Here's a scene I see at almost every tournament.
A guy shows up. He's been training six months. His coach told him he's a Light — 168 lbs with the gi on. He weighed himself that morning in gym shorts and the scale said 165. Perfect, right?
Wrong.
He walks into the bullpen, the ref tells him to step on the scale wearing his full competition gi, and the number comes back 170.8 lbs.
Disqualified. No refund. No match. Six months of training, a hotel room, a gas tank, gone.
This happens EVERY tournament. It's the single most common way competitors torch their first event, and it's 100% preventable if you understand how the IBJJF weight classes actually work. Not the chart on Wikipedia. The actual rules — weigh-in in the gi, no-gi numbers that are lighter than the gi numbers, masters divisions that share the adult weight cap, and the hidden math that sinks beginners.
This is the full guide. Every division, every federation, every thing I teach my competition team before they walk into the bullpen.
Let me show you.
The Full IBJJF Adult Weight Class Chart (Gi + No-Gi)
The International Brazilian Jiu-Jitsu Federation runs 9 weight classes per gender, per ruleset. That's the most granular system in the sport — more than ADCC, more than UAEJJF, more than any federation on the planet.
Here's everything.
Adult Male — Gi Divisions
| Division | Weight (kg) | Weight (lbs) |
|---|---|---|
| Rooster | under 57.5 kg | under 127 lbs |
| Light Feather | 57.5–64 kg | 127–141.6 lbs |
| Feather | 64–70 kg | 141.6–154.6 lbs |
| Light | 70–76 kg | 154.6–168 lbs |
| Middle | 76–82.3 kg | 168–181.6 lbs |
| Medium Heavy | 82.3–88.3 kg | 181.6–195 lbs |
| Heavy | 88.3–94.3 kg | 195–208 lbs |
| Super Heavy | 94.3–100.5 kg | 208–222.1 lbs |
| Ultra Heavy | 100.5+ kg | 222.1+ lbs |
Adult Male — No-Gi Divisions
| Division | Weight (kg) | Weight (lbs) |
|---|---|---|
| Rooster | under 55.5 kg | under 122.5 lbs |
| Light Feather | 55.5–61.5 kg | 122.5–136 lbs |
| Feather | 61.5–67.5 kg | 136–149 lbs |
| Light | 67.5–73.5 kg | 149–162.5 lbs |
| Middle | 73.5–79.5 kg | 162.5–175.5 lbs |
| Medium Heavy | 79.5–85.5 kg | 175.5–188.5 lbs |
| Heavy | 85.5–91.5 kg | 188.5–202 lbs |
| Super Heavy | 91.5–97.5 kg | 202–215.5 lbs |
| Ultra Heavy | 97.5+ kg | 215.5+ lbs |
Notice something?
Every single no-gi limit is about 4–6 lbs lighter than the gi limit at the same division name. A gi Light is 168 lbs. A no-gi Light is 162.5 lbs.
That's not a mistake. A standard BJJ gi weighs 4–6 lbs (heavier brands push 7). The IBJJF weighs you in whatever uniform you're competing in. So the numbers shift to keep the actual human competitors at the same body weight across both rulesets.
This trips up EVERYONE who hops between gi and no-gi events.
Adult Female — Gi Divisions
| Division | Weight (kg) | Weight (lbs) |
|---|---|---|
| Rooster | under 48.5 kg | under 107 lbs |
| Light Feather | 48.5–53.5 kg | 107–118 lbs |
| Feather | 53.5–58.5 kg | 118–129 lbs |
| Light | 58.5–64 kg | 129–141 lbs |
| Middle | 64–69 kg | 141–152.1 lbs |
| Medium Heavy | 69–74 kg | 152.1–163.1 lbs |
| Heavy | 74–79.3 kg | 163.1–174.8 lbs |
| Super Heavy | 79.3+ kg | 174.8+ lbs |
Adult Female — No-Gi Divisions
| Division | Weight (kg) | Weight (lbs) |
|---|---|---|
| Rooster | under 46.5 kg | under 102.5 lbs |
| Light Feather | 46.5–51.5 kg | 102.5–113.5 lbs |
| Feather | 51.5–56.5 kg | 113.5–124.5 lbs |
| Light | 56.5–61.5 kg | 124.5–135.5 lbs |
| Middle | 61.5–66.5 kg | 135.5–146.5 lbs |
| Medium Heavy | 66.5–71.5 kg | 146.5–157.5 lbs |
| Heavy | 71.5–76.5 kg | 157.5–168.5 lbs |
| Super Heavy | 76.5+ kg | 168.5+ lbs |
Women get 8 divisions instead of 9. There's no female Ultra Heavy — the Super Heavy division has no upper limit.
