Cruiserweight has proven to be the best weight class for Gilberto Ramirez as "Zurdo" notched a career-best victory on Saturday in Riyadh, Saudi Arabia, with a unanimous decision over Chris Billam-Smith to unify the WBO and WBA cruiserweight titles.
Ramirez was a titleholder at 168 pounds and showed power at 175 (though he lost to Dmitry Bivol in a title shot) but through three fights at cruiserweight, Ramirez appears to be an imposing force. The Mexican has the size to compete with fellow 200-pounders while maintaining the speed and fluidity of a smaller fighter.
With the victory, Ramirez moved to No. 2 in ESPN's cruiserweight rankings and is primed for a unification bout with No. 1 ranked Jai Opetaia. Noel Mikaelian, who holds the WBC title, moves up to No. 4, while Billam-Smith falls from No. 2 to No. 5.
On the undercard Saturday, Arnold Barboza Jr. earned an upset win over former unified champion Jose Ramirez via decision. And with it, Barboza enters ESPN's junior welterweight rankings at No. 8 while Ramirez falls from No. 7 to No. 10.
William Zepeda stayed on track for a lightweight title shot against Shakur Stevenson with a hard-earned split-decision victory over former titleholder Tevin Farmer. Farmer floored Zepeda in Round 4, and though he lost, Farmer earned another opportunity for a meaningful fight. Zepeda switches spots with Stevenson in the rankings ahead of a possible meeting between the two in February.
Also on the Ramirez vs. Billam-Smith fight card, ESPN's No. 1 ranked strawweight, Oscar Collazo, maintained the top spot at 105 pounds with a seventh-round TKO of Knockout CP Freshmart, who dropped to No. 5.
Finally, on the Mike Tyson vs. Jake Paul undercard, Mario Barrios and Abel Ramos traded knockdowns in a WBC welterweight title fight that resulted in a draw. Barrios, who was the major betting favorite, kept his WBC title. Barrios drops one spot to No. 5, while Ramos enters at No. 10, replacing Raul Curiel.
ESPN's divisional boxing rankings highlight the best in the sport in every weight class. Rankings will change based on recent results and performances. Fighters who have announced they are moving to a different weight class will be ranked in that new division, if warranted, only once they fight in that weight class. Fighters who currently own titles in two divisions can be ranked in both.
Fighters who haven't competed in the past 12 months -- and don't have a fight scheduled -- will be dropped from the rankings until they fight again. Any fighter who tests positive for a performance-enhancing substance will also be removed. That boxer will be eligible to re-enter the rankings after his next bout.
For a list of the current champions in all weight classes, click here. For ESPN women's divisional rankings, click here.
Heavyweight - Cruiserweight - Light heavyweight - Super middleweight - Middleweight - Junior middleweight - Welterweight - Junior welterweight - Lightweight - Junior lightweight - Featherweight - Junior featherweight - Bantamweight - Junior bantamweight - Flyweight - Junior flyweight - Strawweight
HEAVYWEIGHT (UNLIMITED)
1. Oleksandr Usyk 
