Isaac Cruz has built a reputation as one of boxing’s most exciting fighters, earning the nickname “Pitbull” for his relentless aggression inside the ring.
The Mexican super lightweight champion has transformed his fighting style into financial success, collecting substantial purses from high-profile bouts and capturing multiple world titles.
His journey from Mexico City’s streets to championship status reflects both his dedication to the sport and his ability to command impressive paydays in an increasingly competitive boxing landscape.
Isaac Cruz’s Biography
| Category | Details |
|---|---|
| Full Name | Isaac Jonathan Cruz González |
| Date of Birth | May 23, 1998 |
| Age | 27 years |
| Nationality | Mexican |
| Height | 163 cm (5 ft 4 in) |
| Weight | 140 lbs (Super Lightweight) |
| Turned Pro | March 14, 2015 |
| Net Worth | $5 million |
| Career Earnings | $3.23 million |
| Wife | Itztlatoani Estrada Santiago |
| @isaacruz_mx |
Early Career
Isaac Cruz entered the boxing world at just 16 years old when he made his professional debut on March 14, 2015, stopping Luis Yan Revilla in the first round with a knockout at 1:30.
Growing up in Mexico City’s Magdalena Contreras neighborhood, Cruz was introduced to boxing at age seven by his father, who had a deep passion for the sport. His childhood in a working-class area shaped his aggressive fighting approach, which fans and analysts often compare to Mexican boxing legends like Julio César Chávez.
After his debut victory, Cruz continued building momentum throughout 2015 and 2016. He suffered his first professional loss against Luis Miguel Montaño in February 2016 via unanimous decision, but this setback only fueled his determination.
Cruz responded with four consecutive knockout victories in 2016, demonstrating the resilience that would become his trademark.
His early career featured fights across various venues in Mexico, including Arena Coliseo in Mexico City and Centro de Convenciones, where he steadily developed the come-forward pressure style that earned him the “Pitbull” nickname.
By 2017, Cruz had established himself as a rising prospect with explosive knockout power and an unwillingness to take backward steps.
Professional Career
Cruz’s breakthrough came on October 31, 2020, when he demolished former world title contender Diego Magdaleno in just 53 seconds at the Alamodome in San Antonio, Texas.
This spectacular performance on the Gervonta Davis vs. Leo Santa Cruz undercard put the boxing world on notice. He followed this with victories over Jose Matias Romero and Francisco Vargas in 2021, earning a shot at WBA lightweight champion Gervonta Davis on December 5, 2021.
Despite taking the fight on two weeks’ notice, Cruz pushed Davis the full 12 rounds, losing by unanimous decision but becoming only the second fighter to go the distance with the undefeated champion.
Cruz rebounded in 2022 with impressive wins over Yuriorkis Gamboa and Eduardo Ramirez, capturing the WBO Inter-Continental lightweight title and WBC Silver lightweight title.
His career reached new heights on March 30, 2024, when he moved up to super lightweight and defeated Rolando Romero by eighth-round technical knockout to win the WBA super lightweight title.
Cruz dominated the fight with his trademark pressure and left hooks, forcing the referee to stop the bout after landing consecutive power shots. He lost the title to José Valenzuela via split decision in August 2024 but bounced back with victories over Angel Fierro and Omar Salcido in 2025.
Most recently, Cruz won the WBC interim super lightweight title and fought to a majority draw against Lamont Roach Jr. in December 2025, retaining his interim championship.
Wife
Isaac Cruz married Itztlatoani Estrada Santiago, who has been his rock throughout his boxing journey. The couple began dating in 2016, during the early stages of Cruz’s professional career when they faced significant financial hardships.
Santiago revealed in a PBC Gloves Off episode that they struggled without a stable home or food during those challenging times, but they persevered together through dedication and mutual support.
Itztlatoani plays a crucial role in Cruz’s training regimen by ensuring he maintains a strict diet tailored to his preparation needs. She helps manage the household and picks up their children from school when Cruz is busy with training commitments.
