Boxing weight classes form the foundation of competitive pugilism, ensuring fair matchups and protecting fighters from the dangers of size disparities.

From nimble flyweights to colossal heavyweights, each class presents unique challenges and strategic nuances.

Brace yourself for a ringside tour where size dictates the starting line, but the dance of fists ultimately crowns the king. Join us as we explore the heart and soul of boxing, one weight class at a time.

Atomweight (102 lbs Women's)

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In the bustling borough of boxing weight classes, the Atomweight division occupies a unique corner – a haven for diminutive dynamos and strategic maestros.

Clocking in under 102 pounds in the women's division, these pint-sized pugilists defy expectations with their whirlwind blend of speed, precision and unyielding grit.

Atomweight Champions: 

  • WBO: Yuko Kuroki
  • IBF: Mika Iwakawa
  • WBA: Yuko Kuroki
  • WBC: Fabiana Bytyqi

Strawweight 105 lbs

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Strawweight weight class is one of the lightest weight classes in professional boxing. The weight limit for Strawweight boxers is under 105 pounds for men and upto 105 pounds for women.

Because of the low weight limit, Strawweight boxers are able to move around the ring very quickly and throw a lot of punches. 

Men's Champions: 

  • WBO: Oscar Collazo
  • IBF: Ginjiro Shigeoka
  • WBA: Knockout CP Freshmart (Erick Rosa is the WBA "regular" strawweight champion)
  • WBC: Yudai Shigeoka

Women's Champions: 

  • WBO: Yokasta Valle
  • IBF: Yokasta Valle
  • WBA: Seniesa Estrada
  • WBC: Seniesa Estrada

Junior flyweight 108 lbs

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Junior flyweight, also known as light flyweight or superstrawweight, is capped at 108 pounds for Men's and Women's Divisions. It's a well-established weight class, with a rich history dating back to the early 20th century.

Men's Champions:

  • WBO: Jonathan Gonzalez
  • IBF: Adrian Curiel
  • WBA: Kenshiro Teraji
  • WBC: Kenshiro Teraji

Women's Champions

  • WBO: Evelyn Bermudez
  • IBF: Evelyn Bermudez
  • WBA: Jessica Nery Plata (Maria Guadalupe Bautista is the WBA junior flyweight "regular" champion)
  • WBC: Jessica Nery Plata

Flyweight 112 lbs

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The flyweight division in boxing, comprising fighters at 112 lbs, exemplifies a class defined by remarkable speed and precision. These pugilists exhibit an exceptional balance of agility and endurance, making for captivating displays of technical prowess in the ring. 

Men's Champions:

  • WBO: Jesse Rodriguez
  • IBF: Jesse Rodriguez
  • WBA: Artem Dalakian
  • WBC: Julio Cesar Martinez

Women's Champions: 

  • WBO: Marlen Esparza
  • IBF: Gabriela Fundora
  • WBA: Marlen Esparza
  • WBC: Marlen Esparza (Kenia Enriquez is the WBC flyweight interim champion)

Junior Bantamweight 115 lbs

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The junior Bantamweight division, featuring fighters at 115 lbs, epitomizes a delicate balance between speed and power. In this weight class, the fighters showcase precision and agility, combining technical finesse with knockout potential. 

Men's Champions:

  • WBO: Vacant
  • IBF: Fernando Martinez
  • WBA: Kazuto Ioka
  • WBC: Juan Francisco Estrada

Women's Champions:

  • WBO: Mizuki Hiruta
  • IBF: Irma Garcia
  • WBA: Clara Lescurat
  • WBC: Asley Gonzalez (Adelaida Ruiz is the WBC junior bantamweight interim champion)

Bantamweight 118 lbs

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The Bantamweight division, housing fighters at 118 lbs, epitomizes the fusion of speed and skill. This weight class showcases a delicate dance between precision and power as fighters navigate the ring with strategic finesse. 