Previous ranking: No. 1
Record: 22-0, 14 KOs
Last: W (SD12) Tyson Fury, May 18 ( Watch this fight on ESPN+ PPV)
Next: Dec. 21 vs. Tyson Fury
2. Tyson Fury Previous ranking: No. 2
Record: 34-1-1, 24 KOs
Last: L (SD12) Oleksandr Usyk, May 18 ( Watch this fight on ESPN+ PPV)
Next: Dec. 21 vs. Oleksandr Usyk
3. Daniel Dubois 
Previous ranking: No. 6
Record: 22-2, 21 KOs
Last: W (KO5) Anthony Joshua, Sept. 21
Next: TBA
4. Joseph Parker Previous ranking: No. 4
Record: 35-3, 23 KOs
Last: W (MD12) Zhilei Zhang, March 8
Next: TBA
5. Anthony Joshua 
Previous ranking: No. 3
Record: 28-4, 25 KOs
Last: L (KO5) Daniel Dubois, Sept. 21
Next: TBA
6. Zhilei Zhang Previous ranking: No. 5
Record: 27-2-1, 22 KOs
Last: W (KO5) Deontay Wilder, June 1
Next: TBA
7. Martin Bakole Previous ranking: No. 7
Record: 21-1, 16 KOs
Last: W (KO5) Jared Anderson, Aug. 3
Next: TBA
8. Agit Kabayel Previous ranking: No. 8
Record: 25-0, 17 KOs
Last: W (KO7) Frank Sanchez, May 18
Next: TBA
9. Jarrell Miller Previous ranking: No. 9
Record: 26-1-2, 22 KOs
Last: Draw (MD12) Andy Ruiz Jr., Aug. 3
Next: TBA
10. Andy Ruiz Jr. Previous ranking: No. 10
Record: 35-2-1, 22 KOs
Last: Draw (MD12) Jarrell Miller, Aug. 3
Next: TBA
CRUISERWEIGHT (UP TO 200 POUNDS)
1. Jai Opetaia Previous ranking: No. 1
Record: 26-0, 20 KOs
Last: W (TKO6) Jack Massey, Oct. 12
Next: TBA
2. Gilberto Ramirez Previous ranking: No. 4
Record: 46-1, 30 KOs
Last: W (UD12) Chris Billam-Smith, Nov. 16
Next: TBA
3. Mairis Briedis Previous ranking: No. 3
Record: 28-3, 20 KOs
Last: L (UD12) Jai Opetaia, May 18
Next: TBA
4. Norair Mikaeljan Previous ranking: No. 5
Record: 27-2, 12 KOs
Last: W (TKO3) Ilunga Makabu, Nov. 4
Next: TBA
5. Chris Billam-Smith Previous ranking: No. 2
Record: 20-2, 13 KOs
Last: L (UD12) Gilberto Ramirez, Nov. 16
Next: TBA
6. Ilunga Makabu Previous ranking: No. 6
Record: 29-4, 25 KOs
Last: L (TKO3) Norair Mikaeljan, Nov. 4
Next: TBA
7. Mateusz Masternak Previous ranking: No. 7
Record: 48-6, 32 KOs
Last: W (TKO8) Jean Jacques Olivier, April 20
Next: TBA
8. Michal Cieslak Previous ranking: No. 8
Record: 26-2, 20 KOs
Last: W (TKO4) Juan Diaz, April 20
Next: TBA
9. Richard Riakporhe Previous ranking: No. 9
Record: 17-1, 13 KOs
Last: L (UD12) Chris Billam-Smith, June 15
Next: TBA
10. Ryan Rozicki Previous ranking: No. 10
Record: 20-1, 19 KOs
Last: W (TKO1) Olanrewaju Durodola, Dec. 2
Next: Dec. 7 vs. Norair Mikaeljan
LIGHT HEAVYWEIGHT (UP TO 175 POUNDS)
Artur Beterbiev comes away with a majority decision victory over Dmitry Bivol in front of a packed crowd in Saudi Arabia.
1. Artur Beterbiev Previous ranking: No. 2
Record: 21-0, 20 KOs
Last: W (MD12) Dmitry Bivol, Oct. 12
Next: TBA
2. Dmitry Bivol Previous ranking: No. 1
Record: 23-1, 12 KOs
Last: L (MD12) Artur Beterbiev, Oct. 12
Next: TBA
3. David Benavidez Previous ranking: No. 3
Record: 29-0, 24 KOs
Last: W (UD12) Oleksandr Gvozdyk, June 15
Next: TBA
4. David Morrell Previous ranking: No. 4
Record: 11-0, 9 KOs
Last: W (UD12) Radivoje Kalajdzic, Aug. 3
Next: TBA
5. Joshua Buatsi Previous ranking: No. 5
Record: 19-0, 13 KOs
Last: W (SD12) Willy Hutchinson, Sept. 21
Next: TBA
6. Anthony Yarde Previous ranking: No. 6
