Showbizz Top 10 Most INSANE Accomplishments Ever 1. Muhammad Ali - Known as the Greatest 2. Sugar Ray Robinson - 128-1 Record 3. Sam Langford - Lightweight-Heavyweight 4. Harry Greb - 45-0 In 1 year 5. Terence Crawford - 3x Undisputed 140-168 6. Henry Armstrong - Undisputed 3 divisions simultaneously 7. Manny Pacquiao - 8 division champion 8. Floyd Mayweather - 50-0 & Highest paid ever 9. Roy Jones Jr — From Middleweight Champion to Heavyweight Champion 10. Joe Louis — 25 Consecutive Heavyweight Title Defenses #showbizz #muhammadali #boxing #greatest