- Heavweight-championship reigns:
Wladimir Klitschko - 7 years (14 defenses)
Lennox Lewis - 4¼ years (9 defenses)
Rocky Marciano - 4 years (6 defenses)
David Haye - 1⅔ years (2 defenses)
Wladimir Klitschko never lost to a fighter Lennox Lewis beat, but Lewis lost to a fighter Wladimir beat.
Dear Floyd, Norton Anti-Virus has detected 7 threats: Margarito, Williams, Pacquiao, Martinez, Alvarez, Bradley, and Trout. Norton has put these in quarantine to keep your record safe.