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Kickboxing Weight Classes Explained: K-1, GLORY, RISE and ONE

Kickboxing Weight Classes Explained: K-1, GLORY, RISE and ONE

LukasLukas
June 12, 202613 min read

Kickboxing weight classes are upper limits used to match athletes of broadly similar size. There is no single global kickboxing chart: K-1, GLORY, RISE, ONE Championship and amateur federations publish their own divisions and may use the same name for different limits.

That is the most important rule for reading any kickboxing record. A “middleweight” result is incomplete without the promotion, ruleset and contracted weight.

Quick comparison

OrganizationExamples from its current structureImportant context
K-153, 55, 57.5, 60, 62.5, 65, 67.5, 70, 75 and 90 kg, plus open heavyweightK-1 also lists women's 45, 48 and 52 kg divisions
GLORY65, 70, 77, 85 and 95 kg, plus heavyweight above 95 kgDivision names and active competitive structure can change
RISE51.5, 53, 55, 57.5, 60, 62.5, 65, 67.5, 70 and 90 kg, plus heavyweightRISE also maintains separate women's divisions and some world-title limits
ONE ChampionshipAtomweight through heavyweight under ONE's own pound-based categoriesONE combines weigh-ins with hydration testing and uses limits that do not map directly to similarly named divisions elsewhere

Sources: K-1's current fighter and champion directory, GLORY's published division overview, RISE's current professional rankings and ONE's martial-arts and weigh-in information.

The table is a comparison, not a universal rulebook. Always check the official event listing and rules in force for the bout.

What are the current K-1 weight classes?

K-1's current professional directory lists men's championship divisions at:

  • Bantamweight: 53 kg
  • Super bantamweight: 55 kg
  • Featherweight: 57.5 kg
  • Super featherweight: 60 kg
  • Lightweight: 62.5 kg
  • Super lightweight: 65 kg
  • Welterweight: 67.5 kg
  • Super welterweight: 70 kg
  • Middleweight: 75 kg
  • Cruiserweight: 90 kg
  • Heavyweight: open weight

K-1 also lists women's atomweight at 45 kg, minimumweight at 48 kg and flyweight at 52 kg. A specific event may stage a catchweight or tournament at another published limit, so the bout listing remains the final reference.

This corrects a common online error: modern K-1 is not an eight-division ladder beginning at 65 kg and increasing in five-kilogram steps to 100 kg.

How do GLORY divisions differ?

GLORY has published a compact structure built around featherweight at 65 kg, lightweight at 70 kg, welterweight at 77 kg, middleweight at 85 kg, light heavyweight at 95 kg and heavyweight above 95 kg.

The labels therefore do not translate directly. K-1's 75 kg middleweight and GLORY's 85 kg middleweight share a name while describing substantially different athletes. When comparing fighters across promotions, use the numerical limit instead of relying on the division label.

Browse KickboxHub's GLORY promotion page for documented events and results.

How do RISE divisions differ?

RISE's current professional rankings use closely spaced divisions through the lighter weights: 51.5, 53, 55, 57.5, 60, 62.5, 65, 67.5 and 70 kg, followed by 90 kg light heavyweight and heavyweight.

RISE also publishes separate women's divisions and some world-title categories. This is another reason to cite the exact competition and limit rather than treating a name such as “featherweight” as globally fixed.

Browse KickboxHub's RISE promotion page or read the guide to major kickboxing organizations.

How does ONE Championship handle weight?

ONE publishes categories from atomweight through heavyweight and requires athletes to pass both weight and hydration checks. Its categories are intentionally different from many dehydration-based systems. For example, a ONE athlete's named division should not be converted mechanically into the same division name used by K-1, GLORY or RISE.

ONE says a catchweight may be negotiated when both athletes remain within 105 percent of one another's official hydrated weight. Because policies can change, verify the current ONE martial-arts page before describing a specific bout.

Browse KickboxHub's ONE Championship promotion page for connected event data.

What is a catchweight bout?

A catchweight is a contracted limit outside a promotion's standard championship division. It may be used when fighters normally compete at different limits or when the parties agree to a specific weight for a non-title contest.

A catchweight does not create a permanent division, and it should not be relabeled as a standard weight class in a database. Store the contracted limit when it is known.

What happens when a fighter misses weight?

Consequences are organization- and bout-specific. They can include a further attempt on the scale, a negotiated catchweight, a purse penalty, a point deduction, loss of title eligibility, replacement or cancellation.

For example, K-1 has publicly documented title consequences and a first-round point deduction in a case where a champion missed the contracted limit. That does not mean every commission or promotion applies the same remedy.

Is weight cutting safe?

Rapid dehydration can impair performance and create serious health risk. There is no safe universal amount that a fighter “should” cut, and percentages copied from another sport are not medical instructions.

Athletes should follow the rules of their event and work with qualified medical and performance professionals. This guide explains competition categories; it does not prescribe a weight-cutting plan.

How KickboxHub uses weight classes

KickboxHub stores the weight class and, when available, the bout's contracted limit. Its weight-class rankings group documented professional results under KickboxHub's published data and ranking methodology; they are not a claim that every promotion uses the same division names.

For an individual fighter, consult the fighter database and the underlying event history. A profile's listed body weight is not automatically proof that every bout occurred at that exact limit.

Key takeaways

  • Kickboxing has no universal set of weight-class names and limits.
  • K-1's current professional structure contains more divisions than the old eight-class chart often repeated online.
  • GLORY, RISE and ONE use materially different structures.
  • Compare numerical limits and rulesets, not names alone.
  • Catchweights and missed-weight remedies belong to the specific bout contract and organizer.
  • Weight-cutting advice must come from qualified professionals, not a generic chart.

FAQ

Are kickboxing weight classes the same everywhere?

No. Each promotion or federation defines its own categories. The same name can represent a different maximum weight.

What are K-1's main men's divisions?

K-1 currently lists championship divisions at 53, 55, 57.5, 60, 62.5, 65, 67.5, 70, 75 and 90 kg, plus open heavyweight.

Why is GLORY middleweight different from K-1 middleweight?

Division names are brand-specific. GLORY has published middleweight at 85 kg, while K-1 currently lists middleweight at 75 kg.

Does ONE Championship allow dehydration-based weight cutting?

ONE uses hydration testing alongside its weigh-ins and says the system is intended to discourage weight cutting through dehydration. Consult ONE's current policy for the exact procedure.

Where can I compare fighters by division?

Use KickboxHub's rankings, then open the linked fighter profiles and event results to check the underlying data.

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Lukas

Written by

Lukas

Founder & CEO of KickboxHub

Scaling a programmatic data engine for the global kickboxing community. My mission is to provide the cleanest, fastest, and most accurate fight records on the internet. Built by a fan, for the fans, because at the end of the day, I just like martial arts.

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