IBJJF rules, explained without the jargon

How points are scored

IBJJF scoring rewards positional progress. You earn points by reaching and holding dominant positions for about three seconds of stabilized control. The values are fixed and worth memorizing:

• 2 points — takedown, sweep, or knee-on-belly
• 3 points — guard pass
• 4 points — mount, or back control with both hooks (or a body triangle)

A submission ends the match immediately, regardless of the score. That is the whole point of the sport, and no point total overrides a tap. If you want to total a live match position by position, the IBJJF points calculator tracks both athletes, advantages and penalties for you.

Advantages and penalties: the tiebreakers

When time expires and the score is level, the match is decided in order: first by advantages (awarded for nearly completing a scoring action — a deep submission attempt, a sweep you couldn't quite hold), then by penalties (called for stalling and rule infractions), then by referee decision. Advantages don't add to your score; they only matter when the points are tied. This is why a "boring" match can still be won decisively on the referee's card.

Weight divisions — and the detail everyone misses

Here is the single most important thing to understand about IBJJF weigh-ins: in the gi, you weigh in wearing your full kimono. The published division caps are gi-on weights, not your bodyweight in shorts. A gi can add anywhere from roughly 1.5 to 2.5 kg, so the number on your bathroom scale is not the number that matters at the table.

That is also why you should never plan a gi competition around no-gi weight limits, or vice versa — they use different caps because no-gi weigh-ins have no kimono on the scale. To find the right adult gi division for your weight, use the IBJJF weight class finder, which uses the verified gi-on limits.

Age divisions: it's the year, not the day

IBJJF age divisions are not based on how old you are on competition day. They are based on the age you reach during the competition year — competition year minus birth year. Adults run 18–29; Masters start at 30 and run in five-year bands (Master 1 is 30–35, up to Master 7 at 61+). A useful quirk: you may always compete down into the Adult division, but never up into an older Master bracket than your age allows. The age division lookup places your birth year in seconds.

The bottom line

Memorize the point values, weigh in wearing what you'll compete in, and check your division by the competition-year rule — not race-day math. Everything else in the rule book is detail you can look up. And before any event, confirm against the current official rule book at ibjjf.com, because the federation does revise it.