Body weight · 体重

Your weight class is a tactical decision.

Walking into a kumite weigh-in 50 grams over the bracket disqualifies you instantly. Cutting 4kg in 48 hours arrives you fatigued, dehydrated, and slow. The athletes who win consistently in kumite live within 1.5kg of their fight weight year-round and treat weight-class selection as a multi-year strategic choice — not a last-minute scramble.

20 WEIGHT BRACKETS · 8-STEP WEIGH-IN PROTOCOL · 7 PRACTICES TO AVOID · 4 ATHLETE TIERS
Weight categories

Find your bracket.

SENIOR · MALE · 5 BRACKETS
CategoryRangeAge GroupNotes
-60 kgunder 60 kgSenior 18+Lightest senior bracket. Speed and reach disproportionately matter.
-67 kg60–67 kgSenior 18+Most-contested international bracket. Deepest field.
-75 kg67–75 kgSenior 18+Balanced power and mobility. Common transition bracket from junior.
-84 kg75–84 kgSenior 18+Power weight class. Reach often above 1.85m at elite level.
+84 kgover 84 kgSenior 18+Heavyweight. Strong kohaku competitors. Reach-and-distance fight dominant.
Bracket finder

Which class are you in?

Enter your current weight. The finder shows the bracket you fall into for the selected tier (Senior · Male), and how much headroom you have to the boundary.

SENIOR · MALE
Type a weight above to see your bracket.
Weight log

Track your fight weight.

Log your weigh-ins and set a target. The goal is to live within 1.5kg of your bracket year-round. Entries are saved on this device only.

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Latest weigh-in (kg)
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Target weight (kg)
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kg from target
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Range logged (kg)
No weigh-ins logged yet
Add your first weigh-in above. Defaults to today's date if you leave the date blank.
Weigh-in protocol

The 48 hours before.

T-48h
Final weight check at the dojo. If more than 1.5kg above target, sensei must approve a cut plan or withdraw the entry.
T-24h
Travel day. Hydration normalised. No salt loading. No diuretics — these are tested-for substances.
T-12h
Last full meal. Plain carbohydrate-based. No new foods on competition days.
T-6h
Light breakfast, water sips only after 4h pre-weigh-in.
T-2h
Arrive at venue. Locate weigh-in station. Greet officials.
T-30min
Strip to undergarments (gender-segregated weigh-in). Use the venue scale, not your own.
T-0
Weigh-in. Number recorded by 2 officials. If over by even 50g — disqualified or moved up a class.
T+15min
Rehydrate immediately. Electrolyte drink, banana, dates. Begin recovery for first bout.
Practices to avoid

What harms more than it helps.

banned
Diuretic use
Banned. Always tested for. Career-ending sanction risk for a fight you might lose anyway.
severe
Extreme dehydration
A 5%+ dehydration cut reduces reaction time by 12% and grip strength by 7%. You arrive at the fight weaker than you would have been one class up.
severe
Long-distance running on weigh-in day
Loses muscle, not fat. Wrong tactic. Walk only.
high
Saunas and sweat suits
Functional but dangerous. Cardiac strain on athletes who lack supervision. Never alone.
high
Multi-day water cuts
Multi-day water restriction harms cognitive function. The fight needs your brain, not just your body.
banned
Last-minute laxative use
Both ineffective and dangerous. Causes cramping and electrolyte imbalance during competition.
chronic
Repeated extreme cuts season-after-season
Endocrine and metabolic damage. Many female athletes lose menstruation. Male athletes lose testosterone. Reduced bone density.
The strategy
Live at your fight weight. Cut nothing in the final week.
The elite-level approach: stay within 1.5kg of your bracket year-round. Eat your meals. Sleep well. Train. The athlete who lives at 67.8kg and walks into the -68kg category fresh, full, and hydrated beats the athlete who walked in at 71kg three weeks ago and arrived at 68 kg via misery — every time.
If you cannot make a weight class with this approach, you are not in your weight class. Move up one. You will win more fights and stay in the sport longer.
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