Quick answer: IBJJF rules cover how matches are scored, what uniforms are legal, which techniques are allowed by age and belt, how weight and age divisions work, and how penalties or disqualifications are handled. The official source is the IBJJF Rules page, which links to the rule book, update guide, and technical fouls/illegal moves poster. Use this GrapplerHQ guide as a practical map, then verify the current IBJJF rule book and your event page before competing.
Last updated: June 15, 2026. This page is an IBJJF rules hub for competitors, coaches, and parents who need the main rule categories in one place. It links to GrapplerHQ’s detailed guides for scoring, weight classes, age divisions, gi rules, and no-gi rules while pointing back to IBJJF for official decisions.
IBJJF rules quick reference
| Rule area | What to check | Best next page |
|---|---|---|
| Scoring | Points, advantages, penalties, referee decisions, and disqualifications | BJJ rules and scoring |
| Points | Mount, back control, guard pass, takedown, sweep, and knee-on-belly scoring | BJJ points system |
| Weight classes | Gi/no-gi limits, weigh-in process, and event weight chart | IBJJF weight classes |
| Age divisions | Birth-year calculation, adult, master, juvenile, and kids divisions | IBJJF age divisions |
| Gi uniform | Allowed colors, belt, patch placement, measurements, and condition | IBJJF gi rules |
| No-gi uniform | Rash guard, shorts/spats, rank color, pockets, zippers, and metal/plastic restrictions | IBJJF no-gi rules |
| Legal techniques | Submissions and positions allowed by belt, age, and gi/no-gi format | Use the official IBJJF rule book and technical fouls poster |
Where to find the official IBJJF rule book
The official starting point is the IBJJF Books and Videos page. That page links to the IBJJF Rule Book, the Rules Update Guide, the Technical Fouls & Illegal Moves Poster, and IBJJF rules video resources.
For competition decisions, the official IBJJF documents and the event page matter more than any blog summary. GrapplerHQ can help you understand the structure, but the rule book, update guide, and event page should be treated as final sources.
How IBJJF scoring works
IBJJF-style scoring rewards positional progress and control. A useful beginner memory aid is 4 points for mount or back control, 3 points for a guard pass, and 2 points for a takedown, sweep, or knee-on-belly. Advantages and penalties can decide close matches when points are tied.
If you need the scoring basics, start with GrapplerHQ’s BJJ rules and scoring guide. If you specifically want the score values and common confusion points, use the BJJ points system guide.
IBJJF weight and age division rules
IBJJF competitors need to confirm both weight division and age division before registering. IBJJF tells athletes to use the event page’s weight chart and Belt & Age Divisions table. The weight chart gives the maximum allowed weight for the registered division with uniform on, and age division is based on the event year minus birth year.
Use GrapplerHQ’s IBJJF weight classes guide for gi/no-gi weight planning and the IBJJF age divisions guide for adult, master, juvenile, and kids division logic.
IBJJF gi and no-gi uniform rules
IBJJF uniform rules are detailed enough that athletes should not guess. The official IBJJF uniform page covers gi material, gi colors, patches, belt requirements, measurements, other gi requirements, and no-gi uniform requirements.
For a practical breakdown, use GrapplerHQ’s IBJJF gi rules guide and IBJJF no-gi rules guide. If you are buying a gi, the BJJ gi size chart can help with fit before you check competition measurements.
Legal and illegal techniques
Legal techniques depend on age, belt, and whether the event is gi or no-gi. Some submissions that are legal for adult upper belts may be illegal for white belts, juveniles, or kids. Do not rely on memory from YouTube clips, gym rounds, or old forum posts when a tournament is coming up.
For this category, the official IBJJF Rule Book and Technical Fouls & Illegal Moves Poster should be your source of truth. GrapplerHQ will only publish legal/illegal technique pages after extra factual review because a wrong answer here can cost someone a match.
IBJJF rules checklist before competing
- Open the event page: confirm registration dates, schedule notes, weight chart, and Belt & Age Divisions table.
- Check your division: confirm age, belt, sex, weight, and gi/no-gi format.
- Review scoring: know the points, advantages, penalties, and common ways matches are decided.
- Inspect your uniform: check gi color, belt, patches, measurements, rash guard, shorts, pockets, and metal/plastic restrictions.
- Review legal techniques: ask your coach to check your age/belt legal technique list before the event.
- Use official documents: download the current IBJJF rule book and update guide from IBJJF before competing.
Bottom line
IBJJF rules are not just about points. They include scoring, penalties, uniform requirements, age divisions, weight classes, weigh-ins, and legal techniques. Use this page as a practical map of what to check, then verify the current official IBJJF rule book, update guide, technical fouls poster, and event page before you compete.
FAQ
Where can I find the official IBJJF rules?
The official IBJJF Books and Videos page links to the rule book, rules update guide, technical fouls and illegal moves poster, and rules videos.
Are IBJJF rules the same as all BJJ tournament rules?
No. IBJJF rules are a major sport BJJ reference point, but local tournaments and other organizations may use different scoring, overtime, uniform, weigh-in, or legal technique rules.
What should beginners check before an IBJJF tournament?
Beginners should check the event page, weight class, age division, uniform rules, scoring basics, and legal techniques for their belt and age division.
Do IBJJF legal techniques change by belt?
Yes. Legal and illegal techniques can depend on age, belt, and gi/no-gi format, so athletes should use the official rule book and ask their coach before competing.
