George Kambosos Jr boxer's career, Net Worth, Age, & Family

George Kambosos Jr. (born 14 June 1993) is a Greek-Australian professional boxer best known for his lightning-fast footwork, relentless heart, and upset victory over Teófimo López to become the unified lightweight champion in 2021. Kambosos held the WBA (Super), IBF, WBO, and The Ring lightweight titles between 2021 and 2022 and later secured the IBO lightweight title in 2022.

He remains one of Australia’s most recognized boxers, respected for his warrior mindset and his iconic Spartan tattoo that symbolizes the motto:
“Never retreat, never surrender.”

Table of Contents

Early Life

Born in Sydney to a Greek family, George Kambosos Jr. grew up with a deep connection to his heritage. His grandparents migrated from Sparta, and his upbringing emphasized discipline, courage, and hard work.

As a child, Kambosos struggled with weight and bullying. His father enrolled him in boxing at age 11 to improve his fitness—a life-changing decision that sparked a championship-level passion.

Before fully committing to boxing, he was a junior rugby league player and part of the Cronulla Sharks development squad. At 15, he chose boxing over rugby and soon compiled 85 wins in 100 amateur fights.

Professional Career Journey

Early Career

Kambosos made his professional debut in May 2013, defeating Jayson Mac Gura via a second-round TKO. He rose quickly through Australia’s lightweight rankings and captured the WBA Oceania title in 2016.

Victories over Qamil Balla and Krai Setthaphon solidified him as one of Oceania’s top prospects, earning him international attention.

Sparring Partner for Manny Pacquiao

In 2017, Kambosos became the main sparring partner for Manny Pacquiao, preparing Pacquiao for several major bouts. This experience sharpened his timing, footwork, and ability to fight at elite levels.

Breakthrough Wins

In 2019 and 2020, wins over former world champions Mickey Bey and Lee Selby positioned him as the IBF mandatory challenger.

George Kambosos Jr. Salary and Net Worth

How Much Does He Earn Per Fight?

George Kambosos Jr. earns between $500,000 and $5 million per fight, depending on the opponent and pay-per-view sales.

Teófimo López’s fight purse (2021): approx. $1.5 million
Devin Haney fights (2022): combined over $4 million

Net Worth in 2025

As of 2025, George Kambosos Jr.’s estimated net worth is:

$4 million – $6 million

This includes:

Fight purses
Pay-per-view shares
Sponsorships
Brand partnerships

George Kambosos Jr. Personal & Professional Information, family, salary, and biography

Category	Details
Full Name	George Kambosos Jr.
Age	32 (as of 2025)
Birth Date	14 June 1993
Birth Place	Sydney, New South Wales, Australia
Nationality	Greek-Australian
Height	5 ft 9 in (175 cm)
Reach	68 in (173 cm)
Weight Class	Lightweight
Stance	Orthodox
College/School	Bexley Public School
Turned Professional	2013
Professional Record (2025)	21 Wins – 3 Losses
Wins by KO	10
Highest Ranking	Unified Lightweight Champion (2021–2022)
Wife	Bec (Rebecca) Kambosos
Children	2
Father’s Name	Jim Kambosos
Mother’s Name	Not publicly disclosed
Religion	Christian
Nickname	“Ferocious”
Residence	Sydney, Australia
Trainer History	Javier Centeno, others
Style Notes	Fast hand speed, aggressive counter-punching

Becoming Unified Lightweight Champion

Victory Over Teófimo López (2021)

On 27 November 2021, George Kambosos Jr. shocked the boxing world by defeating Teófimo López by split decision, becoming:

WBA (Super) Lightweight Champion
IBF Lightweight Champion
WBO Lightweight Champion
The Ring Lightweight Champion

This remains one of the biggest upsets in modern boxing history.

Fights Against Devin Haney (2022)

Kambosos faced Devin Haney twice in 2022 for the undisputed title. Although he lost both fights via unanimous decision, he remained a top lightweight contender.

2024 Fight: Lomachenko vs. Kambosos

On May 12, 2024, Kambosos fought Vasiliy Lomachenko for the vacant IBF title. Lomachenko won via 11th-round TKO, with Kambosos showing tremendous toughness before the stoppage.

2025 Fight Update

Kambosos is scheduled to fight Jake Wyllie on March 22, 2025, after Daud Yordan withdrew due to medical reasons.

George Kambosos Jr. Age and Height

How Old Is George Kambosos Jr.?

Age: 32
Birthday: 14 June 1993

Height and Physical Build

Height: 5 ft 9 in (175 cm)
Reach: 68 in (173 cm)

His size gives him excellent balance between power and speed in the lightweight division.

George Kambosos Jr.’s Wife or Girlfriend

Who Is George Kambosos Jr. Married To?

George Kambosos Jr. is married to Rebecca “Bec” Kambosos.

The couple maintains a private family life and has two children. She is known for supporting George during training camps and travels.

His Latest Career News (2024–2025)

Latest Fight Updates

Lost to Vasiliy Lomachenko via TKO (May 2024)
Scheduled to fight Jake Wyllie on March 22, 2025, after the original opponent, Daud Yordan, withdrew
Training camp is currently ongoing in Sydney with a revamped strategy focused on body movement and power shots

Kambosos aims to reinstate himself as a top lightweight contender in 2025.