The Knee Through pass is a fundamental half guard passing technique that involves systematically inserting the trapped knee through the opponent’s guard while maintaining upper body control. This pass is particularly effective against defensive half guard players who rely on the knee shield or traditional half guard frames. The technique exploits the natural weakness in the half guard structure when proper shoulder pressure and knee positioning combine to create an overwhelming passing sequence.
The Knee Through differs from the Knee Slice in that it emphasizes driving the knee completely through the guard rather than cutting across, making it especially effective when the opponent has a strong underhook or is attempting to recover full guard. Where the Knee Slice uses lateral hip movement and an angular cutting motion, the Knee Through relies on forward drive and sustained pressure along a straight line. This distinction matters because opponents who defend well against the lateral cut of the Knee Slice often leave themselves vulnerable to the direct penetration of the Knee Through.
This pass forms the cornerstone of pressure-based passing systems and serves as a critical transition between standing passes and consolidated top positions. Its high success rate at advanced levels stems from the difficulty of defending simultaneous upper body pressure and forward knee drive. The technique chains naturally with the Knee Slice Pass and Long Step Pass, creating a three-option passing framework that covers the primary defensive reactions from half guard bottom.
From Position: Half Guard (Top) Success Rate: 68%
Possible Outcomes
| Result | Position | Probability |
|---|---|---|
| Success | Side Control | 68% |
| Failure | Half Guard | 20% |
| Counter | Half Guard | 12% |
Attacker vs Defender
| Attacker | Defender | |
|---|---|---|
| Focus | Execute technique | Prevent or counter |
| Key Principles | Establish dominant shoulder pressure before initiating any k… | Win the underhook battle early because the near side underho… |
| Options | 6 execution steps | 4 defensive options |
Playing as Attacker
Key Principles
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Establish dominant shoulder pressure before initiating any knee movement to compress defensive frames
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Control the opponent’s near side arm to prevent their primary defensive weapon, the underhook
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Drive the knee through in a straight line rather than cutting across to maintain pressure alignment
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Maintain continuous connection between hip pressure and shoulder pressure throughout the entire pass
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Use the opponent’s guard retention attempts as energy to accelerate your knee through their structure
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Consolidate side control immediately after clearing the legs before opponent can re-guard
Execution Steps
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Establish crossface control: Secure a strong crossface across the opponent’s face using your near shoulder, driving their head aw…
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Control near side arm: With your free hand, control the opponent’s near wrist or sleeve to prevent them from establishing a…
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Align hip and shoulder pressure: Position your hips directly behind your shoulders, creating a straight line of pressure from shoulde…
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Drive knee forward and through: Begin driving the trapped knee forward in a straight line through the opponent’s guard structure, no…
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Clear the bottom leg: As your knee drives through, use small circular motions or a slight hop to clear your foot over the …
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Consolidate side control: Once your leg is free, immediately bring your knee to the mat and establish side control position. Y…
Common Mistakes
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Attempting to drive knee through before establishing sufficient shoulder pressure
- Consequence: Opponent easily frames against your hips and prevents the pass, or recovers full guard through the space created by your movement
- Correction: Prioritize crossface and shoulder pressure first. Your upper body controls should be locked in and heavy before any leg movement begins.
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Allowing opponent to establish underhook during the pass
- Consequence: Opponent uses underhook to create distance, come to their knees in dogfight, or execute sweeps
- Correction: Maintain constant awareness of near side arm control. If you lose the underhook battle, stop the pass and address it immediately before continuing.
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Driving knee at an angle instead of straight through
- Consequence: Your leg cuts across their body instead of clearing, leaving you vulnerable to leg recapture, sweeps, or re-guard
- Correction: Focus on driving your knee in a straight line toward the far side of the mat. Your knee should track forward, not laterally across their centerline.
Playing as Defender
Key Principles
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Win the underhook battle early because the near side underhook is your most powerful tool for preventing the pass and creating offensive opportunities
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Maintain an active knee shield or frames to prevent the top player from achieving chest-to-chest pressure alignment
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Never allow your hips to become flat on the mat, as staying on your side preserves hip mobility for escapes and guard recovery
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Recognize the Knee Through setup early and respond before the knee begins its forward drive, when defense is still high-percentage
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Create angles through hip escape movement that force the passer to realign before continuing, buying time and disrupting their pressure sequence
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Have a backup plan for each phase of the pass, transitioning from prevention to disruption to guard recovery as the pass progresses
Recognition Cues
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Top player establishes heavy crossface pressure and begins driving your head away from them while controlling your near arm or denying your underhook
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You feel the top player’s hips align directly behind their shoulders, creating a unified forward pressure vector rather than angled or offset weight
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The trapped knee begins subtle forward movement or external rotation, indicating the passer is preparing to drive through rather than cut across
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Top player’s free hand moves to control your far hip or far knee, indicating they are addressing potential guard recovery before committing to the pass
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Increasing forward pressure through your chest combined with the passer’s weight shifting toward the trapped leg side
Defensive Options
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Establish near side underhook and drive into the passer, creating space and threatening to come to knees for dogfight or back take - When: Early in the pass sequence before the passer has established dominant crossface and before the knee drive begins. This is the highest-percentage defense when timed correctly.
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Insert knee shield across the passer’s chest or hip line to create distance and prevent shoulder pressure from landing - When: When you feel the passer beginning to settle their weight and align pressure but before the knee drive has started. The knee shield must be inserted before chest-to-chest contact is established.
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Hip escape away from the passer while maintaining leg entanglement, creating an angle that disrupts their aligned pressure - When: During the knee drive phase when the passer is committed to forward movement. The hip escape redirects their force and can create enough space for guard recovery or knee shield re-insertion.
Position Integration
The Knee Through pass represents a fundamental element in the pressure passing system and serves as a critical transitional technique between half guard top control and consolidated side control. It integrates seamlessly with the broader half guard passing framework, complementing techniques like the Knee Slice Pass, Long Step Pass, and Back Step Pass. When the opponent defends the Knee Through by establishing an underhook, the Knee Slice becomes available. When they extend a knee shield, the Long Step Pass bypasses it. This three-option framework creates a passing dilemma where defending one pass opens vulnerability to another. The technique is particularly valuable because it maintains constant pressure throughout the passing sequence, preventing the opponent from generating offensive attacks or transitions. As part of a complete passing system, the Knee Through connects naturally to Side Control consolidation, which then opens the entire top control progression including transitions to Mount, North-South, Knee on Belly, and submission attacks.