The One Rule That Gets People DQ'd: Weigh-Ins in the Gi
Most sports weigh you the day before. Boxing weighs you at the hotel. MMA weighs you at a press conference. You get 24 hours to rehydrate, eat a steak, and walk into your fight at your real weight.
BJJ doesn't work like that.
At an IBJJF tournament, you weigh in wearing your full gi, inside the bullpen, minutes before your first match. One attempt. If you're over, you're out. No second chance. No refund on your entry fee. No rematch.
Think about what that means.
You can't cut 10 lbs overnight and rehydrate. You can't sweat it out in a sauna in the morning because you'll be dehydrated when you compete. You have to walk into the building at your competition weight, eat and drink like a normal human, and still make weight wearing 4–6 lbs of cotton and a belt.
Here's what I tell my team.
Weigh your gi at home. Not guess. Not "I think it's around 5." Put the full kit on the scale — jacket, pants, belt — and get the actual number. Then train at 3 lbs under your target division cap. That's your margin. Water weight, full stomach, the extra half-pound your gi picks up from sweating in warm-ups — all of that eats into the gap.
And don't show up having just eaten a burrito. I've watched guys gain 2 lbs in the parking lot because they thought they had breathing room.
The no-gi rule is identical in structure — weigh in wearing your rash guard and shorts, right before the match — but the weight caps are lower to account for the missing uniform.
If you're hopping between rulesets at the same event, do the math BEFORE you register. You might be a gi Light (168 lb cap) and a no-gi Middle (175.5 lb cap) as the same body. That's normal. It's the system working.
Belt and Age Divisions: How Masters, Juveniles, and Kids Fit In
Weight is only half the chart.
IBJJF also splits every competitor by belt rank and by age. You can't sandbag up or down on either axis — if you're a 42-year-old blue belt at 175 lbs, you compete in Masters 3 Blue Belt Middle. That's your bracket. You don't get to drop to adult white belt because you've only been training 8 months.
Belt divisions are the familiar ones: White, Blue, Purple, Brown, Black. At major events they sometimes split further by stripe count inside white and blue belt. If you're newer to the belt system, our complete BJJ belt system guide walks through how long each belt takes and how promotions actually work.
Age divisions look like this:
- Juvenile 1 & 2 — ages 16–17 (split by birth year)
- Adult — ages 18–29
- Masters 1 — ages 30–35
- Masters 2 — ages 36–40
- Masters 3 — ages 41–45
- Masters 4 — ages 46–50
- Masters 5 — ages 51–55
- Masters 6 — ages 56–60
- Masters 7 — ages 61 and up
Masters divisions use the same weight numbers as adult. A Masters 3 Middle is 168–181.6 lbs in the gi, same as an Adult Middle. That surprises people. They assume masters classes shrink with age. They don't.
What DOES shrink is the match clock.
| Belt | Adult Match Length |
|---|---|
| White | 5 minutes |
| Blue | 6 minutes |
| Purple | 7 minutes |
| Brown | 8 minutes |
| Black | 10 minutes |
Masters divisions typically run 1 minute shorter per belt than their adult counterparts. A Masters 5 black belt match is 6 minutes, not 10. The logic is simple — older competitors, shorter rounds, same rules.
Kids have their own system entirely, with age-appropriate weight brackets and shorter matches. If you're registering a kid, check the IBJJF kids rulebook directly — the brackets change as they grow and the rules around submissions tighten at younger ages.
IBJJF vs ADCC vs UAEJJF: Why The Numbers Change
IBJJF isn't the only game in town. The two other federations you'll bump into are ADCC and UAEJJF, and their weight classes look different for a reason.
ADCC (Abu Dhabi Combat Club) is the most prestigious no-gi event in the world. It runs once every two years. ADCC uses only 5 weight classes per gender plus an absolute:
- Men: −66 kg, −77 kg, −88 kg, −99 kg, +99 kg, and Absolute
- Women: −60 kg, +60 kg, and Absolute
Fewer divisions means bigger weight gaps between them, which creates gnarlier matchups. ADCC also recently moved to a day-before weigh-in instead of the IBJJF day-of system. That changes everything. Athletes can cut hard, rehydrate for 24 hours, and show up 10–15 lbs over their weigh-in weight. Expect bigger, stronger competitors in every bracket under ADCC rules.
UAEJJF (United Arab Emirates Jiu-Jitsu Federation) runs the Abu Dhabi World Pro and a circuit of international events. They use 7 weight classes per gender for adult men:
- Men: 56, 62, 69, 77, 85, 94, 110 kg
- Women: 49, 55, 62, 70, 90 kg
UAEJJF numbers are close to IBJJF but not identical. A 76 kg male is a Light under IBJJF and a 77 kg division competitor under UAEJJF. Different, but not dramatically.
