Boxing is the original combat sport, and across more than a century of professional competition, it has built one of the most detailed weight class systems in any athletic discipline. Where the UFC operates across 12 weight divisions, professional boxing has 17, each with its own world champions, its own historical legends, and its own betting markets at BetVictor. For ongoing fight previews and division news, BetVictor’s boxing news hub is the place to start.
This guide walks through all 17 boxing weight divisions, from the 105-pound minimumweights up to the no-upper-limit heavyweights. The aim is to give UK fans a clear reference to what each weight class is, who holds the major belts in 2026, and what makes each division distinct. The 17-division system can look confusing at first because the same weight limit goes by different names across the four major sanctioning bodies, so the naming conventions are explained too.
The Four Major Sanctioning Bodies
Professional boxing has four major world sanctioning bodies, each of which crowns its own champion in every weight class. A fighter who holds belts from all four at the same time is the undisputed champion of the division, the closest boxing comes to a single recognised champion. The four bodies are:
- WBA: The World Boxing Association, founded in 1921 and the oldest of the four. Often crowns both a ‘Super’ champion and a ‘Regular’ champion in the same division.
- WBC: The World Boxing Council, founded in 1963 in Mexico City. Famous for its green-and-gold belt and a strong cultural presence across the lighter weight classes.
- IBF: The International Boxing Federation, founded in 1983 in the United States. Tends to enforce mandatory challenges more strictly than the other three.
- WBO: The World Boxing Organization, founded in 1988 in Puerto Rico. Uses the ‘Junior’ prefix where the other bodies use ‘Super’ (Junior Flyweight, Junior Bantamweight, Junior Welterweight, Junior Middleweight, Junior Lightweight, Junior Featherweight).
All four bodies use the same physical weight limits in each division. The naming variations exist for historical and political reasons rather than any technical difference. For consistency, this guide uses the ‘Super’ naming convention which is most common in UK media coverage.
The Light Divisions (105 to 135 Pounds)
The lower weight classes are dominated by Asian and Latin American fighters and tend to deliver some of the highest-paced, most technical boxing in the sport. The fighters at the very bottom of the weight ladder are smaller in stature than most amateur boxers, with reach and power deficits offset by speed and volume.
1. Minimumweight (Up to 105 lbs / 47.6 kg)
Also known as Strawweight or Mini Flyweight, this is the lowest weight class in professional boxing. The division is dominated by Mexican, Japanese and Thai fighters and rarely features on major UK or US pay-per-view cards.
2. Light Flyweight (Up to 108 lbs / 49.0 kg)
The WBO calls this division Junior Flyweight, the most commonly misunderstood naming difference across the four sanctioning bodies. The 108-pound division has historically been one of boxing’s most competitive lower weight classes, with Mexican and Filipino fighters particularly dominant.
3. Flyweight (Up to 112 lbs / 50.8 kg)
One of boxing’s original eight divisions and the lowest of the so-called ‘glamour’ weight classes. Flyweight is one of four divisions in which Manny Pacquiao won a world title during his record-breaking eight-division career.
4. Super Flyweight (Up to 115 lbs / 52.2 kg)
Also known as Junior Bantamweight by the WBO. Jesse ‘Bam’ Rodriguez is the current unified champion at 23-0 with 16 knockouts and ranked third in the pound-for-pound listings at just 25 years old, making him the youngest fighter on the elite list. Roman ‘Chocolatito’ Gonzalez and Juan Francisco Estrada’s trilogy at 115 also produced some of the most acclaimed action fights of the 2010s and 2020s. A potential 2027 superfight between Rodriguez and Naoya Inoue is one of the most anticipated matchups in the lower weight classes.
5. Bantamweight (Up to 118 lbs / 53.5 kg)
Another of boxing’s original eight divisions and the lowest weight class with consistent UK fan interest. Japanese star Junto Nakatani held the unified bantamweight titles before stepping up to face Naoya Inoue at junior featherweight on 2 May 2026, in what was billed as the biggest fight in the history of Japanese boxing. Nakatani lost a competitive unanimous decision to Inoue and has since been sidelined with a left orbital bone fracture. He remains the unified bantamweight champion at 32-1 and is expected to return to action later in 2026.
6. Super Bantamweight (Up to 122 lbs / 55.3 kg)
Also known as Junior Featherweight by the WBO. Naoya Inoue is the world’s number one pound-for-pound boxer, currently the undisputed champion at 122 pounds with a perfect 33-0 record and 27 knockouts. Inoue’s May 2026 victory over fellow pound-for-pound fighter Junto Nakatani elevated him above Oleksandr Usyk to the top of the rankings and confirmed his status as the most destructive finisher in the sport.
7. Featherweight (Up to 126 lbs / 57.2 kg)
One of the original eight divisions and home to some of boxing’s most beloved fighters across history, including the UK’s own ‘Prince’ Naseem Hamed. Featherweight remains one of the more competitive lower weight classes in the modern era.
