Flyweight is a weight class in combat sports.


Flyweight is a class in boxing which includes fighters weighing above 49 kg (108 lb) and up to 51 kg (112 lb).[1]

Professional boxing

The flyweight division was the last of boxing's eight traditional weight classes to be established. Before 1909, anyone below featherweight was considered a bantamweight, regardless of how small the boxer. In 1911, the organization that eventually became the British Boxing Board of Control held a match that crowned Sid Smith as the first flyweight champion of the world. Jimmy Wilde, who reigned from 1914 to 1923, was the first fighter recognized both in Britain and the United States as a flyweight champion.[2]

Other notable flyweights include Pancho Villa, Walter McGowan, Pascual Pérez, Pone Kingpetch, Fighting Harada, Masao Ohba, Chartchai Chionoi, Efren Torres, Erbito Salavarria, Miguel Canto, Dave McAuley, Charlie Magri, Gabriel Bernal, Santos Laciar, Sot Chitalada, Yong-Kang Kim, Yuri Arbachakov, Danny Romero, Mark "Too Sharp" Johnson, Manny Pacquiao, Jorge Arce, Vic Darchinyan, Nonito Donaire, Pongsaklek Wonjongkam, Amnat Ruenroeng, Román González, McWilliams Arroyo, Donnie Nietes and Nicola Adams.

Pongsaklek Wonjongkam holds the record for most consecutive title defenses at this division, with 17 defenses of the WBC title.

Professional champions

Current champions

Sanctioning Body Reign Began Champion Record Defenses
WBA February 24, 2018 Artem Dalakian 19–0–0 (14 KO) 3
WBC December 20, 2019 Julio Cesar Martinez 15–1–0 (12 KO) 0
IBF July 15, 2018 Moruti Mthalane 39–2–0 (26 KO) 3
WBO September 24, 2018 Kosei Tanaka 15–0–0 (9 KO) 3
Longest reigning flyweight champions

Below is a list of longest reigning flyweight champions in boxing measured by the individual's longest reign. Career total time as champion ( for multiple time champions) does not apply.

NameTitle reignTitle recognitionSuccessful defenses
1. Omar Andres Narvaez7 years, 10 monthsWBO16
2. Jimmy Wilde7 years, 4 months, 4 daysWorld5
3. Pongsaklek Wonjongkam6 years, 4 months, 16 daysWBC17
4. Irene Pacheco5 years, 8 months, 6 daysIBF6
5. Pascual Perez5 years, 4 months, 20 daysWorld16
6. Yuri Arbachakov5 years, 4 months, 19 daysWBC9
7. Miguel Canto4 years, 2 months, 10 daysWBC14
8. Moruti Mthalane4 years, 1 month, 23 daysIBF4
9. Jackie Paterson4 years, 1 month, 12 daysNBAN/A
10. Sot Chitalada3 years, 9 months, 16 daysWBC6

Amateur Champions


In kickboxing, a flyweight fighter generally weighs 53 kg (116 lb) or under. The International Kickboxing Federation (IKF) Flyweight division (professional and amateur) is 112.1 lbs. – 117 lbs. or 50.95 kg – 53.18 kg.

Mixed Martial Arts

The flyweight division in mixed martial arts – as defined by the Nevada State Athletic Commission combat sports doctrine[3] and by the Association of Boxing Commissions[4] – groups together all competitors 125 lb (57 kg) and below. It sits between Strawweight (106 lbs-115 lbs) and Bantamweight (126 lbs-135lbs).

The flyweight division in mixed martial arts refers to a number of different weight classes:

  • The UFC's flyweight division, which groups competitors within 116 to 125 lb (53 to 57 kg)
  • The Pancrase light flyweight division with an upper limit of 120 lb
  • The Shooto flyweight division with an upper limit of 115 lb[5]
  • The ONE Championship's flyweight division, with upper limit at 61 kg (134.5 lb)
  • The Road FC's flyweight division, with upper limit at 125 lb (57 kg)


On February 3, 2009, World Extreme Cagefighting (WEC) announced they would be adding a flyweight division set at 125 lb,[6] however the division was never instituted. When the UFC and WEC merged, UFC president Dana White indicated that the Ultimate Fighting Championship would likely add a flyweight division in the future.[7] The UFC flyweight division was officially announced in 2011;[8] with the inaugural champion being decided by way of a four-man tournament that began with the semifinal round held at the UFC on FX 2 event in Sydney Australia on March 2, 2012. Joseph Benavidez won his semi-final at UFC on FX 2 while Demetrious Johnson and Ian McCall fought to a draw. Johnson and McCall rematched at UFC on FX: Johnson vs. McCall on June 8, 2012 with Johnson advancing. Johnson won the first UFC flyweight championship with his win over Benavidez at UFC 152.[9]

Professional Champions

These tables are not always up to date. Last updated on February 28, 2020.


Organization Reign Began Champion Record Defenses
UFC December 19, 2019 Vacant N/A N/A
ONE Championship June 23, 2018 Geje Eustaquio 11-6 (2KO 2SUB) 0
Fight Nights Global August 31, 2018 Zhalgas Zhumagulov 12-3-0 (7TKO 2SUB) 0
Legacy Fighting Alliance April 20, 2018 Maikel Pérez 6-1 (1KO 3SUB) 0


Organization Reign Began Champion Record Defenses
UFC December 8, 2018 Valentina Shevchenko 19-3 (6KO 7SUB) 3
Bellator MMA November 3, 2017 Ilima-Lei Macfarlane 8-0 (1KO 5SUB) 1
Invicta FC Vacant
KSW May 27, 2017 Ariane Lipski 11-3 (6KO 2SUB) 2
Legacy Fighting Alliance May 27, 2017 Sabina Mazo 5-0 (2KO) 0

See also


  1. Technical & Competition Rules, Appendix K AIBA
  2. Mullan, Harry (1996). Boxing: The Definitive Illustrated Guide to World Boxing. London, England: Carlton Books. p. 186. ISBN 0-7858-0641-5.
  3. "Nevada Revised Statutes: Chapter 467 - Unarmed Combat". Retrieved 2007-02-20.
  4. "Unified Rules of MMA". Archived from the original on 2012-07-05. Retrieved 2012-07-15.
  5. Nelson, Chris (2010-07-19). "'The Way of Shooto 4' Quick Results". Retrieved 2012-03-19.
  6. "WEC's long-awaited 125-pound weight class likely to come in early 2010". 2009-08-07.
  7. "Dana White announces merger between UFC and WEC". Las Vegas Sun. 2010-10-28.
  8. "UFC adds flyweights: Johnson vs. McCall, Benavidez vs. Urushitani at UFC on FX 2". 2011-12-11. Archived from the original on 2012-01-07.
  9. MMAjunkie UFC Champ Demetrious Johnson critical of striking. retrieved 25 September 2012