The practical takeaway — always check the specific event's rules. "I'm a Light" means nothing if the event is ADCC (you're a −77 kg) or UAEJJF (you're in the 77 kg bracket) or a local grappling show (roll the dice). The division name is only shorthand for your federation.
That video is a perfect example of why knowing your federation matters. Some techniques are legal in one rule set and banned in another. Slams are illegal in IBJJF and most sport BJJ events — they're considered an unsafe escape. But the same move is legal in some submission grappling circuits. The rules shape the game you're playing. Learn your event's rules before you walk in, not after.
How I Train My Team for Competition
I've been competing and coaching jiu-jitsu since 1994 — over three decades on the mats. Third degree black belt. Trained with Rickson Gracie in Brazil. I've cornered white belts at their first tournament and black belts at IBJJF Worlds.
Here's my philosophy on sport BJJ, straight up:
"In the jiu-jitsu world right now, there are two main approaches as to how this art is taught. The most common way is sport jiu-jitsu. It's jiu-jitsu designed for tournaments and that's great. You can learn a lot of skill. You can gain a lot of skill doing tournaments. However, because of the rules in the sport like anything else, it's not as realistic as it could be."
I train my team for BOTH — sport and self-defense. But I'm clear about the difference. Tournament drilling teaches timing, pressure, and the feeling of rolling with 100% resistance on a clock. That's irreplaceable. If you want the broader picture of how tournament BJJ fits into practical grappling, our BJJ for self-defense overview breaks down where the rule sets overlap and where they diverge.
A few things I drill into my competition team.
Compete early, compete often. New white belts should get to their first tournament inside the first 4 months if they want to compete at all. Not because they're "ready" — because tournament anxiety is the real opponent, and the only way to kill it is to go and get punched in the face (metaphorically) a few times. Your 8th tournament is easier than your 1st. Your 20th is cake. Start the clock.
Drill tournament-legal submissions. My go-tos are the cross collar choke, the straight arm lock from guard, and the triangle. All IBJJF-legal at every belt. I avoid investing beginners in leg locks — most are illegal at white and blue belt in the gi — and save those for later.
Don't cut weight as a hobbyist. I cannot say this loud enough. If you train 3 times a week, have a day job, and bought your gi last year, don't cut weight. Compete at your walking-around weight plus the gi. My rule is simple — your first two or three tournaments, you compete AT your natural weight, not your cut weight. Cutting is a skill. Skills take training. Making weight wrong torpedoes your performance more than being in the next bracket up ever would.
Review the tape. I film my team's matches and watch them back on the drive home. Every single time. The match is half the learning — the other half is seeing what you actually did versus what you thought you did.
If you're newer to the art and haven't built a base yet, start with the fundamentals. Our BJJ training for beginners guide covers the exact 5 positions I teach first-day white belts. And if your game is weak off the bottom, the escaping side control guide covers the escapes every competitor needs before stepping on the mat.
Picking Your Division: A Simple Decision Framework
You've got the charts. You've got the rules. Now you need to figure out which division is actually yours.
Three questions. Answer them honestly.
1. What does your scale read, first thing in the morning, wearing your competition gi?
Not your training gi. Not the light summer gi. The heavy one you actually plan to compete in. First thing — before coffee, after the bathroom, whatever your natural morning weight is. Write that number down.
2. Is that number comfortable, or is it already a cut?
If you're walking around at 175 in the gi and you feel great, you're a Middle. Done. If you're walking around at 178 and you'd have to skip dinner to hit 181.6, you're still a Middle but with a narrow margin — train at 178, make weight at 180, walk into the bullpen confident. If you're walking around at 185 and you'd have to sauna-cut 4 lbs to make Middle, you're a Medium Heavy. Move up. Compete at your real weight.
3. Do you want to win your first tournament, or do you want the best competition?
Not a trick question. Most beginners want to win. That's fine. If winning is the goal, compete AT your natural weight against your actual-size competitors. You'll have the best matches and the honest result.
If you want the hardest possible test, register in the Open/Absolute division after your weight class. That's where the big dogs and the overachievers hang out — no weight limit, everyone is fair game. My team enters absolutes on purpose because losing to a guy 30 lbs heavier teaches you more than winning a 3-minute match in your bracket.
Either answer is valid. Just know which one you picked.
Walk into the bullpen knowing your number. Know your gi weight. Know your division rules. The chart is just a chart — the competitors who actually win are the ones who never let the weigh-in become the fight.
See you on the other side.
— Scott