Record: 25-3, 24 KOs
Last: W (UD10) Ralfs Vilcans, Oct. 19
Next: TBA
7. Callum Smith Previous ranking: No. 7
Record: 29-2, 21 KOs
Last: L (TKO7) Artur Beterbiev, Jan. 13
Next: TBA
8. Oleksandr Gvozdyk Previous ranking: No. 8
Record: 20-2, 16 KOs
Last: L (UD12) David Benavidez, June 15
Next: TBA
9. Conor Wallace Previous ranking: No. 9
Record: 14-1, 10 KOs
Last: W (SD12) Jerome Pampellone, Aug. 28
Next: TBA
10. Willy Hutchinson Previous ranking: No. 10
Record: 18-2, 13 KOs
Last: L (SD12) Joshua Buatsi, Sept. 21
Next: TBA
SUPER MIDDLEWEIGHT (UP TO 168 POUNDS)
1. Canelo Alvarez Previous ranking: No. 1
Record: 62-2-2, 39 KOs
Last: W (UD12) Edgar Berlanga, Sept. 14
Next: TBA
2. Christian Mbilli Previous ranking: No. 2
Record: 28-0, 23 KOs
Last: W (UD10) Sergiy Derevyanchenko, Aug. 17
Next: TBA
3. Jaime Munguia Previous ranking: No. 3
Record: 44-1, 35 KOs
Last: W (KO10) Erik Bazinyan, Sept. 20
Next: TBA
4. Caleb Plant Previous ranking: No. 4
Record: 62-2-2, 39 KOs
Last: W (TKO9) Trevor McCumby, Sept. 14
Next: TBA
5. Diego Pacheco Previous ranking: No. 5
Record: 22-0, 18 KOs
Last: W (KO6) Maciej Sulecki, Aug. 31
Next: TBA
6. Edgar Berlanga Previous ranking: No. 6
Record: 22-1, 17 KOs
Last: L (UD12) Canelo Alvarez, Sept. 14
Next: TBA
7. Demetrius Andrade Previous ranking: No. 7
Record: 32-1, 19 KOs
Last: L (TKO6) David Benavidez, Nov. 25
Next: TBA
8. Bektemir Melikuziev Previous ranking: No. 8
Record: 14-1, 10 KOs
Last: W (SD12) David Stevens, Nov. 2
Next: TBA
9. Osleys Iglesias Previous ranking: No. 10
Record: 11-0, 10 KOs
Last: W (TKO2) Sena Agbeko, Aug. 17
Next: TBA
10. Erik Bazinyan Previous ranking: No. 9
Record: 32-1-1, 23 KOs
Last: L (KO10) Jaime Munguia, Sept. 20
Next: TBA
Editor's note: David Benavidez moved up to light heavyweight.
MIDDLEWEIGHT (UP TO 160 POUNDS)
Janibek Alimkhanuly unifies two middleweight titles with a sixth-round stoppage of Vincenzo Gualtieri.
1. Janibek Alimkhanuly Previous ranking: No. 1
Record: 16-0, 11 KOs
Last: W (TKO9) Andrei Mikhailovich, Oct. 4
Next: TBA
2. Carlos Adames Previous ranking: No. 2
Record: 24-1, 18 KOs
Last: W (UD12) Terrell Gausha, June 15
Next: TBA
3. Erislandy Lara Previous ranking: No. 3
Record: 31-3-3, 19 KOs
Last: W TKO9) Danny Garcia, Sept. 14
Next: TBA
4. Chris Eubank Jr. Previous ranking: No. 4
Record: 33-3, 25 KOs
Last: W (KO7) Kamil Szeremeta, Oct. 12
Next: TBA
5. Jermall Charlo Previous ranking: No. 5
Record: 33-0, 22 KOs
Last: W (UD10) Jose Benavidez Jr., Nov. 25
Next: TBA
6. Hamzah Sheeraz Previous ranking: No. 6
Record: 21-0, 17 KOs
Last: W (TKO2) Tyler Denny, Sept. 21
Next: TBA
7. Meiirim Nursultanov Previous ranking: No. 7
Record: 20-0, 11 KOs
Last: W (UD12) Julio Alamos, Nov. 17
Next: TBA
8. Liam Smith Previous ranking: No. 9
Record: 33-4-1, 20 KOs
Last: L (TKO10) Chris Eubank Jr., Sept. 2 (Watch this fight on ESPN+)
Next: TBA
9. Kyrone Davis Previous ranking: No. 9
Record: 19-3-1, 6 KOs
Last: W (SD10) Elijah Garcia, June 15
Next: TBA
10. Anauel Ngamissengue Previous ranking: No. 10
Record: 14-0, 9 KOs
Last: W (TKO3) Sandro Jajanidze, June 8
Next: TBA
Editor's note: Gennadiy Golovkin has been removed for inactivity.