8. Super Featherweight (Up to 130 lbs / 59.0 kg)
Also known as Junior Lightweight by the WBO. The division has produced legends like Floyd Mayweather Jr., who won his first world title at 130 pounds, and Manny Pacquiao who used 130 as a stepping stone in his weight-climbing run.
9. Lightweight (Up to 135 lbs / 61.2 kg)
One of the original eight divisions and one of the most stacked weight classes in 21st-century boxing. Shakur Stevenson dominated this division before moving up to junior welterweight in early 2026 to claim a title in his fourth weight class. The lightweight division remains highly competitive with Vasiliy Lomachenko, Devin Haney (since moved to welterweight), Gervonta ‘Tank’ Davis and Ryan Garcia all having held belts in recent years.
The Middle Divisions (140 to 168 Pounds)
The middle weight classes are where boxing’s biggest commercial draws have historically sat. The reach of these fighters combined with their hand speed and power makes for the most televisually compelling action in the sport, and most of the major US and UK pay-per-views are staged in this range.
10. Super Lightweight (Up to 140 lbs / 63.5 kg)
Also known as Junior Welterweight by the WBO. Shakur Stevenson is the current champion at 25-0 after pitching a near-shutout over Teofimo Lopez Jr. on 31 January 2026 to win a major world title in his fourth weight class. The 28-year-old Stevenson is now ranked fifth pound-for-pound and has the option to unify at 140 pounds, drop back to lightweight, or climb up another weight class to 147. Ricky Hatton remains the most popular UK fighter in the division’s modern history.
11. Welterweight (Up to 147 lbs / 66.7 kg)
The most prestigious of the middle weight classes and one of boxing’s original eight divisions. Welterweight is home to many of the sport’s greatest names across history including Sugar Ray Leonard, Floyd Mayweather Jr., Manny Pacquiao and the recently retired Terence Crawford. Devin Haney is the current WBO welterweight champion at 33-0 with one no contest, having defeated Brian Norman Jr. in November 2025, while Britain’s Lewis Crocker (22-0) is one of the brightest contenders at the weight.
12. Super Welterweight (Up to 154 lbs / 69.9 kg)
Also known as Junior Middleweight by the WBO. Sebastian Fundora currently holds multiple belts at 154 pounds, with Jaron ‘Boots’ Ennis as the interim junior middleweight champion at 35-0 with 31 knockouts. Ennis is one of the most highly rated technical talents in the sport, with his planned 27 June 2026 fight against Xander Zayas marking his first defence at the new weight. The division has historically been a transitional weight class for fighters moving up from welterweight or down from middleweight.
13. Middleweight (Up to 160 lbs / 72.6 kg)
One of the original eight divisions and the heaviest of the so-called classic glamour weight classes. Middleweight is home to one of the greatest eras in boxing history, with the ‘Four Kings’ (Sugar Ray Leonard, Marvin Hagler, Thomas Hearns and Roberto Duran) producing nine fights against each other across the 1980s. The UK’s Chris Eubank Jr. and Carl Froch (before he moved to super middleweight) both fought in this division.
14. Super Middleweight (Up to 168 lbs / 76.2 kg)
Super middleweight was dominated for most of the 2020s by Saul ‘Canelo’ Alvarez, who became the undisputed champion in 2021. Canelo lost his undisputed status to Terence Crawford on 13 September 2025 in front of more than 70,000 fans at Allegiant Stadium in Las Vegas, with Crawford then retiring soon afterwards. Canelo is set to return to the ring on 12 September 2026 in Riyadh, Saudi Arabia against WBC super middleweight champion Christian Mbilli following elbow surgery, looking to reclaim one of the titles he lost to Crawford. The UK’s Carl Froch built his Hall of Fame career at super middleweight, and Joe Calzaghe’s 21 successful WBO title defences at the weight remain one of boxing’s most extraordinary championship runs.
The Heavy Divisions (175 Pounds and Above)
The heaviest weight classes are where boxing’s biggest single fights tend to live. Heavyweight has been the sport’s culturally dominant division throughout its history, and light heavyweight and cruiserweight have produced their share of crossover legends too.
15. Light Heavyweight (Up to 175 lbs / 79.4 kg)
One of the original eight divisions and consistently one of boxing’s deepest weight classes. David Benavidez is currently the WBC light heavyweight champion at 32-0 with 26 knockouts and ranked fourth pound-for-pound. Dmitry Bivol holds the unified WBA, IBF and WBO belts after his February 2025 majority decision rematch win over Artur Beterbiev and his June 2026 return from a 15-month injury layoff. A unification clash between Benavidez and Bivol is one of the most anticipated potential fights of the second half of 2026. UK fans have also followed Joshua Buatsi closely as a leading contender at the weight.
