Knee Pass

Family

ニーパス

Transliteration
Translation

Not yet documented

Overview

The Knee Pass (knee cut / knee slice) family covers one of the most versatile and highest-percentage guard passing techniques in BJJ — driving one knee across the opponent's thigh while establishing a crossface with the upper body, slicing through the guard to achieve side control. [1] The knee cut pass is considered the Swiss Army knife of guard passing because it works against virtually every guard variation: closed guard (after breaking it open), half guard, De La Riva, butterfly, and open guard all have knee cut entries. [1],[2] The pass works from the 'headquarters' position (one knee up, one knee down between the opponent's legs) and uses diagonal forward pressure combined with the knee slice across the thigh to split the opponent's leg defence. [2],[3] The knee cut is often the first pass taught to intermediate students and remains the primary pass for many elite black belt competitors. [3]

Also known as
Knee CutKnee SlideKnee Through Pass

History & Origin

The knee cut pass has been a staple of BJJ guard passing since the art's early development, with roots in judo ne waza passing. [1] It gained prominence as a primary competition pass in the 2000s-2010s as guard systems became more complex and the knee cut proved versatile against all of them. [1],[2]

Effectiveness

The knee cut is one of the most commonly executed and highest-percentage passes at all belt levels in IBJJF competition. It works against every guard variation. [1],[2]

Lineage

The knee cut traces from judo ne waza passing through BJJ competition evolution. [1],[2]

Competition Record

The knee cut is one of the most commonly scored passes in IBJJF competition at all belt levels. [1]

Images

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Biomechanical Mechanism

Primary ActionDriving one knee diagonally across the opponent's thigh while establishing crossface control, slicing through the guard to achieve side control
Joints InvolvedNear-side knee (the cutting knee — it drives across the opponent's thigh in a slicing motion), far-side foot (posted for base and drive), shoulder (crossface drives against the opponent's jaw/neck, turning their head away), hands (controlling the opponent's far-side sleeve or lapel to prevent guard recovery)
Force VectorDiagonal forward-downward — the knee drives across and through the thigh while the upper body drives forward with crossface pressure; the combination creates a splitting force that separates the opponent's legs
Pass MechanicThe knee cut works by splitting the opponent's guard in half: the cutting knee divides the near-side and far-side legs while the crossface prevents the opponent from turning in; the pass is complete when the knee clears the thigh and the passer's hip drops to the mat in side control

Position & Entry

From headquarters positionOne knee up between the opponent's legs, drive the raised knee across their near-side thigh while establishing a crossface with the opposite arm — slice through to side control [1]
From half guard topAfter establishing crossface and underhook in top half guard, slice the trapped knee across the opponent's thigh to complete the pass
From De La Riva defenceWhen the opponent has a DLR hook, strip the hook and immediately drive the freed knee across their thigh in a knee cut [2]

Videos

Pass the Knee Shield with These 3 Strategies

0
Knee Pass·Absolute MMA St Kilda - Melbourne

The knee shield is perhaps the most common method of blocking a guard pass, learn 3 basic ways to deal with this. For mo

1 video

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Ratings

Danger Rating

Risk of injury to the person this technique is applied to

3
Moderate3/10

The knee cut is relatively safe; the primary risk is being caught in a half guard or deep half if the pass stalls, or the opponent attacking with an underhook during the pass

Difficulty

Skill level needed to execute this technique reliably

Intermediate
Competition Legality

Whether this technique is allowed under major competition rule sets

IBJJF — Legal, guard pass scores 3 points
IBJJF Rules Book v6.0, June 2024PDF
IJF — Legal — transitioning past opponent's legs is part ...
IJF Sport and Organisation Rules 2025, Article 27PDF
ADCC — Legal, guard pass scores 3 points
ADCC Rules Update, April 2025PDF
Unified MMA — Legal
Unified Rules of MMA, August 2025PDF
FIAS Sport Sambo — Legal
FIAS International Sambo Competition RulesPDF

Training Notes

The crossface makes or breaks the knee cut — without the crossface, the opponent can turn in and recover guard; the crossface must be established before or simultaneously with the knee slice [1]
Control the far-side arm — gripping the sleeve, lapel, or wrist on the far side prevents the opponent from framing and recovering
The cutting knee must go ACROSS the thigh, not just down the centre — the diagonal cutting angle is what splits the guard
Headquarters position is the launching pad — develop comfort in headquarters (one knee up, one down) before drilling the knee cut
Chain the knee cut with the leg drag and toreando — when the opponent defends the knee cut by framing, transition to an alternative pass [2]
The knee cut works from every guard — drill entries from closed guard (after break), half guard, DLR, butterfly, and open guard
In MMA, the knee cut is one of the most effective passes because it can be combined with striking

Common Mistakes

!No crossface — the pass fails without head control; the opponent turns in and recovers
!Knee cutting straight down instead of diagonally across — the diagonal angle is what creates the splitting force
!Not controlling the far arm — the far-side frame enables guard recovery
!Stalling in half guard — if the knee cut gets stuck, transition to another pass rather than grinding
!Hips too high during the cut — dropping the hip as the knee clears is essential for completing the pass
!Not stripping DLR hook before cutting — cutting with the DLR hook still attached results in getting re-guarded