JUNIOR MIDDLEWEIGHT (UP TO 154 POUNDS)
1. Terence Crawford Previous ranking: No. 1
Record: 41-0, 31 KOs
Last: W (UD12) Israil Madrimov, Aug. 3
Next: TBA
2. Israil Madrimov Previous ranking: No. 2
Record: 10-1-1, 7 KOs
Last: L (UD12) Terence Crawford, Aug. 3
Next: TBA
3. Sebastian Fundora Previous ranking: No. 3
Record: 21-1-1, 13 KOs
Last: W (SD12) Tim Tszyu, March 30
Next: TBA
4. Bakhram Murtazaliev Previous ranking: No. 8
Record: 23-0, 17 KOs
Last: W (TKO3) Tim Tszyu, Oct 19
Next: TBA
5. Vergil Ortiz Jr. Previous ranking: No. 4
Record: 22-0, 21 KOs
Last: W (UD12) Serhii Bohachuk, Aug. 10
Next: TBA
6. Serhii Bohachuk Previous ranking: No. 6
Record: 24-2, 23 KOs
Last: L (UD12) Vergil Ortiz Jr., Aug. 10
Next: TBA
7. Erickson Lubin Previous ranking: No. 7
Record: 26-2, 18 KOs
Last: W (UD12) Jesus Ramos Jr., Sept. 30
Next: TBA
8. Tim Tszyu Previous ranking: No. 5
Record: 24-2, 17 KOs
Last: L (TKO3) Bakhram Murtazaliev, Oct. 19
Next: TBA
9. Jesus Ramos Jr. Previous ranking: No. 9
Record: 21-1, 17 KOs
Last: W (TKO9) Johan Gonzalez, May 4
Next: TBA
10. Charles Conwell Previous ranking: No. 10
Record: 20-0, 15 KOs
Last: W (KO2) Khiary Gray, Aug. 10
Next: TBA
Editor's note: Jermell Charlo has been removed for inactivity in the division. Brian Castano have been removed for inactivity.
WELTERWEIGHT (UP TO 147 POUNDS)
1. Jaron Ennis Previous ranking: No. 1
Record: 33-0, 29 KOs
Last: W (UD12) Karen Chukhadzhian, Nov. 9
Next: TBA
2. Errol Spence Jr. Previous ranking: No. 2
Record: 28-1, 22 KOs
Last: L (TKO10) Terence Crawford, July 29, 2023
Next: TBA
3. Eimantas Stanionis Previous ranking: No. 3
Record: 15-0, 9 KOs
Last: W (UD12) Gabriel Maestre, May 4
Next: TBA
4. Brian Norman Jr. Previous ranking: No. 5
Record: 26-0, 20 KOs
Last: W (KO10) Giovani Santillan, May 18
Next: TBA
5. Mario Barrios Previous ranking: No. 4
Record: 29-2-1, 18 KOs
Last: SD (Split draw 12) Abel Ramos, Nov. 15
Next: TBA
6. Conor Benn Previous ranking: No. 6
Record: 23-0, 14 KOs
Last: W (UD12) Peter Dobson, Feb. 3
Next: TBA
7. Souleymane Cissokho Previous ranking: No. 7
Record: 17-0, 9 KOs
Last: W (UD12) Isaias Lucero, Nov. 4
Next: TBA
8. Shakhram Giyasov Previous ranking: No. 8
Record: 16-0, 9 KOs
Last: W (SD10) Miguel Parra, July 31
Next: TBA
9. Jin Sasaki Previous ranking: No. 9
Record: 18-1-1, 17 KOs
Last: W (TKO7) Qamil Balla, Sept. 3
Next: TBA
10. Abel Ramos Previous ranking: No. N/R
Record: 28-6-3, 22 KOs
Last: SD (Split draw 12) Abel Ramos, Nov. 15
Next: TBA
Editor's note: Cody Crowley has been removed for inactivity.
JUNIOR WELTERWEIGHT (UP TO 140 POUNDS)
Teofimo Lopez wins via unanimous decision over Steve Claggett in Miami.