Despite the fame and attention surrounding her husband’s boxing career, Santiago admits she gets nervous and anxious watching him fight because he gets hit regardless of the outcome.
The couple has two children together, and Cruz makes it a priority to spend quality time with his family at parks and during outings.
After victories, Cruz has been known to forgo extravagant celebrations in favor of serving dinner to his wife and children, demonstrating the grounded family values that keep him focused outside the ring.
Isaac Cruz’s Net Worth Details
As of 2026, Isaac Cruz’s net worth stands at approximately $5 million, with total career earnings reaching $3.23 million from fight purses alone.
Fight Purses
| Opponent | Purse | PPV Share | Total Earnings | Year |
|---|---|---|---|---|
| Lamont Roach Jr. | $500,000 | Not disclosed | $500,000+ | 2025 |
| Angel Fierro | $250,000 | $0 | $250,000 | 2025 |
| Omar Salcido | $250,000 | $0 | $250,000 | 2025 |
| Rolando Romero | $750,000 | $0 | $750,000 | 2024 |
| José Valenzuela | $350,000 | $0 | $350,000 | 2024 |
| Giovanni Cabrera | $250,000 | $0 | $250,000 | 2023 |
| Yuriorkis Gamboa | $200,000 | $0 | $200,000 | 2022 |
| Eduardo Ramirez | $200,000 | $0 | $200,000 | 2022 |
| Gervonta Davis | $300,000 | $450,000 | $750,000 | 2021 |
| Jose Matias Romero | $75,000 | $0 | $75,000 | 2021 |
| Francisco Vargas | $75,000 | $0 | $75,000 | 2021 |
| Diego Magdaleno | $75,000 | $0 | $75,000 | 2020 |
Career Earnings
| Year | Estimated Earnings |
|---|---|
| 2025 | $1,000,000+ |
| 2024 | $1,100,000 |
| 2023 | $250,000 |
| 2022 | $400,000 |
| 2021 | $900,000 |
| 2020 | $75,000 |
| 2015-2019 | $200,000 |
Career Stats
| Category | Record |
|---|---|
| Total Bouts | 33 |
| Wins | 28 |
| Losses | 3 |
| Draws | 2 |
| Knockouts | 18 |
| KO Percentage | 64.29% |
| Wins by Decision | 10 |
| Losses by Decision | 3 |
| Professional Debut | March 14, 2015 |
| Rounds Boxed | 192 |
| Stance | Orthodox |
| Reach | 160 cm (63 in) |
| Current Title | WBC Interim Super Lightweight Champion |
| Former Titles | WBA Super Lightweight Champion, WBC Silver Lightweight Champion, WBO Inter-Continental Lightweight Champion, WBO Latino Lightweight Champion |
FAQs
1. How much did Isaac Cruz make from the Gervonta Davis fight?
Cruz earned a total of $750,000 from his December 2021 fight against Gervonta Davis, which included a $300,000 guaranteed purse plus approximately $450,000 from his share of pay-per-view revenue.
2. Who has defeated Isaac Cruz in his boxing career?
Cruz has suffered three professional losses throughout his career. His first defeat came against Luis Miguel Montaño in February 2016 via unanimous decision when Cruz was just 17 years old.
3. What is Isaac Cruz’s fighting style and why is he called Pitbull?
Cruz earned the nickname “Pitbull” because of his aggressive, come-forward fighting style that features relentless pressure and non-stop combination punching.
4. How many children does Isaac Cruz have with his wife?
Cruz has two children with his wife Itztlatoani Estrada Santiago, though their names and specific ages have been publicly disclosed.
5. What titles has Isaac Cruz won in his boxing career?
Cruz has captured multiple championships across the lightweight and super lightweight divisions. He won the WBA super lightweight title by defeating Rolando Romero in March 2024, though he lost it to José Valenzuela five months later.
