On July 2, 2011, the 35-year-old IBF, WBO, and The Ring heavyweight champion, Wladimir Klitschko (55-3, 48 KOs), and the 30-year-old WBA (Super) heavyweight champion David Haye (25-1, 23 KOs) met in a title-unification fight.
Klitschko came in to the fight on a 13-fight win streak with a 82% KO rate, and was fighting after a gap of 9 months and 21 days. Haye was on a 15-fight win streak with a 88% KO rate, and fighting after a layoff of 7 months and 19 days.
Wladimir Klitschko defeated David Haye via unanimous decision and unifies the IBF, WBO, The Ring, and WBA (Super) heavyweight titles. Klitschko improves his record to 56-3, while Haye adds a loss to his record at 25-2.
On October 5, 2013, the 37-year-old WBA (Super), IBF, WBO, and The Ring heavyweight world champion, Wladimir Klitschko (60-3, 51 KOs), faced a 34-year-old Russian boxer Alexander Povetkin (26-0, 18 KOs), in a title defense fight.
Klitschko came in to the fight on a 18-fight win streak with a 81% KO rate, and was fighting after a gap of 5 months and 1 day. Povetkin was on a 26-fight win streak with a 69% KO rate, and fighting after a layoff of 4 months and 18 days.
Wladimir Klitschko defeated Alexander Povetkin via unanimous decision and successfully defended his WBA (Super), IBF, WBO, and The Ring heavyweight titles. Klitschko improves his record to 61-3, while Povetkin adds a loss to his record at 26-1.
On July 7, 2012, Wladimir Klitschko and Tony Thompson met again in a rematch.
Klitschko came in to the fight on a 15-fight win streak with a 81% KO rate, and was fighting after a gap of 4 months and 4 days. Thompson was on a 5-fight win streak with a 63% KO rate, and fighting after a layoff of 1 year, 1 month, and 11 days.
In the rematch, Wladimir Klitschko stopped Tony Thompson via TKO in the 6th round of the 12-round world-title fight, and successfully defended his WBA (Super), IBF, WBO, and The Ring heavyweight titles. Klitschko improves his record to 58-3 (50 KOs), while Thompson adds a loss to his record at 36-3.
On July 7, 2007, Wladimir Klitschko and Lamon Brewster met again in a rematch.
Klitschko came in to the fight on a 6-fight win streak with a 82% KO rate, and was fighting after a gap of 3 months and 27 days. Brewster was on a -1-fight win streak with a 80% KO rate, and fighting after a layoff of 1 year, 3 months, and 6 days.
In the rematch, the challenger refused to continue the fight in the 6th round, and Wladimir Klitschko is crowned the new heavyweight world champion. Klitschko improves his record to 49-3 (43 KOs), while Brewster adds a loss to his record at 33-4.
On April 26, 2014, the 38-year-old WBA (Super), IBF, WBO, and The Ring heavyweight world champion, Wladimir Klitschko (61-3, 51 KOs), faced a 34-year-old Australian boxer Alex Leapai (30-4-3, 24 KOs), in a title defense fight.
Klitschko came in to the fight on a 19-fight win streak with a 79% KO rate, and was fighting after a gap of 6 months and 21 days. Leapai was on a 5-fight win streak with a 64% KO rate, and fighting after a layoff of 5 months and 3 days.
Wladimir Klitschko stopped Alex Leapai via TKO in the 5th round of the 12-round world-title fight, and successfully defended his WBA (Super), IBF, WBO, and The Ring heavyweight titles. Klitschko improves his record to 62-3 (52 KOs), while Leapai adds a loss to his record at 30-5-3.
On November 15, 2014, the 38-year-old WBA (Super), IBF, WBO, and The Ring heavyweight world champion, Wladimir Klitschko (62-3, 52 KOs), faced a 33-year-old Bulgarian boxer Kubrat Pulev (20-0, 11 KOs), in a title defense fight.
Klitschko came in to the fight on a 20-fight win streak with a 80% KO rate, and was fighting after a gap of 6 months and 20 days. Pulev was on a 20-fight win streak with a 55% KO rate, and fighting after a layoff of 7 months and 10 days.
Wladimir Klitschko stopped Kubrat Pulev via KO in the 5th round of the 12-round world-title fight, and successfully defended his WBA (Super), IBF, WBO, and The Ring heavyweight titles. Klitschko improves his record to 63-3 (53 KOs), while Pulev adds a loss to his record at 20-1.
On March 3, 2012, the 35-year-old WBA (Super), IBF, WBO, and The Ring heavyweight world champion, Wladimir Klitschko (56-3, 48 KOs), faced a 39-year-old French boxer Jean-Marc Mormeck (36-4, 22 KOs), in a title defense fight.
Klitschko came in to the fight on a 14-fight win streak with a 81% KO rate, and was fighting after a gap of 8 months and 1 day. Mormeck was on a 3-fight win streak with a 55% KO rate, and fighting after a layoff of 1 year, 3 months, and 1 day.
Wladimir Klitschko stopped Jean-Marc Mormeck via KO in the 4th round of the 12-round world-title fight, and successfully defended his WBA (Super), IBF, WBO, and The Ring heavyweight titles. Klitschko improves his record to 57-3 (49 KOs), while Mormeck adds a loss to his record at 36-5.
On March 24, 2001, the 24-year-old WBO heavyweight world champion, Wladimir Klitschko (35-1, 31 KOs), faced Derrick Jefferson, in a title defense fight.
Klitschko came in to the fight on a 11-fight win streak with a 86% KO rate, and was fighting after a gap of 5 months and 10 days.
Wladimir Klitschko made very easy work of Derrick Jefferson, stopping the challenger via TKO in the 2nd. Klitschko improves his record to 36-1 (32 KOs)
On June 29, 2002, the 26-year-old WBO heavyweight world champion, Wladimir Klitschko (38-1, 34 KOs), faced a 41-year-old American boxer Ray Mercer (30-4-1, 22 KOs), in a title defense fight.
Klitschko came in to the fight on a 14-fight win streak with a 87% KO rate, and was fighting after a gap of 3 months and 13 days. Mercer was on a 7-fight win streak with a 62% KO rate, and fighting after a layoff of 4 months and 6 days.
Wladimir Klitschko stopped Ray Mercer via TKO in the 6th round of the 12-round world-title fight, and successfully defended his WBO heavyweight title. Klitschko improves his record to 39-1 (35 KOs), while Mercer adds a loss to his record at 30-5-1.
On May 4, 2013, the 37-year-old WBA (Super), IBF, WBO, and The Ring heavyweight world champion, Wladimir Klitschko (59-3, 50 KOs), faced a 28-year-old Italian boxer Francesco Pianeta (28-0-1, 15 KOs), in a title defense fight.
Klitschko came in to the fight on a 17-fight win streak with a 80% KO rate, and was fighting after a gap of 5 months and 24 days. Pianeta was on a 10-fight win streak with a 51% KO rate, and fighting after a layoff of 5 months and 18 days.
Wladimir Klitschko stopped Francesco Pianeta via TKO in the 6th round of the 12-round world-title fight, and successfully defended his WBA (Super), IBF, WBO, and The Ring heavyweight titles. Klitschko improves his record to 60-3 (51 KOs), while Pianeta adds a loss to his record at 28-1-1.