1. Teofimo Lopez Previous ranking: No. 1
Record: 21-1, 13 KOs
Last: W (UD12) Steve Claggett, June 29
Next: TBA
2. Devin Haney Previous ranking: No. 2
Record: 31-0-1, 15 KOs
Last: No contest (NC12) Ryan Garcia, April 20
Next: TBA
3. Jack Catterall Previous ranking: No. 3
Record: 30-1, 13 KOs
Last: W (UD12) Regis Prograis, Oct. 26
Next: TBA
4. Liam Paro Previous ranking: No. 4
Record: 25-0, 15 KOs
Last: W (UD12) Subriel Matias, June 15
Next: Dec. 7 vs. Richardson Hitchins
5. Alberto Puello Previous ranking: No. 5
Record: 23-0, 10 KOs
Last: W (SD12) Gary Antuanne Russell, June 15
Next: TBA
6. Jose Valenzuela Previous ranking: No. 6
Record: 14-2, 9 KOs
Last: W (SD12) Gary Antuanne Russell, June 15
Next: TBA
7. Subriel Matias Previous ranking: No. 8
Record: 21-2, 21 KOs
Last: W (TKO2) Roberto Ramirez, Nov. 9
Next: TBA
8. Arnold Barboza Jr. Previous ranking: N/R
Record: 31-0, 11 KOs
Last: W (UD10) Jose Ramirez, Nov. 16
Next: TBA
9. Josh Taylor Previous ranking: No. 9
Record: 19-2, 13 KOs
Last: L (UD12) Jack Catterall, May 25
Next: TBA
10. Jose Ramirez Previous ranking: No. 7
Record: 29-2, 18 KOs
Last: L (UD10) Arnold Barboza Jr., Nov. 16
Next: TBA
Editor's note: Ryan Garcia has been removed for testing positive ahead of his win over Devin Haney.
LIGHTWEIGHT (UP TO 135 POUNDS)
Vasiliy Lomachenko throws an onslaught of punches to the body of George Kambosos Jr. that forces the referee to stop the fight in the 11th round.
1. Gervonta Davis Previous ranking: No. 1
Record: 30-0, 28 KOs
Last: W (KO8) Frank Martin, June 15
Next: TBA vs. Lamont Roach
2. Vasiliy Lomachenko Previous ranking: No. 2
Record: 18-3, 12 KOs
Last: W (TKO11) George Kambosos Jr., May 11
Next: TBA
3. Shakur Stevenson Previous ranking: No. 4
Record: 22-0, 10 KOs
Last: W (UD12) Artem Harutyunyan, July 6
Next: TBA
4. William Zepeda Previous ranking: No. 3
Record: 32-0, 27 KOs
Last: W (SD10) Tevin Farmer, Nov. 16
Next: TBA
5. Denys Berinchyk Previous ranking: No. 5
Record: 19-0, 9 KOs
Last: W (SD12) Emanuel Navarrete, May 18
Next: TBA
6. Keyshawn Davis Previous ranking: No. 6
Record: 12-0, 8 KOs
Last: W (KO2) Gustavo Lemos, Nov. 8
Next: TBA
7. George Kambosos Jr. Previous ranking: No. 7
Record: 21-3, 10 KOs
Last: L (TKO11) Vasiliy Lomachenko, May 11
Next: TBA
8. Frank Martin Previous ranking: No. 8
Record: 18-1, 12 KOs
Last: L (KO8) Gervonta Davis, June 15
Next: TBA
9. Andy Cruz Previous ranking: No. 9
Record: 4-0, 2 KOs
Last: W (KO7) Antonio Moran, Aug. 3
Next: TBA
10. Raymond Muratalla Previous ranking: No. 10
Record: 21-0, 16 KOs
Last: W (KO2) Jesus Perez, Nov. 2
Next: TBA
JUNIOR LIGHTWEIGHT (UP TO 130 POUNDS)
Emanuel Navarrete comes out victorious in a 12-round classic vs. Oscar Valdez in Arizona.
1. Emanuel Navarrete Previous ranking: No. 1
Record: 38-2-1, 31 KOs
Last: L (SD12) Denys Berinchyk, May 18
Next: Dec. 7 vs. Oscar Valdez
2. Anthony Cacace Previous ranking: No. 2
Record: 23-1, 8 KOs
Last: W (UD12) Josh Warrington, Sept. 21
Next: TBA
3. O'Shaquie Foster Previous ranking: No. 3
Record: 23-3, 12 KOs
Last:W (SD12) Robson Conceicao, Nov. 2
Next:TBA
4. Robson Conceicao Previous ranking: No. 4
Record: 19-3-1 1 NC, 9 KOs
Last:L (SD12) O'Shaquie Foster, Nov. 2
Next:TBA
5. Oscar Valdez Previous ranking: No. 5
Record: 32-2, 24 KOs
Last: W (TKO7) Liam Wilson, March 29
Next: Dec. 7 vs. Emnanuel Navarrete
6. Lamont Roach Previous ranking: No. 6
Record: 25-1-1 10 KOs
Last: W (TKO8) Feargal McCrory, June 28
Next: Dec. 14 vs. Gervonta Davis
7. Raymond Ford Previous ranking: No. N/R
Record: 16-1-1, 8 KOs
Last: W (UD10) Orlando Gonzalez, Nov. 9
Next: TBA
8. Joe Cordina Previous ranking: No. 7
Record: 17-1, 9 KOs
Last: L (TKO7) Anthony Cacace, May 18
Next: TBA
9. Eduardo Nunez Previous ranking: No. 8
Record: 26-1 26 KOs
Last: W (TKO2) Oscar Escandon, Oct. 28
Next: TBA
10. Andres Cortes Previous ranking: No. 9
Record: 22-0, 12 KOs
Last: W (UD10) Abraham Nova, June 21
Next: TBA
FEATHERWEIGHT (UP TO 126 POUNDS)
Angelo Leo needs one punch to flatten Venado Lopez and claim the IBF belt for the knockout of the year candidate.
