Ibjjf Weight Classes: Gi And No-gi Limits

Navigating competitive Brazilian Jiu-Jitsu requires knowing exact scale limits before you register for a tournament. The primary keyword for this topic is ibjjf weight classes, which dictate how competitors are divided to ensure fair competition. For adult male and female competitors under the International Brazilian Jiu-Jitsu Federation, weight limits differ between gi and no-gi events because you step on the scale wearing your competition uniform. If you miss that limit by even a fraction, you're disqualified immediately with no second chances on the scale.

Understanding these divisions saves you from harsh weight-cuts or costly registration mistakes. Let's break down the exact numbers, weigh-in protocols, and common pitfalls every competitor faces.

Adult Male Gi and No-Gi Weight Classes

Male adult divisions run from roosterweight up to ultra-heavy. The limits change depending on whether you're fighting in a jacket or wearing rash guards and board shorts.

Here are the precise limits for male adults: Related analysis on this matter has been provided by BBC.

• Rooster: Gi limit is 57.5 kg (127 lb); No-Gi limit is 55.5 kg (122.6 lb).
• Light-Feather: Gi limit is 64 kg (141.6 lb); No-Gi limit is 61.5 kg (136 lb).
• Feather: Gi limit is 70 kg (154.6 lb); No-Gi limit is 67.5 kg (149 lb).
• Light: Gi limit is 76 kg (168 lb); No-Gi limit is 73.5 kg (162.6 lb).
• Middle: Gi limit is 82.3 kg (181.6 lb); No-Gi limit is 79.5 kg (175.6 lb).
• Medium-Heavy: Gi limit is 88.3 kg (195 lb); No-Gi limit is 85.5 kg (188.6 lb).
• Heavy: Gi limit is 94.3 kg (208 lb); No-Gi limit is 91.5 kg (202 lb).
• Super-Heavy: Gi limit is 100.5 kg (222 lb); No-Gi limit is 97.5 kg (215 lb).
• Ultra-Heavy: No maximum limit for gi or no-gi.

Notice that gi weight limits sit roughly 2 to 3 kg higher than no-gi limits. That difference accounts for the heavy cotton weave of your competition uniform. You can review the official requirements directly on the IBJJF Rules Page.

Adult Female Gi and No-Gi Weight Classes

Female divisions follow a similar tiered structure, starting at roosterweight and scaling upward. Just like the men's brackets, the scale rules account for whether you wear a gi jacket and pants or standard no-gi attire.

Here are the limits for female adults:

• Rooster: Gi limit is 48.5 kg (107 lb); No-Gi limit is 46.5 kg (103 lb).
• Light-Feather: Gi limit is 53.5 kg (118 lb); No-Gi limit is 51.5 kg (114 lb).
• Feather: Gi limit is 58.5 kg (129 lb); No-Gi limit is 56.5 kg (125 lb).
• Light: Gi limit is 64 kg (141.6 lb); No-Gi limit is 61.5 kg (136 lb).
• Middle: Gi limit is 69 kg (152.6 lb); No-Gi limit is 66.5 kg (147 lb).
• Medium-Heavy: Gi limit is 74 kg (163.6 lb); No-Gi limit is 71.5 kg (158 lb).
• Heavy: Gi limit is 79.3 kg (175 lb); No-Gi limit is 76.5 kg (169 lb).
• Super-Heavy: No maximum limit for gi or no-gi (note that women's divisions top out at super-heavy or ultra-heavy depending on the specific event flyer, with super-heavy acting as the final capped tier at many standard opens).

How Weigh-Ins Actually Work

You don't step on a scale hours before your bracket starts at a random side table. The protocol is strict and leaves zero room for error.

1. Uniform Check: You report to the bullpen area wearing your full competition uniform for gi tournaments, or your approved board shorts and rash guard for no-gi events.
2. The Single Scale Attempt: You get one chance to step on the official scale. There are no sauna breaks, no running in trash bags to sweat off extra grams, and no second tries.
3. Immediate Disqualification: If you register for lightweight but step on the scale over 76 kg, you're tossed from the bracket immediately. You can't pay a fee to jump up a class on tournament morning.

Because inspectors check your gi compliance right before you step on the scale, make sure your jacket length, sleeve width, and patch placements pass inspection. You can check uniform standards via Kingz BJJ Gear Guides.

Common Mistakes Competitors Make

Many grapplers ruin months of hard training by making simple logistical errors on scale day.

• Weighing naked at home: If you weigh yourself stark naked on your bathroom scale and hit 75.9 kg for a 76 kg gi division, you're going to fail. Your gi easily adds 1.5 to 2 kg. Always weigh yourself wearing the exact gi you plan to fight in.
• Ignoring fabric shrinkage: If you wash a brand-new cotton gi on high heat, it shrinks. A gi that felt lightweight last month might push you over the line today.
• Cutting too close to the edge: Scales vary between training rooms and tournament venues. If you hover 200 grams under the limit, a slight scale calibration difference will disqualify you. Leave a safe buffer.

Frequently Asked Questions

Can I change my weight division on tournament day?

No. Once registration closes and brackets are locked, tournament officials won't let you shift classes if you miss weight. If you fail the scale check, you're disqualified.

Do I weigh in with my belt?

Yes. For gi divisions, the weigh-in includes your jacket, pants, and belt. Every piece of fabric you wear onto the competition mat must be on your body when you step on the scale.

What happens if I win my weight class?

Athletes who place first, second, or third in their respective brackets often qualify to register for the absolute or open weight class, depending on the specific tournament's entry criteria and belt level.

Is there a weight allowance for the gi?

No. There is no special buffer given for the weight of your gi. The number on the scale is your total weight with the uniform on, and it must sit at or below the maximum limit for your registered class.