Klitschko brothers represented Ukraine at the 1996 Olympics, winning a gold medal in the super-heavyweight division. In 1996, when still an amateur, Vitali Klitschko tested positive for a banned substance and was removed from the Ukrainian boxing team. In June 1999, Vitali Klitschko won the WBO Heavyweight title from Herbie Hide via second-round knockout. He successfully defended the title twice before losing it to Chris Byrd. Six months later, younger brother Wladimir dethroned Byrd via lopsided points decision. He registered five successful title defenses, all by TKO until suffering an upset TKO loss to Corrie Sanders in March 2003. Vitali Klitschko lost
Vitali Klitschko was reelected as mayor on 15 November 2015. Originally, Klitschko was an amateur kickboxer with a record of 34–2 with 22 knockouts. Amateur boxing record: 195 wins, 15 losses. kickboxing record: 34–2 with 22 knockouts. He was a kickboxing world champion six times (four in professionals and two in amateurs). In 1996, he turned boxing professional. As an amateur, Klitschko won the super-heavyweight championship at the first World Military Games in Italy in 1995. In the same year he won a silver medal at the World Championships in Berlin, Germany, where he was defeated by Russia's Alexei Lezin in the