Between November 2021 and June 2022, George Kambosos Jr (born 14 June 1993) held the WBA (Super), IBF, WBO, and The Ring lightweight belts.

Kambosos was born to Greek parents in Sydney, New South Wales.

In honor of his Spartan ancestors, Kambosos has the legendary Spartan war cry “Never retreat, never surrender” tattooed on his torso.

He began playing junior rugby league for the Gymea Gorillas at an early age, and because he was frequently ridiculed as a child for being overweight, his father enrolled him in boxing courses at the age of 11 to help him improve his fitness.

Kambosos lost weight swiftly and was assigned to the Cronulla Sharks development squad, where he was coached by Ricky Stuart, but as a teenager, he was forced to choose between boxing and rugby league.

Before turning professional, he chose the boxing route and amassed 85 wins in 100 amateur contests. Throughout his childhood, Kambosos went to Bexley Public School in Sydney’s southern suburbs.

George Kambosos Jr. Win Record and Stats

No. Result Record Opponent Type Round, time Date Location Notes
21 Loss 20–1 Devin Haney UD 12 5 Jun 2022 Marvel Stadium, Melbourne, Australia Lost WBA (Super), IBF, WBO, and The Ring lightweight titles;
For WBC lightweight title
20 Win 20–0 Teófimo López SD 12 27 Nov 2021 Hulu Theater at Madison Square Garden, New York City, New York, US Won WBA (Super), IBF, WBO, and The Ring lightweight titles
19 Win 19–0 Lee Selby SD 12 31 Oct 2020 The SSE Arena, London, England
18 Win 18–0 Mickey Bey SD 10 14 Dec 2019 Madison Square Garden, New York City, New York, US
17 Win 17–0 Richard Pena TKO 6 (10), 1:36 7 Jun 2019 Galatsi Olympic Hall, Athens, Greece
16 Win 16–0 Rey Perez UD 8 19 Jan 2019 MGM Grand Garden Arena, Paradise, Nevada, US
15 Win 15–0 JR Magboo TKO 2 (8), 2:02 15 Jul 2018 Axiata Arena, Kuala Lumpur, Malaysia
14 Win 14–0 Jose Forero KO 1 (10), 1:48 5 May 2018 Foxwoods Resort Casino, Ledyard, Connecticut, US
13 Win 13–0 Krai Setthaphon TKO 9 (10), 1:59 13 Oct 2017 Melbourne Pavilion, Melbourne, Australia Retained WBA Oceania lightweight title;
Won vacant IBF Pan Pacific lightweight title
12 Win 12–0 Qamil Balla UD 10 6 May 2017 Vodafone Events Centre, Auckland, New Zealand
11 Win 11–0 Brandon Ogilvie UD 12 2 Dec 2016 Luna Park, Sydney, Australia Won WBA Oceania lightweight title
10 Win 10–0 Issa Nampepeche RTD 4 (12), 3:00 8 Jun 2016 Entertainment Centre, Sydney, Australia Retained WBA-PABA lightweight title
9 Win 9–0 Joebert Delos Reyes KO 4 (12), 2:34 12 Dec 2015 Alexandria Basketball Stadium, Sydney, Australia Retained WBA-PABA lightweight title
8 Win 8–0 Leonardo Esteban Gonzalez TKO 3 (12), 2:59 4 Jul 2015 Club Punchbowl, Sydney, Australia Won WBA-PABA interim lightweight title
7 Win 7–0 Rodynie Rafol UD 6 31 Jan 2015 Allphones Arena, Sydney, Australia
6 Win 6–0 Robert Toomey UD 10 29 Aug 2014 Club Punchbowl, Sydney, Australia Won Australian lightweight title
5 Win 5–0 Akrapong Nakthaem TKO 1 (6), 2:30 9 Apr 2014 Entertainment Centre, Newcastle, Australia
4 Win 4–0 Paitoon Jaikom UD 6 29 Jan 2014 Entertainment Centre, Brisbane, Australia
3 Win 3–0 Michael Correa TKO 6 (8), 2:59 22 Nov 2013 Croatian Club, Sydney, Australia Won vacant NSW state lightweight title
2 Win 2–0 Roberto Oyan UD 6 17 Aug 2013 Croatian Club, Sydney, Australia
1 Win 1–0 Jayson Mac Gura TKO 2 (6), 2:06 18 May 2013 Croatian Club, Sydney, Australia