Related Techniques

Counter Techniques

Setup Chain

1Establish Headquartersone knee up, one knee down
2Strip Guard Gripsremove the guard player's controlling grips
3Establish Crossfacedrive the forearm across the opponent's face
4Cut the Kneedrive the near knee diagonally across the thigh
5Drop the Hipas the knee clears, drop the hip to the mat
6Consolidateestablish side control with crossface and underhook

Sources & References

Primary Source

Jiu-Jitsu University (Saulo Ribeiro, 2008)

1BookJiu-Jitsu University (Ribeiro, 2008)

Description sources — [1] Jiu-Jitsu University (Ribeiro, 2008) [2] BJJ competition passing analysis

2BookBJJ competition analysis
3OtherJapanese Combat Sports Katakana Convention

Standard katakana transliteration of Western martial arts terminology (外来語) — used in Japanese MMA, boxing, and BJJ communities

4CitationJiu-Jitsu University (Ribeiro, 2008)

Description sources — [1] Jiu-Jitsu University (Ribeiro, 2008) [2] BJJ competition passing analysis

5CitationBJJ competition analysis

Community

Athletics

Requires

crossface pressure, hip dexterity (dropping the hip after the cut), far-arm control

Favours

heavy upper body, strong crossface

Key muscles

shoulders (crossface), hip flexors (cutting motion), quadriceps (driving through), core (connecting upper and lower body)

Sub-techniques

Notes

The knee cut/knee slide pass is the most commonly used guard pass in modern BJJ competition. It works in both gi and no-gi and chains into multiple positions. (Ribeiro, Jiu-Jitsu University; Danaher, Guard Passing instructionals)

Frequently Asked Questions

How do I prevent my opponent from using a knee shield when I'm trying to pass?

According to Absolute MMA St Kilda, the key is to keep your torso and hips extremely close to your opponent's hips as you move in—any gap allows them to establish the knee shield. By maintaining chest-to-chest contact and blocking the knee shield before it fully forms, you prevent it from becoming a problem in the first place.

What should I do if my opponent successfully gets their knee shield up?

Absolute MMA St Kilda recommends using a goose neck grip on the knee, then briefly removing your chest pressure to fold the leg, and repositioning your chest on the outside of the leg. Alternatively, if the knee shield is slightly too high, come up into a tripod position to beat your opponent's frames and gain hip control.

How do I get my chest underneath the knee shield to open it up?

Absolute MMA St Kilda emphasizes getting your hips low and arched up underneath the shield rather than hovering over the top—this creates a position where your opponent cannot effectively fight you opening their knee out.

What's the safest way to move outside the legs after establishing the pass?

According to Absolute MMA St Kilda, use your knee to press into your opponent's calf to open it. If they hook your foot, step on the mat and straighten that leg to clear the hook before opening their calf, lifting your foot, and stepping outside the legs.

How does the Knee Pass work?

The Knee Pass (knee cut / knee slice) family covers one of the most versatile and highest-percentage guard passing techniques in BJJ — driving one knee across the opponent's thigh while establishing a crossface with the upper body, slicing through the guard to achieve side control. The knee cut pass is considered the Swiss Army knife of guard passing because it works against virtually every guard variation: closed guard (after breaking it open), half guard, De La Riva, butterfly, and open guard all have knee cut entries.

Where does the Knee Pass come from?

The knee cut pass has been a staple of BJJ guard passing since the art's early development, with roots in judo ne waza passing. It gained prominence as a primary competition pass in the 2000s-2010s as guard systems became more complex and the knee cut proved versatile against all of them.

Is the Knee Pass legal in competition?

IBJJF: legal — Legal, guard pass scores 3 points; IJF: legal — Legal — transitioning past opponent's legs is part of newaza; ADCC: legal — Legal, guard pass scores 3 points; Unified MMA: legal — Legal; FIAS Sport Sambo: legal — Legal

How dangerous is the Knee Pass?

Danger rating 3/10. Low — the knee cut is relatively safe; the primary risk is being caught in a half guard or deep half if the pass stalls, or the opponent attacking with an underhook during the pass

How do I set up the Knee Pass?

The standard setup chain: Establish Headquarters → Strip Guard Grips → Establish Crossface → Cut the Knee → Drop the Hip → Consolidate.

How do I defend against the Knee Pass?

Standard counters include: Knee Shield — placing the shin across the passer's torso to prevent the cut / Underhook — fighting for the near-side underhook to prevent the crossface / Frame on the Hip — pushing against the cutting hip to create space / Deep Half Guard Entry — when the knee cut stalls, entering deep half guard.

What are the variants of the Knee Pass?

Common variants: Standard knee cut (from headquarters through the thigh to side control [1]); Reverse knee cut (cutting to the opposite side); Knee cut with far-side underhook (controlling the far arm for additional security); Knee cut to mount (continuing the knee cut motion directly to mount instead …); Long step knee cut (stepping the far leg wide before the cut for additional base); Speed knee cut (explosive fast-twitch knee cut without heavy pressure [2]).

How effective is the Knee Pass in competition?

The knee cut is one of the most commonly scored passes in IBJJF competition at all belt levels.

What are common mistakes when doing the Knee Pass?

Top errors to watch for: No crossface — the pass fails without head control; the opponent turns in and recovers / Knee cutting straight down instead of diagonally across — the diagonal angle is what creates the splitting force / Not controlling the far arm — the far-side frame enables guard recovery / Stalling in half guard — if the knee cut gets stuck, transition to another pass rather than grinding.

What are other names for the Knee Pass?

The Knee Pass is also known as Knee Cut, Knee Slide, Knee Through Pass.