Career
He has also held the African Boxing Union titles at both weights. Moreover, Isaac has been featured in the top ten in Ring Magazine"s ratings for light heavyweights. Chilembe made his professional debut in Gauteng, South Africa on 19 October 2005 defeating Thamsanga Tindleni in the 2nd round of a 4 round contest.
He compiled a run of eight successive victories before dropping a points decision to Willbeforce Shihepo on 5 July 2007 at the Emperor"s Palace in Gauteng.
The reverse to Shihepo was immediately rectified in his next fight, again in Gauteng, on 21 November 2007 defeating Shihepo on points over six rounds. Two more fights followed in 2008 resulting in wins over David Basajjamivule and Chamunorowa Gonorenda before Chilembe got the opportunity to fight for the African Boxing Unions super middleweight championship on 13 September 2008.
In his next fight Chilemba stepped up to light heavyweight and challenged former victim David Basajjamivule for the WBO version of the light heavyweight title. The fight at the Graceland Casino in Mpumalanga took place on 13 June 2009 and resulted in a second victory over the Ugandan.
The fight however never materialised after Oakey lost an English title fight to fellow countryman Danny McIntosh.
IBO World Title
Following the pullout, Chilemba moved back down at super middleweight for the chance to fight undefeated Australian Michael Bolling on 19 June 2010 for the vacant IBO world title. Chilemba made the first defence of his IBO belt on 6 November 2010 returning to the Emperors Palace and retaining with a gruelling draw against touted South African Thomas Oosthuizen despite being the underdog going into the fight. On 25 February 2011 Chilemba travelled to Tulsa, Oklahoma to fight in the United States for the first time.
Chilemba is Jewish.
