As from 4 November 2010, this page is no longer being updated.
Please visit the governing body websites for world rankings.
The British rankings
are, however, still being kept up to date.
Staff at the BBC Sport website have banged their heads together and compiled a list of the world's top-10 boxers, pound-for-pound.
Taking weight out of the equation, this subjective list factors in fighters' recent results, as well as their style, resilience and punching power.
POUND-FOR-POUND TOP 10
1. Floyd Mayweather
United States (41-0, 25KOs)
So masterful was Mayweather against Shane Mosley, we felt compelled to put him back on top of our list. Alas, doesn't look like a match with Manny Pacquiao will happen any time soon.
2. Manny Pacquiao
Philippines (51-3-2, 38KOs)
A bout with Floyd Mayweather having fallen through, Pacquiao will instead step up yet again to fight Antonio Margarito for the WBC light-middleweight crown in November.
3. Juan Manuel Marquez
Mexico (51-5-1, 37KOs)
Marquez defended his undisputed lightweight crown with ease against Juan Diaz in July and is set to face rampaging Aussie Michael Katsidis in November.
4. Nonito Donaire
Philippines (24-1, 16KOs)
The 'Filipino Flash' has claimed world titles at flyweight and super-flyweight and the next step could be a match against undisputed bantamweight champion Fernando Montiel.
5. Paul Williams
United States (39-1, 27KOs)
Williams beat Kermit Cintron in bizarre fashion when Cintron fell through the ropes and a rematch with Sergio Martinez could take place in November.
6. Shane Mosley
United States (46-6, 39KOs)
Mosley was beaten handily by Mayweather, losing almost every round. He's had a stellar career, and at 38, he might now decide to call it a day.
7. Pongsaklek Wonjongkam
Thailand (76-3-1, 40KOs)
Aged 33, Wonjongkam has already engaged in 80 fights and recently reclaimed the WBC title. A throwback fighter, he deserves his place on the list.
8. Andre Ward
United States (22-0, 13KOs)
Ward outfoxed Mikkel Kessler to take the WBA belt and has since beaten Allan Green. His bout against Andre Dirrell in September should confirm his class.
9. Juan Manuel Lopez
Puerto Rico (29-0, 26KOs)
The unbeaten former super-bantamweight world champion stepped up to claim the WBO title in January and his next engagement is against Rafael Marquez in November.
10. Yuriorkis Gamboa
Cuba (18-0, 15KOs)
Gamboa, the WBA title-holder, faces IBF title-holder Orlando Salido in September in what should be an explosive enounter. After that, Juan Manuel Lopez?