Sven Ottke (born 3 June 1967) is a German former professional boxer who competed from 1997 to 2004. He was a unified super-middleweight world champion, having held the IBF title from 1998 to 2004, and the WBA (Unified) title from 2003 to 2004. With 21 successful title defences, Ottke was the fourth European boxer to retire as an undefeated world champion, after Jack McAuliffe, Terry Marsh, and Michael Loewe; Joe Calzaghe later became the fifth. Ottke defended the title against 20 boxers, a record in the super-middleweight division shared with Joe Calzaghe. As an amateur, Ottke won a bronze medal in the middleweight division at the 1989 World Championships. Early life Sven Ottke served two apprenticeships as a plasterer and industrial clerk. He became a member of the boxing club Spandauer BC 26 Berlin at the age of 14. Amateur career He rebutted his critics, which had complained that he had started too late, when he became German Champion at the age of 18 at Middleweight. Ten further titles would follow. He took part in the 1988, 1992 and 1996 Olympic Games . He became European Champion in 1991 and 1996, and came third in 1993. Ottke held amateur wins over Antonio Tarver, Chris Byrd, Michael Moorer, Zsolt Erdei and Juan Carlos Gómez. Amateur Record: 256-47-5 German Middleweight Champion (FRG) 1985–1989 German National Middleweight Champion (1990–1991, 1995–1996) German National Light Heavyweight Champion (1992–1993) Three time Olympian Ottke finished his amateur career with a record of 256 wins, 47 losses (at least 4 by knockout,) 5 draws. As his professional career, he spent most of his amateur career within Germany. Of a few World Championships and Summer Olympics, which he participated in, Ottke did not manage to pass the quarterfinals (apart from the Moscow 1989, where he was dropped out of the semifinals.) Professional career After 308 fights as an amateur, of which he won 256, he turned professional in 1997. Less than a year later on 24 October 1998, he won the IBF super middleweight championship from Charles Brewer via a disputed decision victory. After this he made 16 successful defenses of his IBF title against fighters such as Thomas Tate (twice), Glen Johnson, Silvio Branco, James Butler, Anthony Mundine, Charles Brewer in a rematch, and a controversial points win against Robin Reid. He was at the peak of his career when he won the WBA title on 13 March