Flyweight

Flyweight is a weight class in combat sports.

Flyweight is a class in boxing which includes fighters weighing up to and including 51 kg (112 lb) for a title fight.^[1]

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 1916 to 1923, was the first fighter recognized both in Britain and the United States as a flyweight champion.^[2]

Other notable flyweights include Victor Perez, Pancho Villa, Walter McGowan, Pascual Pérez, Pone Kingpetch, Salvatore Burruni, 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, Omar Andrés Narváez, Pongsaklek Wonjongkam, Amnat Ruenroeng, Román González, Donnie Nietes, Nicola Adams.

Sanctioning Body	Reign Began	Champion	Record	Defenses
WBA	July 30, 2025	Ricardo Sandoval	27–2 (18 KO)	0
WBC	July 30, 2025	Ricardo Sandoval	27–2 (18 KO)	0
IBF	March 29, 2025	Masamichi Yabuki	18–4 (17 KO)	0
WBO	July 20, 2024	Anthony Olascuaga	9–1 (6 KO)	2

As of August 8, 2025^[3]

Keys:

 C The Ring world champion

Rank	Name	Record	Title(s)
C	vacant
1	Ricardo Sandoval	27–2 (18 KO)	WBC, WBA
2	Kenshiro Teraji	25–2 (16 KO)
3	Seigo Yuri Akui	21–3–1 (11 KO)
4	Masamichi Yabuki	18–4 (17 KO)	IBF
5	Galal Yafai	9–0–0–1 (7 KO)
6	Ángel Ayala	18–1 (8 KO)
7	Felix Alvarado	42–4 (35 KO)
8	Anthony Olascuaga	9–1 (6 KO)	WBO
9	Tobias Reyes	17–1–1 (16 KO)
10	Jukiya Iimura	9–1 (2 KO)

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.

	Name	Title reign	Title recognition	Successful defenses	Beaten opponents	Fights
1.	Omar Andres Narvaez	7 years, 10 months	WBO	16	15	[4]
2.	Jimmy Wilde	7 years, 4 months, 4 days	World	3	3	[5]
3.	Pongsaklek Wonjongkam	6 years, 4 months, 16 days	WBC	17	16	[6]
4.	Artem Dalakian	5 years, 10 months, 27 days	WBA	5	5	[7]
3.	Irene Pacheco	5 years, 8 months, 6 days	IBF	6	6	[8]
6.	Pascual Perez	5 years, 4 months, 20 days	World	9	9	[9][10]
7.	Yuri Arbachakov	5 years, 4 months, 19 days	WBC	9	9	[11]
8.	Jackie Paterson	4 years, 9 months, 4 days	NBA	1	1	[12]
9.	Miguel Canto	4 years, 2 months, 10 days	WBC	14	11	[13]
10.	Moruti Mthalane	4 years, 1 month, 23 days	IBF	4	4	[14]
11.	Sot Chitalada	3 years, 9 months, 16 days	WBC	6	5	[15]

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 lb. – 117 lb. or 50.95 kg – 53.18 kg.

In ONE Championship, the flyweight division is up to 61.2 kg (135 lb).

The limit for flyweight generally differs among promotions in bare knuckle boxing:

• In Bare Knuckle Fighting Championship, the flyweight division has an upper limit of 125 lb (57 kg).
• In BKB™, the flyweight division has an upper limit of 70 kg (154 lb).

The flyweight division in mixed martial arts – as defined by the Nevada State Athletic Commission combat sports doctrine^[16] and by the Association of Boxing Commissions^[17] – groups together all competitors 125 lb (57 kg) and below. It sits between Strawweight (106 lb-115 lb) and Bantamweight (126 lb-135lb).

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 54 kg (119 lb)
• The Shooto flyweight division with an upper limit of 114.6 lb (52 kg) ^[18]
• The ONE Championship's flyweight division, with upper limit at 61.2 kg (134.9 lb)
• The Road FC's flyweight division, with upper limit at 125 lb (57 kg)

These tables were last updated in December of 2025.

  Active title reign

  Active title reign (interim)

Men:

Organization	Reign Began	Champion	Record	Defenses
UFC	December 6, 2025	Joshua Van	16-2-0 (8KO 2SUB)	0
ONE Championship	March 23, 2025	Yuya Wakamatsu	20-6-0 (14KO 0SUB)	1
Rizin FF	December 31, 2025	Hiromasa Ougikubo	30-8-2 (1KO 6SUB)	0
ACA	June 28, 2025	Azamat Pshukov	14-3-0 (8KO 3SUB)	0
Brave CF	November 7, 2025	Muhammad Mokaev	16-0-0 (3KO 7SUB)	0
CFFC	September 27, 2024	Bilal Hasan	7-0-0 (5KO 1SUB)	2
Cage Warriors	December 6, 2025	Nicolas Leblond	13-4-0 (3KO 6SUB)	0
Pancrase	April 3, 2024	Seiichiro Ito	18-4-0 (3KO 12SUB)	0
Jungle Fight	March 22, 2023	Wagner Reis	9-4-0 (7KO 1SUB)	0
LFA	March 22, 2025	Eduardo Henrique	15-2-0 (7KO 4SUB)	2
LFA	February 7, 2025	Marcos Degli	13-3-0 (8KO 4SUB)	1
LUX Fight League	February 13, 2026	Paulino Siller	17-3-0 (2KO 7SUB)	0
Oktagon MMA	June 28, 2025	Zhalgas Zhumagulov	18-9-0 (8KO 1SUB)	0
DEEP	August 17, 2025	Yutaro Muramoto	14-9-2 (5KO 2SUB)	0

Women:

Organization	Reign Began	Champion	Record	Defenses
UFC	September 14, 2024	Valentina Shevchenko	26–4–0 (1) (8KO 7SUB)	2
Invicta FC	N/A	Vacant	N/A	N/A
Deep Jewels	May 8, 2022	Rin Nakai	28-2 (10KO 12SUB)	0
Pancrase	March 9, 2025	Fumika Watanabe	3-1 (1KO 0SUB)	0
Jungle Fight	March 26, 2023	Elora Dana	8-1 (1KO 5SUB)	2
LFA	February 23, 2024	Shannon Clark	7-1 (3KO 1SUB)	2

• List of current MMA Flyweight Champions
• List of Road FC Flyweight Champions
• List of current MMA Women's Flyweight Champions