Straight Ankle Lock
Also known as straight foot lock, botinha, achilles lock
A linear foot and ankle submission commonly attacked from straight ashi and related one-leg entanglements.
At a glance
- Family
- Submission
- Format
- Gi & no-gi
- Level
- Intermediate
- Connections
- 4 techniques
Concept
What it is
The straight ankle lock controls the opponent's leg while the attacker wraps the lower forearm around the ankle line. Unlike rotational heel hooks, its primary finishing direction is generally described as linear extension through the foot and ankle.
High-level foot-lock systems depend on leg control, hip position, and preventing the opponent from clearing their knee. The same entanglement also creates sweeps and stand-ups, so the position remains useful when the finish is defended.
Core mechanics
Key principles
- Control the opponent's knee line before focusing on the foot.
- Keep the wrapping arm connected high on the ankle line.
- Use the legs to limit rotation and standing escapes.
- Apply pressure slowly; foot and ankle injuries can occur before pain feels dramatic.
System map
How it connects
Jiu-jitsu techniques work in sequences. These are common conceptual routes in, productive next steps, and the defensive priorities that shape the exchange.
Common entries
Single-leg X
Maintain straight-ashi control after off-balancing the opponent.
Open guard
Collect a foot while connecting both knees around the captured leg.
50/50
Control the near foot while protecting your own knee line.
Next actions
Sweep
Use the leg entanglement to put the opponent on the mat and come on top.
Technical stand-up
Keep the captured leg and rise when the opponent retracts the foot.
X guard
Move underneath the hips if the opponent stands and frees the foot.
Defensive priorities
Free the knee line
Move the knee beyond the attacker's legs before rotating away.
Clear the wrapping arm
Hand fight the forearm and recover the heel toward the mat.
Control the secondary leg
Prevent the attacker from maintaining hip connection while you disengage.
Competition connections
Athletes associated with Straight Ankle Lock
Keep exploring
Related techniques
Guard
Single-Leg X
A one-leg entanglement that controls the hip and knee line for sweeps, stand-ups, and straight ankle-lock attacks.
Guard
50/50 Guard
A mirrored leg entanglement in which both athletes control a leg, creating battles over balance, knee line, heel exposure, and top position.
Submission
Inside Heel Hook
A rotational leg submission that controls the knee line and turns the exposed heel inward; it demands advanced supervision and early tapping.
Submission
Kneebar
A straight leg lock that controls the hips and knee while extending the leg between the attacker's body and arms.
Rules and reference sources
Rules evolve. The official organizer documents below are the source of truth for competition legality; the guide above explains the technique conceptually.