On March 5, 2016, the 37-year-old WBA (Regular) heavyweight world champion, Ruslan Chagaev (34-2-1, 21 KOs), faced a 36-year-old Australian boxer Lucas Browne (23-0, 20 KOs), in a title defense fight.
Chagaev came in to the fight on a 7-fight win streak with a 56% KO rate, and was fighting after a gap of 7 months and 23 days. Browne was on a 23-fight win streak with a 87% KO rate, and fighting after a layoff of 6 months and 20 days.
Lucas Browne stopped the champion via TKO in the 10th round of the 12-round world-title fight, winning the first world title of his career, and is crowned the new WBA (Regular) heavyweight champion. Browne improves his record to 24-0 (21 KOs), while Chagaev adds a loss to his record at 34-3-1.
On August 27, 2011, 32-year-old Ruslan Chagaev (27-1-1, 17 KOs) and 31-year-old Alexander Povetkin (21-0, 15 KOs) fought for the vacant WBA (Regular) heavyweight title.
Chagaev came in to the fight on a 2-fight win streak with a 58% KO rate, and was fighting after a gap of 9 months and 8 days. Povetkin was on a 21-fight win streak with a 71% KO rate, and fighting after a layoff of 8 months and 9 days.
Alexander Povetkin defeated Ruslan Chagaev via unanimous decision and wins the WBA (Regular) title — in his first world-title fight. Povetkin improves his record to 22-0, while Chagaev adds a loss to his record at 27-2-1.
On June 20, 2009, a 30-year-old Ruslan Chagaev (25-0-1, 17 KOs) got a shot at the heavyweight IBF and WBO title held by 33-year-old Ukrainian boxer Wladimir Klitschko (52-3, 45 KOs).
Chagaev came in to the fight on a 20-fight win streak with a 65% KO rate, and was fighting after a gap of 4 months and 13 days. Klitschko was on a 10-fight win streak with a 81% KO rate, and fighting after a layoff of 6 months and 7 days.
The challenger refused to continue the fight in the 9th round, and Wladimir Klitschko is crowned the new The Ring heavyweight world champion. Klitschko improves his record to 53-3 (46 KOs), while Chagaev adds a loss to his record at 25-1-1.