WBA Gold super featherweight title. Diaz was 26 years old with a record of 28-1, and Fonseca was 0 with a record of 0-0. Diaz was on a 2-fight winning streak. Diaz stopped Freddy Fonseca via TKO in the 7th round. Won the vacant title.
9. Joseph Diaz KOs Victor Proa
On July 30, 2016 Joseph Diaz defended his WBC-NABF featherweight title against Victor Proa. Diaz was 23 years old with a record of 20-0, and Proa was 0 with a record of 0-0. Diaz was on an undefeated 20-fight winning streak. Diaz stopped Victor Proa via KO in the 2nd round. Defended the title.
10. Joseph Diaz KOs Hugo Partida
On December 18, 2015 Joseph Diaz fought Hugo Partida for the vacant WBC-NABF featherweight title. Diaz was 23 years old with a record of 18-0, and Partida was 0 with a record of 0-0. Diaz was on an undefeated 18-fight winning streak. Diaz stopped Hugo Partida via TKO in the 2nd round. Won the vacant title.