Radivoje Kalajdzic

Radivoje Kalajdzic (born 27 July 1991) is a Serbian-American professional boxer. He has challenged for the world light-heavyweight championship two times; for IBF in 2019 & for vacant WBA (Regular) in 2024.

Career Kalajdzic turned professional in 2011. On 18 October 2013, he stopped light heavyweight Otis Griffin in the first round. Kalajdzic lost a highly controversial decision to Marcus Browne on 16 April 2016 fight for the WBC United States title, which broke his undefeated streak. He was officially the IBU Champion in 2014.

On 4 May 2019, Kalajdzic challenged IBF light-heavyweight champion Artur Beterbiev at Stockton Arena in Stockton, California, USA, losing by knockout in the fifth round.

Kalajdzic was scheduled to face David Morell for the vacant WBA "Regular" light heavyweight title at BMO Stadium in Los Angeles, California, USA, on 3 August 2024. He lost the fight by unanimous decision.

On 1 February 2026, Kalajdzic fought Oleksandr Gvozdyk at Meta Apex in Enterprise, Nevada, USA. He recovered from being sent to the canvas in rounds one and four to win by knockout in the seventh round.

Personal life Born in Zenica, SR Bosnia and Herzegovina (at the time SFR Yugoslavia), his family fled the Bosnian War in 1992 first to Bijeljina in Republika Srpska and then moved to Čačak in Serbia, and after 7 years as refugees they moved to the United States,

Professional boxing record