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Sumo Weight Categories

Sumo Weight Categories

Complete IFS weight grid for amateur sport sumo — senior men's, senior women's, junior, cadet and youth divisions.

Governing body: International Sumo Federation (IFS)

Amateur sport sumo, governed by the International Sumo Federation (IFS), divides athletes into weight categories at every level of competition — the opposite of professional Japanese ōzumō, which has no weight classes and rewards heavier wrestlers as a structural advantage. The IFS grid keeps the sport accessible to athletes of every body type, from lightweights under 65 kg to super-heavyweights over 115 kg, and runs separate brackets for women, juniors, cadets and youth.

Every Sumo Cup-managed tournament uses the IFS weight grid as its default category set. The categories below match the senior grid contested at the Sumo World Championships and at all six continental championships (Europe, Asia, the Americas, Africa, Oceania). Junior, cadet and youth grids scale the same brackets down to match age-group bodyweights.

Senior men

IFS World Championships and continental championships grid for men aged 18+.

Lightweight-85 kg
Middleweight-100 kg
Light heavyweight-115 kg
Heavyweight+115 kg
Openweightno upper limit

Senior women

IFS World Championships and continental championships grid for women aged 18+.

Lightweight-65 kg
Middleweight-73 kg
Light heavyweight-80 kg
Heavyweight+80 kg
Openweightno upper limit

Juniors (U21 / U23)

Junior brackets staged alongside the senior championship at most editions.

Men-77, -85, -100, -115, +115, open
Women-65, -73, -80, +80, open

Cadets (U18)

Cadet weight grid used at the European Cadet Championships and equivalents.

Boys-60, -70, -80, -100, +100, open
Girls-50, -60, -70, -80, +80, open

Youth (U13 / U15)

Lighter brackets for athletes 12 and under (U13) and 14 and under (U15). Exact ceilings vary by host federation.

Boys U15-45, -50, -55, -60, -65, -70, +70, open
Girls U15-40, -45, -50, -55, -60, -65, +65, open
Children (U13 and below)Lighter brackets in 5 kg increments scaled by host federation

How weigh-in and category assignment work

Athletes declare their target weight category at registration and must make weight at the official weigh-in, held the day before competition begins. An athlete who fails to make weight is either reassigned to a heavier category (if the rules and host federation allow) or scratched from that category's draw. The openweight category — contested in both men's and women's senior divisions — has no upper bodyweight limit and is traditionally the final event of the championship.

Junior, cadet and youth grids are scaled down from the senior grid by host federation and IFS continental body. The IFS regulation defines the senior grid; younger age groups follow the host federation's programme, which is published with the official event invitation. Sumo Cup tournaments mirror the host federation's chosen grid for each event.

Why amateur sumo has weight categories

Weight categories are one of three structural choices the IFS adopted specifically to differentiate amateur sport sumo from professional ōzumō. The other two are women's participation (banned in ōzumō, fully integrated at every level in IFS sumo) and tournament format (single-elimination brackets, not the round-robin honbasho). Together these changes were made so the sport could meet International Olympic Committee criteria for universality — and indeed, the IFS holds full IOC recognition since 9 October 2018.

The current senior weight grid has been stable for more than a decade. Earlier IFS editions experimented with additional lightweight categories at the World Championships level, and discussions of further expansion (additional lightweight brackets for both genders) continue at IFS Congress. For now, the 5-category senior grid above is the canonical World Championships and continental championships set.

Frequently asked questions

How many weight categories are there in sumo?

Amateur IFS sumo has 5 senior men's categories (-85 kg, -100 kg, -115 kg, +115 kg, openweight) and 5 senior women's categories (-65 kg, -73 kg, -80 kg, +80 kg, openweight). Junior, cadet and youth grids add lighter brackets scaled to age. Professional Japanese ōzumō has no weight categories — all wrestlers compete in the same single division.

What is the openweight category in sumo?

Openweight is a no-upper-limit category contested in both senior men's and senior women's divisions. Any athlete from the federation can enter, regardless of their fixed-weight category. It crowns the European or World openweight champion outright and is traditionally drawn last on the final day of competition.

What is the lightest weight category in sumo?

At senior level, the lightest IFS category is -65 kg for women and -85 kg for men. Junior, cadet and youth grids include much lighter brackets — boys U15 start as low as -45 kg and children's events use 5 kg increments scaled by host federation. The myth that sumo requires a heavy bodyweight applies only to professional ōzumō (no weight classes); amateur sport sumo is genuinely accessible to athletes of every body type.

What is the heaviest weight category in sumo?

The heaviest fixed senior category is +115 kg for men and +80 kg for women. Openweight (no upper limit) is separate and runs alongside the fixed grid.

How does the sumo weigh-in work?

Athletes declare their target category at registration and must make weight at the official weigh-in, held the day before competition. Federations submit weigh-in entries to the host. An athlete over their declared weight is reassigned to a heavier category if the rules allow, or scratched from that category. Many athletes also enter the openweight bracket as a fallback.

Why does amateur sumo have weight categories when professional sumo doesn't?

Weight categories were introduced by the IFS specifically to meet International Olympic Committee criteria for universality and inclusiveness. Without weight classes, the sport would not be eligible for Olympic-style competition. Pro Japanese sumo (ōzumō) is governed by the Japan Sumo Association and operates as a private discipline with no Olympic ambitions, so it has never adopted them.

Which weight categories does Sumo Cup use?

Sumo Cup tournaments default to the IFS-canonical grid above for senior events, and mirror each host federation's chosen grid for junior, cadet and youth events. When a federation has a season-specific preset, Sumo Cup applies it automatically across registration, weigh-in and bracket generation.

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