If you’re a BJJ enthusiast, you may have wondered how many black belts exist globally. Determining an exact number is […]

As a practitioner of Brazilian Jiu-Jitsu, you understand the significance of the belt in your journey through this martial art.

Use this IBJJF rules hub to check scoring, uniforms, weight classes, age divisions, legal techniques, and official rule book sources before competing.

Compare IBJJF weight classes for gi and no-gi BJJ, including adult and master divisions, pounds conversions, weigh-ins, age divisions, and safety tips.

Learn how IBJJF age divisions work for kids, juveniles, adults, and masters, including the birth-year calculation and registration caveats.

Learn IBJJF no-gi rules for beginners, including scoring, uniforms, weigh-ins, legal techniques, and competition strategy.

Learn BJJ rules and scoring basics, including points, advantages, penalties, submissions, IBJJF-style scoring, and beginner competition tips.

Use this BJJ gi size chart to choose the right A, F, or W size, then adjust for body type, brand fit, shrinkage, and competition rules.

Learn IBJJF gi rules for competition, including uniform colors, fabric, measurements, belt rules, patches, under-layers, and inspection issues.

The kimura lock is a shoulder joint submission that rotates the arm behind the back, applying pressure to the shoulder