Grappling · Live terms
Brazilian Jiu-Jitsu
Brazilian jiu-jitsu is a grappling art built around leverage, positional hierarchy, and submissions—especially from the guard and the back.
Find a topic
A map of this art. Live entries are links. The rest is mapped, not written yet.
BJJ
Positions
- Guard
- Closed Guard
- Mount
- Back
Submissions
- Rear Naked Choke
- Triangle
- Armbar
Rulesets
- Gi
- No-Gi
- IBJJF
Culture
- Fighters
- Gyms
- News
What Is Brazilian Jiu-Jitsu?
Brazilian jiu-jitsu (BJJ) is a martial art and combat sport focused on taking a fight to the ground, establishing dominant positions, and finishing with joint locks or chokes. It descends from judo/newaza and was adapted in Brazil into a system where smaller practitioners can control larger opponents through leverage and timing.
In sport BJJ, matches are typically scored on takedowns, sweeps, passes, mounts, and back control, with submissions ending the bout. Training culture emphasizes drilling, positional sparring (“rolling”), and tapping early when a submission is locked.
How Brazilian Jiu-Jitsu Works
BJJ organizes the fight as a hierarchy of positions. From standing, athletes seek takedowns or pull guard. On the ground, the bottom player may play guard—using the legs to control distance—while the top player tries to pass into side control, mount, or the back. From advantageous positions, submissions such as the rear naked choke, armbar, triangle, and kimura finish the exchange.
Gi and no-gi are both core. The gi adds collar and sleeve grips; no-gi emphasizes underhooks, wrist control, head position, and body locks. Martial Index’s live term catalog currently deep-dives BJJ concepts first.
What You’ll Find Here
This hub is the live overview. Published entries are links. Fighters, gyms, rules, and news are mapped for later — even when those pages are not written yet.
- Terms. Guard, Closed Guard, Rear Naked Choke.
- Paths. White belt and Blue belt.
- Fighters. Lineage names and modern competitors — mapped, not written yet.
- Gyms. Academies and rooms — coming.
- Rules. Gi and no-gi rulesets — coming.
- News. Results and fight nights — coming.
FAQ
Questions we hear on the mats, in gyms, and when fighters compare styles.
Is Brazilian jiu-jitsu only for the ground?
Sport BJJ emphasizes the ground, but standing grips, takedowns, and guard pulls matter. Self-defense lineages also teach stand-up defense; this encyclopedia focuses on sport grappling vocabulary first among its live terms.
Gi or no-gi first?
Either works. Gi rewards patience and grip fighting; no-gi rewards athletic scrambling and underhooks. Many gyms cross-train. Closed guard and the rear naked choke appear in both.
What should a beginner learn first?
A practical start is the guard family—especially closed guard—plus escapes and one high-percentage finish such as the rear naked choke once back control appears.
How does BJJ relate to MMA and Judo?
BJJ shares newaza DNA with judo and supplies much of MMA’s ground game. Wrestling often feeds the takedown layer; Muay Thai and boxing feed the striking layer when the fight stands back up.
The Bottom Line
Brazilian jiu-jitsu is the first live style on Martial Index: a grappling encyclopedia of positions and submissions. Start with closed guard or browse the terms index.