Men's Champions: 

  • WBO: Jason Moloney
  • IBF: Emmanuel Rodriguez
  • WBA: Takuma Inoue
  • WBC: Alexandro Santiago

Women's Champions: 

  • WBO: Dina Thorslund
  • IBF: Miyo Yoshida
  • WBA: Nina Hughes
  • WBC: Dina Thorslund

Junior Featherweight 122 lbs

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The Junior Featherweight division, featuring fighters at 122 lbs, encapsulates a blend of finesse and power. This weight class has seen iconic matchups, including battles featuring Guillermo Rigondeaux, a two-time Olympic gold medalist known for his elusive style and counterpunching mastery.

Men's Champions:

  • WBO: Naoya Inoue
  • IBF: Naoya Inoue
  • WBA: Naoya Inoue
  • WBC: Naoya Inoue

Women's Champions:

  • WBO: Segolene Lefebvre
  • IBF: Ellie Scotney
  • WBA: Erika Cruz
  • WBC: Yamileth Mercado

Featherweight 126 lbs

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The Featherweight division, set at 126 lbs, boasts a rich history of legendary bouts and skilled practitioners. Notable boxers such as Oscar Valdez, with his relentless aggression and precision, have graced this weight class. 

Men's Champions

  • WBO: Rafael Espinoza
  • IBF: Luis Alberto Lopez
  • WBA: Vacant
  • WBC: Rey Vargas (Brandon Figueroa is the WBC interim featherweight champion)

Women's Champions 

  • WBO: Amanda Serrano
  • IBF: Amanda Serrano
  • WBA: Amanda Serrano
  • WBC: Vacant (Skye Nicolson is the WBC featherweight interim champion)

Junior Lightweight 130 lbs

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The junior lightweight division, with fighters weighing in at 130 lbs, is a realm where agility and power intertwine. Notable boxers like Gervonta Davis showcase explosive combinations and knockout prowess, defining the division's dynamic nature. 

Men's Champions: 

  • WBO: Emanuel Navarrete
  • IBF: Joe Cordina
  • WBA: Lamont Roach
  • WBC: O'Shaquie Foster

Women's Champions 

  • WBO: Alycia Baumgardner
  • IBF: Alycia Baumgardner
  • WBA: Alycia Baumgardner (Hyun Mi Choi is the WBA junior lightweight champion in recess)
  • WBC: Alycia Baumgardner

Lightweight 135 lbs

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The lightweight division, anchored at 135 lbs, is a domain where speed and resilience take center stage. Legends like Vasyl Lomachenko, celebrated for his footwork and ring intelligence, have left an indelible mark. 

Men's Champions:

  • WBO: Vacant
  • IBF: Vacant
  • WBA: Vacant (Gervonta Davis is the WBA "regular" lightweight champion)
  • WBC: Shakur Stevenson

Women's Champions: 

  • WBO: Katie Taylor
  • IBF: Katie Taylor
  • WBA: Katie Taylor (Maira Moneo is the WBA lightweight interim champion)
  • WBC: Katie Taylor

Junior Welterweight 140 lbs

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The junior welterweight division, defined by a 140 lbs limit, showcases a perfect blend of power and technique. 

Men's Champions: 

  • WBO: Teofimo Lopez Jr.
  • IBF: Subriel Matias
  • WBA: Vacant (Rolando Romero is the WBA junior welterweight champion in recess)
  • WBC: Devin Haney

Women's Champions: 

  • WBO: Katie Taylor
  • IBF: Katie Taylor
  • WBA: Katie Taylor (Kali Reis is the WBA junior welterweight champion in recess)
  • WBC: Katie Taylor

Welterweight 147 lbs

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The welterweight division, defined by a weight limit of 147 lbs, is a realm where speed, skill, and endurance converge.

Men's Champions: 

  • WBO: Terence Crawford
  • IBF: Jaron Ennis
  • WBA: Terence Crawford (Eimantas Stanionis is the WBA "regular" welterweight champion)
  • WBC: Terence Crawford (Mario Barrios is the WBC interim welterweight champion)

Women's Champions:

  • WBO: Sandy Ryan
  • IBF: Natasha Jonas
  • WBA: Jessica McCaskill
  • WBC: Jessica McCaskill

Junior Middleweight 154 lbs

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The junior middleweight division, with a weight limit set at 154 lbs, represents a thrilling combination of power and precision. Boxers like Oscar De La Hoya and Canelo Alvarez have showcased their skills at 154 lbs, demonstrating a unique blend of speed and punching power. 

