IBJJF kids rules 2026: what’s legal at ages 4 to 17

Under Article 6, applying a hold prohibited for your division is a severe foul. The Rule Book’s “TABLE: Technical Fouls – Illegal Moves” (and matching Technical Fouls & Illegal Moves poster) marks prohibited techniques by age and belt. A red mark means illegal for that column.

IBJJF age divisions use birth year, not the exact birthday on competition day. Kids and juveniles register only in the birth-year division shown on the event page. Juveniles may move up one juvenile age band when alone on Registration Checkday if a legal guardian requests it, but they cannot move into Adult.

This article summarizes the kids and juvenile columns from IBJJF Rule Book v6.1 (June 2024) materials published on ibjjf.com. It is not a reprint of every footnote. Event organizers and gyms can still add stricter limits. To see the column for one athlete, use the IBJJF rules checker.

In the 4–12 column, IBJJF marks as illegal: submission techniques that stretch the legs apart; chokes with spinal lock; straight foot locks; sleeve Ezekiel chokes; frontal guillotine chokes; omoplatas; triangles that pull the head; arm triangles; closed-guard locks that compress the kidneys or ribs; wrist locks; single-leg takedowns with the attacker’s head outside the opponent’s body; bicep slicers; calf slicers; knee bars; toe holds; twisting a straight foot lock toward the free foot; heel hooks; knee-twisting locks; knee reaping; outward-pressure toe holds; slams; spinal locks without a choke; scissor takedowns; bending fingers backward; belt throws that dump a single-leg attacker onto the head; and suplexes that land the opponent’s head or neck on the mat.

Practically, kids competition finishing should stay on clear armbars, collar chokes without spinal cranking, and other holds your coach has cleared for that age — never assume an adult white-belt legal attack is allowed. The kimura is not on the Illegal Moves table, so no age column bans it by name. The same goes for a rear naked choke that chokes without cranking the spine. A triangle choke is legal too, as long as you do not pull the head down to finish it.

The 13–15 column still marks straight foot locks, Ezekiel chokes, frontal guillotines, omoplatas, head-pulling triangles, arm triangles, wrist locks, compression locks, knee bars, toe holds, heel hooks, spinal locks without choke, slams, and the other severe fouls listed above.

IBJJF also forbids jumping closed guard on a standing opponent in under-15 divisions for all belts (and in every white-belt age group), including flying triangles and flying armbars. The referee restarts both athletes standing.

• Straight foot lock is legal in this column — a major change from ages 4–15
• Omoplata, frontal guillotine, Ezekiel, arm triangle, and standard triangle entries become available when applied legally
• Wrist locks, kidney/rib compression locks from closed guard, bicep/calf slicers, knee bars, and toe holds remain illegal
• Heel hooks, knee reaping, and knee-twisting locks stay illegal outside adult brown/black no-gi
• Slams, spinal locks without choke, scissor takedowns, and finger bends remain illegal in every division

The ADCC World Championship and Trials rules are an adult catalog, but the ADCC Opens publish their own legal-techniques grid with kids 12-and-under, teen 13–14 and teen 15–17 columns, each split into beginner/intermediate and advanced. On that grid, heel hooks, knee bars, toe holds, slicers, wrist locks and neck cranks are illegal in every one of those youth columns, and the submission legality matrix sets it beside the IBJJF age columns. Other youth or academy ADCC-style events publish their own age rules, so do not import adult ADCC heel-hook legality into a kids IBJJF bracket.

Many academies ban extra techniques in kids classes even when IBJJF would allow them later. Competition preparation should start from the coach’s room rules, then match the specific championship rulebook and Illegal Moves poster.