1. Nick Ball Previous ranking: No. 1
Record: 21-0-1, 12 KOs
Last: W (TKO10) Ronny Rios, Oct. 5
Next: TBA
2. Rafael Espinoza Previous ranking: No. 2
Record: 25-0, 21 KOs
Last: W (TKO4) Sergio Chirino, June 21
Next: Dec. 7 vs. Robeisy Ramirez
3. Angelo Leo Previous ranking: No. 3
Record: 25-1, 12 KOs
Last: W (KO10) Luis Alberto Lopez, Aug. 10
Next: TBA
4. Brandon Figueroa Previous ranking: No. 4
Record: 25-1-1, 19 KOs
Last: W (KO9) Jessie Magdaleno, May 4
Next: TBA vs. Stephen Fulton
5. Luis Alberto Lopez Previous ranking: No. 5
Record: 30-3, 17 KOs
Last: L (TKO10) Angelo Leo, Aug. 10
Next: TBA
6. Rey Vargas Previous ranking: No. 6
Record: 36-1, 22 KOs
Last: Split draw (SD12) Nick Ball, March 8
Next: TBA
7. Robeisy Ramirez Previous ranking: No. 8
Record: 14-2, 9 KOs
Last: W (TKO7) Brandon Leon Benitez, June 29
Next: Dec. 7 vs. Rafael Espinoza
8. Stephen Fulton Previous ranking: No. 9
Record: 22-1, 8 KOs
Last: W (SD10) Carlos Castro, Sept. 14
Next: TBA vs. Brandon Figueroa
9. Bruce Carrington Previous ranking: 10
Record: 14-0, 8 KOs
Last: W (UD8) Dana Coolwell, Nov. 15
Next: TBA
10. Tomoki Kameda Previous ranking: N/R
Record: 42-4, 23 KOs
Last: W (SD12) Lerato Dlamini, Aug. 24
Next: TBA
Editor's note: Leigh Wood has been removed for inactivity.
JUNIOR FEATHERWEIGHT (UP TO 122 POUNDS)
Naoya Inoue connects with consecutive jabs in Round 6 before picking up the TKO win over TJ Doheny in Round 7 to retain the undisputed junior featherweight championship.
1. Naoya Inoue Previous ranking: No. 1
Record: 28-0, 25 KOs
Last: W (TKO7) TJ Doheny, Sept. 3 (Watch this fight on ESPN+)
Next: Dec. 24 vs. Sam Goodman
2. Marlon Tapales Previous ranking: No. 3
Record: 38-4, 20 KOs
Last: W (KO1) Nattapong Jankaew, May 10
Next: TBA
3. Murodjon Akhmadaliev Previous ranking: No. 4
Record: 12-1, 9 KOs
Last: W (TKO8) Kevin Gonzalez, Dec. 16
Next: TBA
4. Sam Goodman Previous ranking: No. 5
Record: 19-0, 8 KOs
Last: W (UD12) Thachtana Luangphon, July 10
Next: Dec. 24 vs. Naoya Inoue
5. Luis Nery Previous ranking: No. 6
Record: 35-2, 27 KOs
Last: L (TKO6) Naoya Inoue, May 6
Next: TBA
6. John Riel Casimero Previous ranking: No. 7
Record: 33-4-1, 22 KOs
Last: Draw (TD4) Yukinori Oguni, Oct. 12
Next: TBA
7. Elijah Pierce Previous ranking: No. 8
Record: 19-2, 16 KOs
Last: W (TKO4) Arthur Villanueva, March 29
Next: TBA
8. Liam Davies Previous ranking: No. 9
Record: 16-0, 8 KOs
Last: L (SD12) Shabaz Masoud, Nov. 2
Next: TBA
9. TJ Doheny Previous ranking: No. 10
Record: 26-5, 20 KOs
Last: L (TKO7) Naoya Inoue, Sept. 3
Next: TBA
10. Ramon Cardenas Previous ranking: N/R
Record: 25-1, 14 KOs
Last: W (KO9) Jesus Ramirez Rubio, April 24
Next: TBA
Editor's note: Stephen Fulton moved up to featherweights. Ra'eese Aleem has been removed for inactivity.
