Check out my rankings within each division by clicking on the links below.
Who is the best fighter regardless of weight class? See ESPN's pound-for-pound rankings.
For a list of the current champions in all weight classes, click here.
Note: Results through Nov. 9. In an effort to provide the most up-to-date rankings, ESPN.com's division-by-division boxing rankings will be updated every Tuesday.
More Divisional Rankings
Heavyweight - Cruiserweight - Light heavyweight - Super middleweight
Middleweight - Junior middleweight - Welterweight - Junior welterweightLightweight - Junior lightweight - Featherweight - Junior featherweightBantamweight - Junior bantamweight - Flyweight - Junior flyweight/Strawweight
HEAVYWEIGHT DIVISION (UNLIMITED)
1. Wladimir Klitschko (64-3)
Klitschko fought in the United States for the first time since 2008, taking on Philadelphia contender Bryant Jennings in front of a packed house at Madison Square Garden on April 25. Klitschko dominated en route to a one-sided decision victory. After celebrating nine years as champion a few days before the fight, Klitschko retained the title for the 18th consecutive time (third in heavyweight history) and moved to 25-2 overall in world title fights, tying the great Joe Louis' record for participating in the most heavyweight world title bouts (27). His mandatory defense against British big man Tyson Fury (24-0), the first of a new five-fight contract extension with longtime German TV partner RTL, was scheduled for Oct. 24, but Klitschko suffered a calf injury and the fight was postponed for a month.
Next: Nov. 28 vs. Fury
2. Alexander Povetkin (30-1)
Dropped four times in a shutout loss in a horrible performance challenging champion Wladimir Klitschko in October 2013, Povetkin has rebounded with four good wins in a row, including a crushing first-round knockout -- 91 seconds -- of Mike Perez on May 22 in Moscow to become the mandatory challenger for titleholder Deontay Wilder. Since the shot at Wilder won't come until 2016, Povetkin stayed busy on Nov. 4 by scoring a 12th-round stoppage of Poland's Mariusz Wach, whose only previous loss was by decision in a 2012 title fight against Wladimir Klitschko.
Next: TBA
3. Tyson Fury (24-0)
On Feb. 28, England's Fury scored his fourth knockout in a row as he dismantled and stopped Christian Hammer in the eighth round of a one-sided fight. Fury also dropped his opponent. By accepting the fight, Fury risked his status as champion Wladimir Klitschko's mandatory challenger, but once he was safely through the fight, the shot against Klitschko (64-3) was scheduled for Oct. 24 at a 55,000-seat soccer stadium in Germany. However, when Klitschko suffered a calf injury, the fight was postponed.
Next: Nov. 28 vs. Klitschko
4. Deontay Wilder (35-0)
Wilder, the 2008 U.S. Olympic bronze medalist, fought a collection of has-beens and nobodies until facing a real opponent in Bermane Stiverne in January. Wilder passed that test and won a world title by one-sided decision, but since then it's been back to poor opposition for his first two defenses: the radically unqualified Eric Molina, who nonetheless put up a good fight and hurt Wilder in the fourth round before being stopped in the ninth, and the even more unknown Frenchman Johann Duhaupas, who showed great heart in taking a beating for 11 rounds of a one-sided fight on Sept. 26. Wilder is due to face mandatory challenger Alexander Povetkin (30-1), but since he won't be available, Wilder will return to headline a Showtime card at the Barclays Center in Brooklyn, New York, possibly against Vyacheslav "Czar" Glazkov (21-0-1).
Next: Jan. 16 vs. TBA
5. Ruslan Chagaev (34-2-1)
In July 2014, Chagaev outpointed Fres Oquendo in a terrible fight to claim the vacant version of a secondary title. Oquendo was owed a contractual rematch and forced the issue by winning a lawsuit in federal court, meaning Chagaev cannot take part in a title defense until he gives Oquendo a rematch. His handlers, however, planned a title defense anyway against Francesco Pianeta, whose only previous loss came by knockout to champion Wladimir Klitschko in 2013. Then they made a settlement with Oquendo (37-8), who was due to get his rematch after Chagaev blew away Pianeta in a first-round knockout on July 11. Chagaev-Oquendo II was scheduled for Oct. 17 but was called off after Oquendo suffered a serious shoulder injury in training.
Next: TBA
6. Bermane Stiverne (24-2-1)
Stiverne's first title defense on Jan. 17 against mandatory challenger Deontay Wilder could not have gone worse, as he lost a wide unanimous decision and his title then spent two nights in a Las Vegas hospital being treated for severe dehydration. He has not fought since. Plans for a return bout against Cuban puncher Luis Ortiz (22-0) in an excellent match on Oct. 17 on the Gennady Golovkin-David Lemieux HBO PPV undercard were not finalized. Instead, he will return to face journeyman Derric Rossy (30-10).
Next: Nov. 14 vs. Rossy
7. Kubrat Pulev (21-1)
Bulgaria's Pulev, a 2008 Olympian, got his mandatory title shot against Wladimir Klitschko on Nov. 15, 2014, and got hammered. Pulev landed a couple of solid right hands, but Klitschko abused the challenger with left hooks, dropping him four times with that weapon in a brutal fifth-round knockout. Pulev made his ring return on Oct. 17 and pounded out an eight-round shutout victory against 41-year-old Argentine journeyman George Arias.
Next: TBA
8. Bryant Jennings (19-1)
Although Philadelphia's Jennings lost a lopsided decision to champion Wladimir Klitschko on April 25, Jennings had a couple of good moments in the bout and exceeded expectations by going the distance against an all-time great champion. It was a loss but certainly a forgivable one. In the long run, it could make Jennings a better fighter. He turned down a chance to face Luis Ortiz on the Oct. 17 Gennady Golovkin-David Lemieux HBO PPV undercard. After Ortiz (23-0) knocked out another opponent to win a vacant interim belt on that card, the sides came together and finalized their excellent match, which will headline the final HBO card of 2015.
Next: Dec. 19 vs. Ortiz
9. Vyacheslav "Czar" Glazkov (21-0-1)
Glazkov, a 2008 Olympic bronze medalist from Ukraine, did very little in a March 14 title eliminator against former two-time cruiserweight titlist Steve Cunningham yet came away with an undeserved decision win in a terrible fight to become one of champion Wladimir Klitschko's mandatory challengers. Since the mandatory isn't due yet, Glazkov stayed busy with a one-sided fourth-round knockout of no-hoper Kertson Manswell on Aug. 15 in Russia. Although Glazkov is Klitschko's mandatory, he might instead get a chance to challenge Deontay Wilder (35-0) for his title on Jan.16 on Showtime.
Next: TBA
10. Steve Cunningham (28-7-1)
On Aug. 14, Cunningham fought to a draw in a legitimately close fight with former light heavyweight champion Antonio Tarver, who wound up testing positive for a banned substance for the second time in his career. The result likely will be changed to a no decision. Regardless, Cunningham, who is a very small heavyweight at 204 pounds or so, plans to return to cruiserweight, where he twice won world titles.
Next: TBA
