Climbing divisions

[butterfly1964]

Henry Armstrong was the featherweight, lightweight, and welterweight champion at the same time. Not the most division titles but to have three different at the same time is ridiculous.

Plus they weren't sub-divisions either so it makes it more credible.

[hhascup]

Oscar De La Hoya (6)

WBO Junior Lightweight title
World WBO, IBF Lightweight titles
World WBC Junior Welterweight title
World WBC Welterweight title (failed to win IBF title)
World WBC, WBA Junior Middleweight titles
WBO Middleweight title (failed to win World WBA, WBC, IBF titles)



Floyd Mayweather, Jr. (5)

WBC Junior Lightweight title
World WBC Lightweight
WBC Junior Welterweight title
World WBC, IBF Welterweight titles
World WBC Junior Middleweight title



Thomas Hearns (5)

World WBA Welterweight title
World WBC Junior Middleweight title
WBC Middleweight title (failed to win World WBA, WBC, IBF titles)
WBO Super Middleweight title (failed to win the WBC title in controversial bout).
WBC, WBA Light Heavyweight titles



‘Sugar’ Ray Leonard (5)

World WBC, WBA Welterweight titles
WBA Jr. Middleweight title (failed to win WBC title)
World WBC Middleweight title
WBC Super Middleweight title (failed to win WBO title)
WBC Light Heavyweight title. (Won SMW and LHW titles in same bout).



John ‘Johnny’ Coulon (4)

World Paperweight title
World Flyweight title
World Junior Bantamweight title
World Bantamweight title.



Roberto Duran (4)
World WBA, WBC Lightweight titles
World WBC Welterweight title
WBA Jr. Middleweight title (failed to win WBC title)
WBC Middleweight title (failed to win World WBA, WBC, IBF titles).
He failed to win the WBC Super Middleweight title.



Silvio ‘Leo’ Gamez (4)

WBA Minimumweight title
WBA Junior Flyweight title
WBA Flyweight title (3rd attempt)
WBA Junior Bantamweight title.
He failed three times to win the WBA Bantamweight title.



Roy Jones, Jr. (4)

IBF Middleweight title
World IBF Super Middleweight title
Undisputed World two-time WBC, WBA, IBF Light Heavyweight titles
WBA Heavyweight title.



Pernell Whitaker (4)

Undisputed World IBF, WBC, WBA Lightweight titles (failed to win WBC title)
IBF Junior Welterweight title
World WBC Welterweight title (failed to win IBF title)
WBA Jr. Middleweight title.



I also know of 2 boxers that claimed to boxed in every weight division from Flyweight to Heavyweight, Georges Carpentier and Mickey Taylor.

[AntonTheMeh]

Oscar De La Hoya (6)

WBO Junior Lightweight title
World WBO, IBF Lightweight titles
World WBC Junior Welterweight title
World WBC Welterweight title (failed to win IBF title)
World WBC, WBA Junior Middleweight titles
WBO Middleweight title (failed to win World WBA, WBC, IBF titles)



Floyd Mayweather, Jr. (5)

WBC Junior Lightweight title
World WBC Lightweight
WBC Junior Welterweight title
World WBC, IBF Welterweight titles
World WBC Junior Middleweight title



Thomas Hearns (5)

World WBA Welterweight title
World WBC Junior Middleweight title
WBC Middleweight title (failed to win World WBA, WBC, IBF titles)
WBO Super Middleweight title (failed to win the WBC title in controversial bout).
WBC, WBA Light Heavyweight titles



‘Sugar’ Ray Leonard (5)

World WBC, WBA Welterweight titles
WBA Jr. Middleweight title (failed to win WBC title)
World WBC Middleweight title
WBC Super Middleweight title (failed to win WBO title)
WBC Light Heavyweight title. (Won SMW and LHW titles in same bout).



John ‘Johnny’ Coulon (4)

World Paperweight title
World Flyweight title
World Junior Bantamweight title
World Bantamweight title.



Roberto Duran (4)
World WBA, WBC Lightweight titles
World WBC Welterweight title
WBA Jr. Middleweight title (failed to win WBC title)
WBC Middleweight title (failed to win World WBA, WBC, IBF titles).
He failed to win the WBC Super Middleweight title.



Silvio ‘Leo’ Gamez (4)

WBA Minimumweight title
WBA Junior Flyweight title
WBA Flyweight title (3rd attempt)
WBA Junior Bantamweight title.
He failed three times to win the WBA Bantamweight title.



Roy Jones, Jr. (4)

IBF Middleweight title
World IBF Super Middleweight title
Undisputed World two-time WBC, WBA, IBF Light Heavyweight titles
WBA Heavyweight title.



Pernell Whitaker (4)

Undisputed World IBF, WBC, WBA Lightweight titles (failed to win WBC title)
IBF Junior Welterweight title
World WBC Welterweight title (failed to win IBF title)
WBA Jr. Middleweight title.



I also know of 2 boxers that claimed to boxed in every weight division from Flyweight to Heavyweight, Georges Carpentier and Mickey Taylor.

this is knowledge as well.