BANTAMWEIGHT (UP TO 118 POUNDS)
Junto Nakatani drops Petch Sor Chitpattana twice in the sixth round, including a heavy left-handed punch to close out the fight.
1. Junto Nakatani Previous ranking: No. 1
Record: 28-0, 21 KOs
Last: W (TKO6) Petch Sor Chitpattana, Oct. 14
Next: TBA
2. Ryosuke Nishida Previous ranking: No. 3
Record: 9-0, 1 KO
Last: W (UD12) Emmanuel Rodriguez, May 4
Next: TBA
3. Yoshiki Takei Previous ranking: No. 4
Record: 10-0, 8 KOs
Last: W (UD12) Daigo Higa, Sept. 3
Next: TBA
4. Seiya Tsutsumi Previous ranking: N/R
Record: 12-0-2, 8 KOs
Last: W (UD12) Takuma Inoue, Oct. 13
Next: TBA
5. Takuma Inoue Previous ranking: No. 2
Record: 20-2, 5 KOs
Last: L (UD12) Seiya Tsutsumi, Oct. 13
Next: TBA
6. Roman "Chocolatito" Gonzalez Previous ranking: No. 5
Record: 52-4, 42 KOs
Last: W (TKO10) Rober Barrera, July 12
Next: TBA
7. Alexandro Santiago Previous ranking: No. 6
Record: 28-4-5, 14 KOs
Last: L (TKO6) Junto Nakatani, Feb. 24
Next: TBA
8. Emmanuel Rodriguez Previous ranking: No. 7
Record: 22-3, 13 KOs
Last: L (UD10) Khalid Twaiti, Oct 10
Next: TBA
9. Sho Ishida Previous ranking: No. 8
Record: 33-4, 16 KOs
Last: L (UD12) Takuma Inoue, May 6
Next: TBA
10. Jason Moloney Previous ranking: No. 9
Record: 27-3, 19 KOs
Last: L (UD12) Yoshiki Takei, May 6
Next: TBA
Editor's note: Gary Antonio Russell and Kal Yafai have been remove for inactivity.
JUNIOR BANTAMWEIGHT (UP TO 115 POUNDS)
1. Jesse Rodriguez Previous ranking: No. 1
Record: 21-0, 14 KOs
Last: W (TKO2) Pedro Guevara, Nov. 9
Next: TBA
2. Fernando Martinez Previous ranking: No. 2
Record: 17-0, 9 KOs
Last: W (UD12) Kazuto Ioka, July 7
Next: TBA
3. Juan Francisco Estrada Previous ranking: No. 3
Record: 44-4, 28 KOs
Last: L (KO7) Jesse "Bam" Rodriguez, June 29
Next: TBA
4. Kazuto Ioka Previous ranking: No. 4
Record: 31-3-1, 16 KOs
Last: L (UD12) Fernando Martinez, July 7
Next: TBA
5. Carlos Cuadras Previous ranking: No. 5
Record: 42-5-1, 28 KOs
Last: W (SD12) Pedro Guevara, Nov. 17
Next: TBA
6. Phumelele Cafu Previous ranking: 6
Record: 11-0-3, 8 KOs
Last: W (SD12) Kosei Tanaka, Oct. 14
Next: TBA
7. Kosei Tanaka Previous ranking: No. 7
Record: 20-2, 11 KOs
Last: L (SD12) Phumelele Cafu, Oct. 14
Next: TBA
8. KJ Cataraja Previous ranking: No. 9
Record: 17-0, 13 KOs
Last: W (UD8) Jun Blazo, Feb. 13
Next: TBA
9. David Jimenez Previous ranking: No. 10
Record: 16-1, 11 KOs
Last: W (UD12) John Ramirez, April 20
Next: TBA
10. Suzumi Takayama Previous ranking: N/R
Record: 8-0, 7 KOs
Last: W (TKO3) Akio Furutani, April 25
Next Nov. 12 vs. Isao Aoyama
Editor's note: Srisaket Sor Rungvisai has moved to bantamweight.
