On December 7, 2013, a 34-year-old Felix Sturm (38-4-2, 17 KOs) got a shot at the IBF middleweight title held by 31-year-old British boxer Darren Barker (26-1, 16 KOs).
Sturm came in to the fight on a 1-fight win streak with a 38% KO rate, and was fighting after a gap of 5 months and 1 day. Barker was on a 3-fight win streak with a 59% KO rate, and fighting after a layoff of 3 months and 20 days.
Felix Sturm made very easy work of Darren Barker, stopping the champion via TKO in the 2nd. Sturm improves his record to 39-4-2 (18 KOs), while Barker adds a loss to his record at 26-2.
On February 20, 2016, Felix Sturm and Fedor Chudinov met again in an immediate rematch.
Sturm came in to the fight on a 1-fight losing streak with a 37% KO rate, and was fighting after a gap of 9 months and 11 days. Chudinov was on a 14-fight win streak with a 71% KO rate, and fighting after a layoff of 4 months and 25 days.
Felix Sturm defeated Fedor Chudinov via majority decision in the rematch and wins the WBA (Super) title. Sturm improves his record to 40-6-3, while Chudinov adds a loss to his record at 14-1.
On March 11, 2006, a 27-year-old Felix Sturm (24-1, 11 KOs) got a shot at the WBA middleweight title held by 39-year-old American boxer Maselino Masoe (26-2, 25 KOs).
Sturm came in to the fight on a 4-fight win streak with a 44% KO rate, and was fighting after a gap of 8 months and 21 days. Masoe was on a 8-fight win streak with a 89% KO rate, and fighting after a layoff of 1 year, 10 months, and 10 days.
Felix Sturm defeated Maselino Masoe via unanimous decision and wins the WBA title. Sturm improves his record to 25-1, while Masoe adds a loss to his record at 26-3.
On February 19, 2011, the 32-year-old WBA (Super) middleweight world champion, Felix Sturm (34-2-1, 14 KOs), faced Ronald Hearns, in a title defense fight.
Sturm came in to the fight on a 6-fight win streak with a 37% KO rate, and was fighting after a gap of 5 months and 15 days.
Felix Sturm stopped Ronald Hearns via TKO in the 7th round of the 12-round world-title fight, and successfully defended his WBA (Super) middleweight title. Sturm improves his record to 35-2-1 (15 KOs)
On April 28, 2007, Felix Sturm and Javier Castillejo met again in a rematch.
Sturm came in to the fight on a 1-fight win streak with a 42% KO rate, and was fighting after a gap of 4 months and 26 days. Castillejo was on a 3-fight win streak with a 62% KO rate, and fighting after a layoff of 4 months and 26 days.
Felix Sturm defeated Javier Castillejo via unanimous decision in the rematch and wins the WBA title. Sturm improves his record to 27-2, while Castillejo adds a loss to his record at 61-7.
On April 13, 2012, the 33-year-old WBA (Super) middleweight world champion, Felix Sturm (36-2-2, 15 KOs), faced Sebastian Zbik, in a title defense fight.
Sturm came in to the fight after a draw in his last fight with a 37% KO rate, and was fighting after a gap of 4 months and 11 days.
The challenger refused to continue the fight in the 9th round, and Felix Sturm is crowned the new middleweight world champion. Sturm improves his record to 37-2-2 (16 KOs)
On April 25, 2009, the 30-year-old WBA middleweight world champion, Felix Sturm (31-2-1, 13 KOs), faced Koji Sato, in a title defense fight.
Sturm came in to the fight on a 3-fight win streak with a 38% KO rate, and was fighting after a gap of 5 months and 24 days.
Felix Sturm stopped Koji Sato via TKO in the 7th round of the 12-round world-title fight, and successfully defended his WBA middleweight title. Sturm improves his record to 32-2-1 (14 KOs)
On April 5, 2008, the 29-year-old WBA middleweight world champion, Felix Sturm (28-2-1, 12 KOs), faced Jamie Pittman, in a title defense fight.
Sturm came in to the fight after a draw in his last fight with a 38% KO rate, and was fighting after a gap of 5 months and 16 days.
Felix Sturm stopped Jamie Pittman via TKO in the 7th round of the 12-round world-title fight, and successfully defended his WBA middleweight title. Sturm improves his record to 29-2-1 (13 KOs)
On November 1, 2008, the 29-year-old WBA middleweight world champion, Felix Sturm (30-2-1, 13 KOs), faced a 28-year-old fellow German boxer Sebastian Sylvester (29-2, 14 KOs), in a title defense fight.
Sturm came in to the fight on a 2-fight win streak with a 39% KO rate, and was fighting after a gap of 3 months and 25 days. Sylvester was on a 8-fight win streak with a 45% KO rate, and fighting after a layoff of 6 months and 20 days.
Felix Sturm defeated Sebastian Sylvester via unanimous decision and successfully defended his WBA middleweight title. Sturm improves his record to 31-2-1, while Sylvester adds a loss to his record at 29-3.
On September 4, 2010, the 31-year-old WBA (Super) middleweight world champion, Felix Sturm (33-2-1, 14 KOs), faced Giovanni Lorenzo, in a title defense fight.
Sturm came in to the fight on a 5-fight win streak with a 38% KO rate, and was fighting after a gap of 1 year, 1 month, and 24 days.
Felix Sturm defeated Giovanni Lorenzo via unanimous decision and successfully defended his WBA (Super) middleweight title. Sturm improves his record to 34-2-1