Entering the leg weave from half guard top is the moment the passer converts a contested half guard into a dominant stapling control. The attacker’s goal is to thread their knee-side leg deep between the opponent’s legs so that their shin weaves under the bottom leg, pinning it flat and killing the knee shield. This is achieved by winning the underhook and cross-face battle first, then sliding the trapped knee free and driving it through while the upper body keeps the bottom player flattened.
The entry rewards patience over force. A passer who lunges the knee through before locking the cross-face hands the opponent a deep half guard dive, while a passer who consolidates the underhook and head position first finds the weave almost automatic. The weaving leg should travel close to the mat, instep down, so it slides under the opponent’s bottom leg rather than over it. Once the weave is set, the passer’s weight shifts toward the head and far hip, stapling the opponent flat and unlocking the knee slice, leg drag, and smash pass finishes.
This is a foundational skill in pressure passing systems. The leg weave it produces is one of the highest-percentage half guard passing platforms because it simultaneously removes the opponent’s legs from the equation and prevents knee shield recovery, leaving the bottom player with only frame-and-shrimp or deep half escapes that the established cross-face is built to deny.
From Position: Half Guard (Top)
Key Attacking Principles
What are the key principles for executing Half Guard to Leg Weave?
- Win the underhook and cross-face battle before committing the knee - upper body control precedes the leg thread
- Thread the knee-side leg deep and low, instep toward the mat, so the shin weaves UNDER the opponent’s bottom leg rather than over it
- Keep the cross-face heavy throughout to flatten the shoulders and deny hip escape during the thread
- Free your trapped knee by sliding it forward and pointing it across the opponent’s midline rather than yanking it straight out
- Maintain head position past the opponent’s far shoulder to control rotation and prevent them coming up on the underhook
- Drive weight toward the opponent’s far hip as the weave sets to staple both legs and consolidate the control
- Stay low and connected - any space created during the thread invites the deep half guard counter
Prerequisites
What do you need before attempting Half Guard to Leg Weave?
- Established half guard top position with the opponent trapping one of your legs
- Deep near-side underhook secured under the opponent’s arm to the shoulder or back
- Cross-face or head control established to flatten the opponent’s upper body
- Opponent’s knee shield cleared, collapsed, or never established
- Your hips low and your trapped knee mobile enough to slide forward and thread
- Awareness of the opponent’s far-side framing hand to anticipate the deep half dive
Execution Steps
How do you execute Half Guard to Leg Weave step by step?
- Win the underhook and flatten the opponent: From half guard top, drive your near-side arm under the opponent’s armpit to secure a deep underhook, reaching to their shoulder blade or upper back. Simultaneously bring your free arm across their face or jaw to establish the cross-face. Use this combination to flatten their shoulders to the mat, eliminating their ability to sit up onto the underhook or frame into your neck.
- Clear or prevent the knee shield: Check whether the opponent has a knee shield wedged across your hip or chest. If so, use your hip and free hand to peel the shield down past your hipline, pinning their knee toward the mat. Keep constant downward chest pressure so they cannot re-insert the shield as you prepare to thread. If no shield is present, move directly to freeing your trapped knee.
- Free the trapped knee: Slide your trapped knee forward and angle it across the opponent’s centerline rather than pulling it straight back out, which would create space. Point your knee toward their far hip so it begins to travel between their legs. Keep your shin low and your instep rotating toward the mat as the knee advances, so the leg will weave under rather than over their bottom leg.
- Thread the knee deep between the legs: Drive your knee-side leg deep between the opponent’s thighs until your knee passes their hipline. Your shin should slide under their bottom leg, weaving it so your instep traps their ankle or lower leg against the mat. This is the defining moment of the entry - the deeper the thread, the more completely you neutralize their legs and prevent knee shield recovery.
- Staple the legs and shift weight forward: With the weave set, drive your weight toward the opponent’s far hip and head, stapling both of their legs flat to the mat. Keep the cross-face heavy and your underhook deep. Your chest should be angled across their torso, pinning their upper body while the weaved leg controls their lower body, eliminating the gap they need to escape.
- Consolidate the leg weave control: Settle into the established leg weave position by lowering your hips, distributing weight between the weaved leg, your supporting leg, and your grips. Confirm your head is past their far shoulder and your underhook is intact. From here you are in the leg weave passing platform, ready to chain into knee slice, leg drag, or smash pass finishes.
Possible Outcomes
| Result | Position | Probability |
|---|---|---|
| Success | Leg Weave | 55% |
| Failure | Half Guard | 30% |
| Counter | Deep Half Guard | 15% |
Opponent Counters
How might your opponent counter Half Guard to Leg Weave?
- Opponent dives under your advancing knee to enter deep half guard (Effectiveness: High) - Your Response: As they dive, immediately drop your hips and post your far hand wide to avoid being elevated, then look to whizzer the underhook and back-step out of the deep half before they secure your leg. Re-establishing the cross-face and limiting their depth is the priority. → Leads to Deep Half Guard
- Opponent re-establishes the knee shield before you thread the knee (Effectiveness: Medium) - Your Response: Stop forcing the thread and address the shield first - use your hip and free hand to drive the knee shield down past your hipline, then re-attempt the weave once the frame is removed. Forcing through an active shield creates space for a sweep. → Leads to Half Guard
- Opponent comes up on the underhook to enter the dogfight (Effectiveness: Medium) - Your Response: Re-flatten them by driving your cross-face and dropping your weight back into their shoulder before they consolidate the upward angle. Whizzer the arm on the underhook side and circle your hips back over their bottom leg to deny the dogfight. → Leads to Half Guard
- Opponent frames into your hip and shrimps to recover full guard (Effectiveness: Medium) - Your Response: Follow their hip movement and keep the cross-face heavy to limit the angle they can create, then thread the knee on the new angle. Maintaining head and shoulder pressure prevents the framing hand from generating enough space for guard recovery. → Leads to Half Guard
Safety Considerations
What are the safety concerns for Half Guard to Leg Weave?
This entry is mechanically safe for both players when threaded with control. The main concern is the knee-threading leg: drive it between the opponent’s legs deliberately rather than kicking it through, since an uncontrolled knee can strike the partner’s inner thigh, groin, or tailbone. The cross-face should pressure the jaw and cheek, never the throat or eyes, and should be applied with steady weight rather than a sudden crank to the neck. During the deep half counter, control your descent so you do not collapse your weight onto the partner’s diving head or neck. Beginners should drill the thread slowly at low resistance to learn the under-weave path before adding pressure, protecting both partners’ knees and the bottom player’s neck.