Men's Champions:

  • WBO: Tim Tszyu
  • IBF: Vacant
  • WBA: Jermell Charlo
  • WBC: Jermell Charlo

Women's Champions:

  • WBO: Ema Kozin
  • IBF: Femke Hermans
  • WBA: Terri Harper
  • WBC: Ema Kozin

Middleweight 160 lbs

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The middleweight division, marked by a weight limit of 160 lbs, holds a storied history of iconic bouts and legendary fighters. Middleweights such as Gennady Golovkin, famed for his powerful punches and relentless pressure, have left an indelible mark on the division. 

Men's Champions: 

  • WBO: Janibek Alimkhanuly
  • IBF: Janibek Alimkhanuly
  • WBA: Erislandy Lara
  • WBC: Jermall Charlo (Carlos Adames is the WBC interim middleweight champion)

Women's Champions:

  • WBO: Claressa Shields
  • IBF: Claressa Shields
  • WBA: Claressa Shields
  • WBC: Claressa Shields

Super Middleweight 168 lbs

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The super-middleweight division, anchored at 168 lbs, embodies a balance between power and athleticism. 

Men's Champions:

  • WBO: Canelo Alvarez
  • IBF: Canelo Alvarez
  • WBA: Canelo Alvarez (David Morrell is the WBA "regular" super middleweight champion)
  • WBC: Canelo Alvarez (David Benavidez is the WBC interim super middleweight champion)

Women's Champions: 

  • WBO: Savannah Marshall
  • IBF: Savannah Marshall
  • WBA: Savannah Marshall (Franchon Crews Dezurn is the WBA super middleweight interim champion)
  • WBC: Franchon Crews Dezurn (Savannah Marshall is the WBC super middleweight champion in recess)

Light Heavyweight 175 lbs

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The Light Heavyweight division, characterized by a weight limit of 175 lbs, is a realm where raw power and strategic prowess intersect. Legendary figures like Sergey Kovalev, known for his devastating punches, have made their mark in this weight class.

Men's Champions: 

  • WBO: Artur Beterbiev
  • IBF: Artur Beterbiev
  • WBA: Dmitry Bivol
  • WBC: Artur Beterbiev

Women's Champions:

  • WBO: Vacant
  • IBF: Lani Daniels
  • WBA: Hanna Gabriels
  • WBC: N/A

Cruiserweight (200 lbs Men's)

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The Cruiserweight division, defined by a weight limit of 200 lbs in men's boxing, serves as a bridge between the lighter and heavyweight classes. This weight category has witnessed formidable fighters like Oleksandr Usyk, a former undisputed champion with exceptional movement and skill. 

Cruiserweight bouts often feature a combination of speed and heavyweight-like punching, creating an intriguing blend of styles.

Men's Champions:

  • WBO: Chris Billam-Smith
  • IBF: Vacant
  • WBA: Arsen Goulamirian
  • WBC: Norair Mikaeljan

Heavyweight (Weight Limit Varies)

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In the men's heavyweight division, fighters compete at 200 pounds and above. This weight class is renowned for producing some of the most iconic figures in boxing history like Muhammad Ali, Joe Frazier, and more recently, Anthony Joshua and Tyson Fury.

In the Women's Heavyweight division, there is no upper weight limit, with fighters weighing 175 pounds and above. 

Men's Champions:

  • WBO: Oleksandr Usyk (Zhilei Zhang is the WBO interim heavyweight champion)
  • IBF: Oleksandr Usyk
  • WBA: Oleksandr Usyk (Mahmoud Charr is the WBA "regular" heavyweight champion)
  • WBC: Tyson Fury

Women's Champions: 

  • WBO: N/A
  • IBF (over 200 lbs.): Lani Daniels
  • WBA: N/A
  • WBC: Vacant