Throughout his career, Vitali has defeated 15 boxers for the world heavyweight title, the fifth-most in history (tied with Lennox Lewis), including two – Corrie Sanders and Danny Williams – for the non-paper world heavyweight championship. Klitschko is one of nine boxers to defeat at least ten different fighters for the world heavyweight title. As of March 2021, BoxRec ranks Klitschko as the 92nd greatest pound-for-pound boxer of all time. He is the sixth highest ranked fighter to have only faced heavyweights during his professional career and the second highest ranked among fighters whose opponents have always weighed in 200+ lbs. Klitschko has been ranked among BoxRec's 10 best heavyweights 12 times, having been placed at No.1 in 2004, and his victorious fights against Tomasz Adamek and Chris Arreola were awarded a 5-Star rating. He is the only heavyweight boxer to have reigned as world champion in three different decades. Klitschko and George Foreman are the only heavyweight boxers in history to defend a world title after turning 40. According to BoxRec, Vitali has defeated 7 previously undefeated fighters with a combined record 135–0–3 (95 KOs) – these 7 included Alben Belinski (professional record 5–0, 5 KOs coming into the fight), Ed Mahone (21–0–2, 21 KOs), Timo Hoffmann (22–0, 13 KOs), Chris Arreola (27–0, 24 KOs), Kevin Johnson (22–0–1, 9 KOs), Odlanier Solis (17–0, 12 KOs) and Manuel Charr (21–0, 11 KOs).