COMBAT NERDS

Leg lock training system

Every guard has a road to the legs.

Start from the positions you already play. We map the entries, entanglements and finishes that connect to them.

Start training

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How it works

Follow the links from guard to finish

Here’s one route through the map. Each step names the move that gets you to the next position.

  • 25 positions
  • 60 connections
  • Gi + No-Gi
Base guardButterfly
Shin Contact
Entry engineShin-on-Shin
Shin Elevator
Entry engineSingle Leg X
False Reap or Thread
EntanglementSaddle
Lethal Knot
FinishInside Heel Hook

See the whole map

Every guard, entry, entanglement and finish, with the move that links each one to the next.

Drill the next link

Technique lessons and positional sparring rounds for the position you're working on.

Track what sticks

Log sessions, keep your streak, mark positions Learning, Drilling or Mastered, and compare with your team.

FAQ

Before you tap in

Something else on your mind? Send it through the feedback board once you’re in the app.

What is Combat Nerds?

A training app for Brazilian jiu-jitsu leg locks. It starts from guards you already know, like butterfly, De La Riva or half guard, and shows the entries, entanglements and finishes that connect to them, with lessons and sparring drills for each step.

I'm a white belt. Is this for me?

Yes. The map starts at fundamental guards and builds toward advanced entanglements. Every position notes which belts and rulesets allow it, so you can see what's legal for you before you drill it.

Gi or No-Gi?

Both. Show Gi, No-Gi or both, and pick the ruleset you compete under: IBJJF Legal, IBJJF No-Gi Adult, or Sub Only / ADCC.

Do I need an account?

Not to explore. The whole map is open. Sign in with Google or Facebook when you want to log sessions, track mastery, earn badges and join friends and teams.

What does it cost?

Combat Nerds is free during early access.