16. Cruiserweight (Up to 200 lbs / 90.7 kg)
The newest of the major weight classes, established by the WBC in 1979 to give 190-pound fighters somewhere to compete instead of being thrown in with 240-pound heavyweights. The 2020s have seen cruiserweight transformed by Oleksandr Usyk’s reign and successful move up to heavyweight, followed by David Benavidez’s emphatic May 2026 KO win over Gilberto Ramirez to become unified cruiserweight champion and a three-division world champion. Australia’s Jai Opetaia, ranked tenth pound-for-pound, claimed the inaugural Zuffa Boxing cruiserweight championship on 8 March 2026 with a dominant decision win over Brandon Glanton. Evander Holyfield in the 1980s remains the division’s most famous historical alumnus.
17. Heavyweight (Over 200 lbs / 90.7 kg)
Boxing’s most prestigious division, with no upper weight limit. Heavyweight has been home to the sport’s biggest cultural figures including Muhammad Ali, Joe Louis, Mike Tyson and Lennox Lewis. Oleksandr Usyk is the current unified heavyweight champion at 25-0 with 16 knockouts, holding the WBA, WBC and IBF belts. The 39-year-old Ukrainian extended his unbeaten run on 23 May 2026 with an eleventh-round stoppage of former kickboxing champion Rico Verhoeven in Giza, Egypt, having previously beaten Tyson Fury twice in 2024 and stopped Daniel Dubois at Wembley in July 2025. Dubois has since regained the WBO title that Usyk relinquished. Britain’s Anthony Joshua and Tyson Fury remain the division’s biggest pay-per-view draws, with their long-awaited Battle of Britain megafight scheduled for late 2026.
What About Bridgerweight? The Disputed 18th Division
Some sources reference 18 weight classes in boxing rather than 17. The 18th division is Bridgerweight, established by the WBC in November 2020 for fighters between 200 and 224 pounds. The WBA recognised it in December 2023, but the IBF and WBO have so far declined to adopt it.
The division was named after a six-year-old American boy called Bridger Walker who saved his sister from a dog attack in 2020. The intention was to give former cruiserweights and smaller heavyweights a genuine landing spot rather than being thrown into the open-weight heavyweight pool. So far the division has struggled to attract elite talent, with both Oleksandr Usyk and Deontay Wilder declining to compete at Bridgerweight in favour of remaining at heavyweight. For most practical purposes, including BetVictor’s boxing markets, the 17-division model remains the working standard in 2026.
The Current Pound-for-Pound Picture
With 17 weight divisions, the pound-for-pound rankings are how boxing tries to compare fighters across the weight spectrum. Following Naoya Inoue’s May 2026 win over Junto Nakatani and Oleksandr Usyk’s stoppage of Rico Verhoeven later the same month, the consensus top five pound-for-pound fighters in the sport as of mid-2026 are:
- 1. Naoya Inoue (Japan): 33-0, 27 KOs, undisputed super bantamweight champion. ‘The Monster’ took over the top spot after defeating fellow pound-for-pound fighter Junto Nakatani by unanimous decision on 2 May 2026 in the biggest fight in the history of Japanese boxing.
- 2. Oleksandr Usyk (Ukraine): 25-0, 16 KOs, heavyweight unified champion. Holds the WBA, WBC and IBF titles, with recent wins over Tyson Fury (twice), Daniel Dubois and Rico Verhoeven. The 39-year-old has indicated he plans two more fights before considering retirement.
- 3. Jesse ‘Bam’ Rodriguez (USA): 23-0, 16 KOs, unified junior bantamweight champion. The youngest fighter on the pound-for-pound list at age 25 and one of the most exciting talents in the sport.
- 4. David Benavidez (USA): 32-0, 26 KOs, WBC light heavyweight champion and unified cruiserweight champion. A three-division world champion who became the first to add the cruiserweight title to his collection in May 2026 with a sixth-round knockout of Gilberto Ramirez.
- 5. Shakur Stevenson (USA): 25-0, 11 KOs, junior welterweight champion. Won a major world title in his fourth weight class by defeating Teofimo Lopez Jr. by unanimous decision on 31 January 2026.
Final Word on the 17-Division System
Boxing’s 17-division weight class system is one of the most detailed in any combat sport, and understanding it is essential for any serious fan. The lower weight classes deliver speed and volume, the middle weights produce the most technically rounded action, and the heavy divisions host the sport’s biggest cultural moments. With four sanctioning bodies crowning their own champion in every division, there are often well over 70 ‘world champions’ in professional boxing at any given time, which is why the rare undisputed champions (currently Naoya Inoue at super bantamweight and a handful of others) carry such weight.
BetVictor offers boxing odds across all 17 weight divisions, from world title fights down to domestic and regional Championship cards. Whether you are following Tyson Fury’s heavyweight comeback, Lewis Crocker’s welterweight title defence, Naoya Inoue’s super bantamweight dominance or any of the other elite fighters across the sport, you can place your bets at BetVictor. New customers can also check out the latest BetVictor sports offers before placing their first wager.
18+. Always gamble responsibly. Please visit BeGambleAware.org for help and support.