FLYWEIGHT (UP TO 112 POUNDS)
1. Sunny Edwards Previous ranking: No. 1
Record: 21-1, 4 KOs
Last: W (TUD9) Adrian Curiel, June 29
Next: Nov. 30 vs. Galal Yafai
2. Seigo Yuri Akui Previous ranking: No. 2
Record: 21-2-1, 11 KOs
Last: W (SD12) Thananchai Charunphak, Oct. 13
Next: TBA
3. Kenshiro Teraji Previous ranking: N/R
Record: 24-1, 15 KOs
Last: W (TKO11) Cristofer Rosales, Oct. 13
Next: TBA
4. Angel Ayala Previous ranking: No. 3
Record: 17-0, 7 KOs
Last: W (UD10) Felix Alvarado, Oct. 14
Next: TBA
5. Angelino Cordova Previous ranking: No. 4
Record: 18-0-1, 12 KOs
Last: No Contest (NC) Julio Cesar Martinez, March 30
Next: TBA
6. Anthony Olascuaga Previous ranking: No. 5
Record: 7-1, 5 KOs
Last: No Contest (NC1) Jonathan Gonzalez, Oct. 14
Next TBA
7. Ricardo Sandoval Previous ranking: No. 6
Record: 24-2, 17 KOs
Last: W (KO10) Angel Acosta, July 6
Next: TBA
8. Artem Dalakian Previous ranking: No. 7
Record: 22-1, 15 KOs
Last: L (UD12) Seigo Yuri Akui, Jan. 23
Next TBA
9. Galal Yafai Previous ranking: No. 8
Record: 7-0, 5 KOs
Last: W (TKO8) Agustin Gauto, April 6
Next: Nov. 30 vs. Sunny Edwards
10. Felix Alvarado Previous ranking: No. 9
Record: 41-4, 35 KOs
Last: W (UD10) Francisco Gomez Sanchez, July 13
Next TBA
Editor's note: Jesse Rodriguez has moved to junior bantamweight. Julio Cesar Martinez has been removed for testing positive ahead of his win over Angelino Cordova.
JUNIOR FLYWEIGHT (UP TO 108 POUNDS)
1. Jonathan Gonzalez Previous ranking: 2
Record: 28-3-1, 14 KOs
Last: No Contest (NC1) Anthony Olascuaga, Oct. 14
Next: TBA
2. Masamichi Yabuki Previous ranking: N/R
Record: 17-4, 16 KOs
Last: W (TKO9) Sivenathi Nontshinga, Oct. 12
Next: TBA
3. Adrian Curiel Previous ranking: No. 4
Record: 24-6-1, 5 KOs
Last: L (TD9) Sunny Edwards, June 29
Next: TBA
4. Elwin Soto Previous ranking: No. 5
Record: 21-3, 13 KOs
Last: W (UD10) Jose Ramirez Armenta, Nov. 11
Next: TBA
5. Shokichi Iwata Previous ranking: N/R
Record: 14-1, 11 KOs
Last: W (TKO3) Jairo Noriega, Oct. 13
Next: TBA
Editor's note: Kenshiro Teraji has moved to flyweights.
STRAWWEIGHT (UP TO 105 POUNDS)
1. Oscar Collazo Previous ranking: No. 1
Record: 11-0, 8 KOs
Last: W (TKO7) Knockout CP Freshmart, Nov. 16
Next: TBA
2. Melvin Jerusalem Previous ranking: No. 2
Record: 22-3, 12 KOs
Last: W (SD12) Yudai Shigeoka, March 31
Next: TBA
3. Erick Rosa Previous ranking: No. 3
Record: 7-0, 2 KOs
Last: W (UD12) Yudel Reyes, April 5
Next: TBA
4. Pedro Taduran Previous ranking: No. 5
Record: 17-4-1, 13 KOs
Last: W (TKO9) Ginjiro Shigeoka, July 28
Next: TBA
5. Knockout CP Freshmart Previous ranking: No. 4
Record: 11-2, 9 KOs
Last: L (TKO7) Oscar Collazo, Nov. 16
Next: TBA