On 5 June 2004 in Las Vegas, Sturm confronted Oscar De la Hoya in a defense of his WBO middleweight championship. All three judges scored the fight 115-113 for de la Hoya, while Harold Lederman scored the fight 115-113 for Sturm. Compubox counted Sturm as landing 234 of 541 punches, while counting De La Hoya as landing 188 of 792. Sturm protested the choice with the Nevada Athletic Commission to no avail. On 11 March 2006, Sturm defeated Maselino Masoe for the WBA middleweight title by a unanimous decision. Sturm then lost his title against former champion Javier Castillejo via TKO on 15 July 2006 but won it back from Castillejo in a rematch on 28 April 2007 by a twelve round unanimous decision in Oberhausen, which he earned after defeating Gavin Topp by TKO in the sixth round. Sturm became a three-time world champion after defeating Castillejo in the rematch.
He way too fought Randy Griffin twice, drawing with him in their very first fight and winning their second fight by unanimous decision. On November 2, 2008, Sturm retained his WBA middleweight title via unanimous decision (118-110, 118-110 and 119-109) above Sebastian Sylvester. He improved to 31-2, with one draw, while Sylvester fell to 31-3. After over a year of inactivity Sturm came back to defend his WBA title against Giovanni Lorenzo, with the winner being the WBA “Super” champion. Sturm defeated Lorenzo by a twelve round unanimous decision with the judges giving a comfortable 117-111 twice and 118-111 on the scorecards.
|Height||5 ft 11 in|
|Day of Birth||31-January-1979|
|Place of Birth||Leverkusen, West Germany|