Former four-division world champion Floyd ‘Money’ Mayweather, 50-0, passed former heavyweight champion Rocky Marciano, 49-0, in August 2017, stopping MMA champion Connor McGregor, making his boxing debut in ten rounds. Some feel an * should be besides his 50-0 record, and I’m one of them.
Some have retired unbeaten, and others unbeaten with a draw or two. WBO Super Middleweight champion Joe Calzaghe, 46-0 from Wales, retired due to bad hands. He came to the US and defeated Bernard ‘The Executioner’ Hopkins and Roy Jones, Jr., ending his career.
Ricardo ‘Finito’ Lopez, Jr., 51-0-1 was WBA Mini and IBF light Flyweight champion after drawing with Rosendo Alvarez, won the rematch. He was 47-0 when they drew.
Jimmy ‘Little Tiger’ Barry, 59-0-10, world bantamweight champion, drawing in his last eight fights.
Italy’s EBU champion Nino LaRocca, 74-6, was 56-0 when he lost.
Thailand’s WBC Mini world champion Chayaphon Moonsri, 55-3, was 54-0 when he lost.
Heavyweight champion Larry, ‘The Easton Assassin,’ was 48-0 when he lost to Olympic and then light heavyweight champion Michael Spinks.
‘Super’ Brian Nielsen, 64-3, from Denmark, was 49-0 when he lost to Dicky Ryan, winning the rematch.
Lee Sala was 48-0 when he lost to Tony DeMicco, winning the rematch.
Thailand’s Tasama Salapat, 76-2 with 53 knockouts, was 48-0 when he lost to Takuma Inoue.
IBF Lightweight champion Paul ‘The Pittsburgh Kid’ Spadafora was 49-1-1 and 48-0-1 when he lost to Johan Perez.
Heavyweight champion Deontay, ‘The Bronze Bomber’ Wilder, was 42-0-1 when he lost to Tyson Fury.
Former Super Middleweight and Cruiserweight champion Gilberto ‘El Zurdo’ Ramirez, 46-1, was 44-0 when he lost to Dimitrii Bivol.
Three-division world champion Mexico’s Julio ‘JC’ Cesar Chavez, 107-6-2, was 89-0-1 when he lost to Frankie ‘The Surgeon’ Randall, winning the rematch.
Light Welterweight champion Aaron ‘Hawk’ Pryor, 39-1, was 36-0 when he returned after two years losing to Bobby Joe Young.
Denmark’s Tom Boggs, 77-8-1, was 53-0-1 when he lost to Emile Griffith.
Brazil’s two-division world champion Eder Jofre, 72-2-4, was 47-0-3 when he lost to Fighting Harada.
Poland’s two-division world champion Dariusz Michalczewski, 48-2, was 48-0 when he lost to Julio Cesar Gonzalez.
World Featherweight champion Willie ‘Will o’ the Wisp’ Pep, 229-11-1, was 62-0 when he lost to Sammy Angott.
Former WBO Light Middleweight champion Mexico’s Jaime Munguia, 44-1, was 43-0 when he lost to Saul ‘Canelo’ Alvarez.
Two-division world champion ‘Sugar’ Ray Robinson, 174-19-6, was 40-0 when he lost to Jake LaMotta. He would defeat La Motta four times during their career.
Light and Heavyweight champion Gene ‘The Fighting Marine’ Tunney, 80-1-3, was 47-0-2 when he lost to Harry Greb.
Heavyweight champion Russian Nikolai ‘The Russian Giant’ Valuev, 50-2, was 46-0 when he lost to Ruslan Chagaev.
Two-division world champion Italy’s Nino Benvenutti, 82-7-1, was 65-0 when he lost to Ki Soo Kim.
I’m sure readers will come up with other names.
Read the full article here