Atlas/COMPRESSION LOCKS/Calf Crank
Compression locks·Calf muscle/Gastrocnemius · Gi & no-gi

Calf Crank.

Calf compression using shin or forearm as wedge fulcrum

// CALF CRANK
7
DANGER / 10
Risk level
High
calf muscle/gastrocnemius
Tap urgency
Urgent
tap response
Difficulty
3
/ 5 — setup
Danger level
7
/ 10
Positions
43
entry points
Perm. damage
No
irreversible risk
//01—About this submission

What it is

Calf compression using shin or forearm as wedge fulcrum

What you do

The step-by-step execution breakdown lives in the app — mechanics, tips, and the full entry sequence.

Open1submission detailin the App Store↗
//02—Stats breakdown
Setup complexity
3/10
Learning priority
4/10
Escapability
2/10
Versatility
5/10
Danger level
7/10
//03—Safety notes
01

Tap immediately when pressure feels sharp - muscle damage accumulates faster than pain.

02

Calf cranks feel like discomfort rather than joint danger - leads to delayed tapping.

03

Never attempt explosive escape or straightening leg while wedge is locked.

04

Not recommended for white belts to apply - requires skilled progressive pressure.

05

Training partners must apply gradually and release immediately on tap signal.

//04—IBJJF belt legality
WHITE — ILLEGALBLUE — LEGALPURPLE — LEGALBROWN — LEGALBLACK — LEGAL
//05—Entries by position

43 ways in.

All43entriesin the App Store↗
CONTROLLING60
Truck
Leg locked, head controlled - twister, calf slicer, back take
13 ↗ transitionsControlling
CONTROLLING50
Twister Side Control
Leg hooked, chest heavy - twister grip, spinal pressure, back take
14 ↗ transitionsControlling
CONTROLLING50
Reverse Mount
Facing their legs, heavy pressure - attack legs, take back
12 ↗ transitionsControlling
ENTANGLING50
50/50 Guard
Inside position - heel hooks and entanglement advancement
17 ↗ transitionsEntangling
GUARDING50
Backside Single-Leg X
Behind leg control - attack legs, take back
16 ↗ transitionsGuarding
GUARDING50
Backside 50/50
Behind control with leg attacks
9 ↗ transitionsGuarding
GUARDING40
Single Leg X
Elevate and sweep from leg control
23 ↗ transitionsGuarding
CONTROLLING40
Reverse Kesa Gatame
Facing their legs, control arm - attack legs, take back
14 ↗ transitionsControlling
GUARDING40
Reverse Half Guard
Face away half guard control
13 ↗ transitionsGuarding
GUARDING40
Reap Clamp
Reap clamp control leg attacks
15 ↗ transitionsGuarding
ENTANGLING40
Outside Ashi Garami
Outside wrap - ankle locks and mobile attacks
12 ↗ transitionsEntangling
ENTANGLING40
Inside Ashi Garami
Inside position - heel hooks and ankle locks
12 ↗ transitionsEntangling
ENTANGLING40
Double Outside Ashi
Both legs trapped - heel hooks on either side
11 ↗ transitionsEntangling
ENTANGLING40
Cross Ashi Garami
Legs crossed - heel hooks with strong control
15 ↗ transitionsEntangling
ENTANGLING40
Ashi Garami
Leg trapped - straight ankle locks and position advancement
20 ↗ transitionsEntangling
ENTANGLING40
50/50 Knee Clear
Knee cleared - heel hooks with better angles
16 ↗ transitionsEntangling
ENTANGLING40
Kneebar Control
Straight-leg clamp - kneebar with ashi and back-take exits
14 ↗ transitionsEntangling
ENTANGLING40
Inside Sankaku Finish
Triangle their leg - heel hook or knee bar
16 ↗ transitionsEntangling
ENTANGLING40
False Reap
Outside leg over thigh - off-balance, heel and back threats
7 ↗ transitionsEntangling
GUARDING40
Deep Half Guard
Underneath their hips - sweep with leg control
12 ↗ transitionsGuarding
GUARDING40
Cross-Saddle
Attack with crossed entanglement and heel hooks
15 ↗ transitionsGuarding
CONTROLLING40
Crab Ride Inversion
Hooks stay connected, follow their roll, hunt for back
12 ↗ transitionsControlling
GUARDING40
Backside K-Guard
Hook behind leg - back takes, guard entries
13 ↗ transitionsGuarding
GUARDING30
X-Guard
Elevate and sweep from crossed leg hooks
20 ↗ transitionsGuarding
CONTROLLING30
Turtle
Control hips, get seatbelt, insert hooks, take the back
20 ↗ transitionsControlling
GUARDING30
Reverse De La Riva
Reverse hook control - sweeps to back exposure
21 ↗ transitionsGuarding
GUARDING30
RDLR Knee-Shield Hybrid
RDLR hook knee shield control
10 ↗ transitionsGuarding
ENTANGLING30
Reverse Outside Ashi
Reversed control - heel hooks from different angle
18 ↗ transitionsEntangling
ENTANGLING30
Reverse Ashi Garami
Outside control - reverse heel hooks and ankle locks
17 ↗ transitionsEntangling
ENTANGLING30
Outside Sankaku
Triangle locked - heel hooks and knee bars
7 ↗ transitionsEntangling
GUARDING30
Double Seated Open
Fight for grips and guard entries
19 ↗ transitionsGuarding
CONTROLLING30
Defensive Shell
Elbows tight, wait for openings, shrimp to guard when safe
8 ↗ transitionsControlling
GUARDING30
Deep Half Lockdown
Lockdown legs - sweep and back take
8 ↗ transitionsGuarding
GUARDING30
De La Riva
Hook controls shin - sweep, back take, berimbolo
23 ↗ transitionsGuarding
GUARDING20
Z-Guard
Shin frame active - prevent pressure, sweep
15 ↗ transitionsGuarding
GUARDING20
Shin-to-Shin Guard
Apply shin pressure - track movement, attack single legs
20 ↗ transitionsGuarding
GUARDING20
Open Guard
Switch guard types while attacking sweeps and submissions
29 ↗ transitionsGuarding
GUARDING20
Matrix Guard
Angle shifts and mobility for retention
19 ↗ transitionsGuarding
GUARDING20
K-Guard
Knee shield active with sweep angles
22 ↗ transitionsGuarding
GUARDING20
Headquarters Guard
Distance managed while transitioning guard systems
32 ↗ transitionsGuarding
GUARDING20
Half Guard
Fighting to free trapped leg and pass
32 ↗ transitionsGuarding
GUARDING20
Half Butterfly Guard
Control trap while sweeping from hook
14 ↗ transitionsGuarding
CONTROLLING20
Back Mount
Hooks locked tight - control hips, attack neck
14 ↗ transitionsControlling
// Calf Crank · Compression locks

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Open Calf Crank in Grapla to add it to your drilling queue, log every attempt, and watch your finish rate move over the next 30 days.

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