Isaac “Pitbull” Cruz
Isaac “Pitbull” Cruz is a Mexican boxer from Mexico City, a former WBA super lightweight world champion and the WBC interim super lightweight titleholder, known for his pressure fighting.
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Latest
Isaac’s happenings, collected from public sources, plus his backstory and Starbook, where fans write.
Known for
- Winning the WBA title against Rolly Romero2024 · Eighth-round stoppage
Premier Boxing Champions - Taking Gervonta Davis the distance2021 · Twelve-round world title challenge
Premier Boxing Champions - The Angel Fierro fight2025 · Ten-round unanimous decision win
Premier Boxing Champions - Facing Lamont Roach2025 · Majority draw and interim title defense
Premier Boxing Champions
Overview
- From
- Mexico City, Mexico
- Born
- May 23, 1998
- Sport
- Professional boxing
- Pro debut
- March 2015, aged 16
- Breakout
- First-round knockout of Diego Magdaleno in October 2020
- Division
- Super lightweight, 140 pounds
Mini bio
A family of fighters.
Cruz grew up in Mexico City in a boxing family. His father, Isaac Sr., and grandfather, Memo, both fought professionally. He took up the sport as a child and has described boxing as a way to avoid negative influences in his neighborhood.
Finding his audience.
He turned professional in March 2015 at 16. His first-round knockout of Diego Magdaleno in October 2020 brought wider attention, and in December 2021 he challenged Gervonta Davis for a lightweight world title. Davis won by unanimous decision after twelve rounds.
Becoming a champion.
Cruz stopped Rolando “Rolly” Romero in the eighth round on March 30, 2024, to win the WBA super lightweight world title. After losing that belt to Jose Valenzuela that August, he rebuilt with victories over Angel Fierro and Omar Salcido in 2025. The Salcido win brought him the WBC interim title.
Life beyond the bell.
In his PBC interview, Cruz described time with his wife and children as his favorite way to unwind. His training soundtrack ranges from Mexican music to electronic music and EDM.
Creditschronological, newest first
- 2026Isaac Cruz vs. Nestor BravoWinner by sixth-round stoppage; interim title defense
- 2025Isaac Cruz vs. Lamont RoachMajority draw; retained WBC interim title
- 2025Isaac Cruz vs. Omar SalcidoUnanimous decision winner
- 2024Rolando Romero vs. Isaac CruzWinner by eighth-round TKO; WBA title win
- 2021Gervonta Davis vs. Isaac CruzWBA lightweight world title challenger
Awards
Quotes
I’m trying to provide a better life for my wife and child.Isaac Cruz, Premier Boxing Champions
Speaking before his December 2021 world title challenge against Gervonta Davis, Cruz explained what motivated him.
Trivia
- He says the nickname “Pitbull” came from fans in Mexico City and reflects his fighting style.
- The Alamodome holds a special place for him because he associates it with the world discovering his boxing.
- Asked about another career, he suggested becoming a translator or a chef.
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