The Half Guard Masterclass
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Half Guard·JeanJacquesMachado
#halfguard #jeanjacquesmachado #bjj ----- One of the pioneers of the art of Brazilian Jiu-Jitsu and one of its greate…
Half Guard
Familyハーフガード(Hāfu Gādo)
Translation: Half guard
Overview
Half guard is a ground position where the bottom player controls ONE of the top player's legs between their own legs, creating a position that is half-way between full guard and being fully passed — once considered a last-ditch recovery position, it has been transformed into one of BJJ's most versatile and offensive guard systems. [1] Roberto 'Gordo' Correa revolutionised half guard in the 1990s after a knee injury forced him to rely on the position, developing an entire sweeping and attacking system that proved the position was far more than just a guard recovery step. [1],[2] Modern half guard encompasses multiple sub-systems — the underhook half guard (Gordo/Lucas Leite), deep half guard (Jeff Glover/Ryan Hall), Z-guard/knee shield (Bernardo Faria), Lockdown (10th Planet), and half butterfly — each with its own sweep, submission, and back-take pathways. [2],[3] Half guard is particularly valuable because it is reached naturally when guard recovery fails, making it the most commonly played guard in both gi and no-gi competition. [3]
Half GuardMeia GuardaPTHalf Guard Position
History & Origin
Half guard was long considered a transitional or inferior position in BJJ — a step between having full guard and being fully passed. [1] Roberto 'Gordo' Correa transformed half guard in the 1990s after a severe knee injury limited his closed guard game, developing the underhook system and old school sweep that proved half guard could be a complete offensive position. [1],[2] Lucas Leite further refined the underhook half guard system, winning IBJJF World Championships with a half guard-dominant game. [2],[3] Deep half guard was popularised by Jeff Glover and Ryan Hall, while Eddie Bravo's Lockdown system added a no-gi dimension. [3]
Effectiveness
Half guard is one of the most effective and practical guard positions because it is reached naturally during scrambles and guard recovery, making it the most commonly played guard in competition. [1] Lucas Leite won multiple IBJJF World Championship titles using predominantly half guard sweeps and back takes. [2] In MMA, half guard is the most commonly played bottom position because it is the natural recovery point when guard passes are attempted. [3]
Lineage
Competition Record
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Biomechanical Mechanism
Primary Action — Controlling one of the top player's legs between the bottom player's legs, creating an asymmetric position that offers both defensive control (preventing full pass) and offensive opportunity (sweeps, back takes, underhook battles)
Joints Involved — Legs (the bottom player's legs triangle or hook around one of the opponent's legs — the 'lockdown' or 'knee shield' controls distance), hips (hip movement determines whether the half guard is offensive or defensive), shoulders (the underhook battle — near-side underhook = offensive, crossface control = top player's advantage)
Force Vector — The half guard player generates force in two primary directions: inward (squeezing the trapped leg to prevent the top player from freeing it) and upward/lateral (using the underhook to come to the knees for sweeps or back takes)
Control Mechanic — Half guard works on the principle that controlling one leg prevents a complete guard pass — as long as the leg is trapped, the top player cannot achieve side control; the half guard player then uses this partial control to create offensive opportunities through the underhook battle
Position & Entry
From failed guard pass defence — When the opponent is passing your open or closed guard, trap one leg between your legs as a last line of defence — this is the most common entry to half guard [1]
From bottom side control — Frame against the opponent in side control, hip escape to create space, and insert the near-side leg to hook their leg and recover half guard
From top position (pulling to half guard) — Some grapplers deliberately pull their opponents into their half guard as an offensive strategy (Lucas Leite's approach)
From lockdown setup — From bottom half guard, cross your feet over the opponent's trapped leg in a figure-four lock (lockdown) to control their leg and flatten their base
Videos
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Ratings
Risk of injury to the person this technique is applied to
3
Moderate3/10
Moderate — half guard is relatively safe for the bottom player; the primary risks are being crossfaced (opponent drives forearm across your face, turning your head away and flattening you), being smashed flat, or having the trapped leg freed; in MMA, the crossface from top half guard can enable ground-and-pound
Skill level needed to execute this technique reliably
Beginner
Whether this technique is allowed under major competition rule sets
Restricted
— IJF — Guard pulling penalized as non-combativity — ground...
IJF Sport and Organisation Rules 2025, Article 27PDFLegal
— IBJJF — Legal — guard is fundamental to BJJ, sweeps from ...
IBJJF Rules Book v6.0, June 2024PDF— ADCC — Legal, guard pull penalized -1 point in points por...
ADCC Rules Update, April 2025PDF— Unified MMA — Legal — no penalty for playing guard
Unified Rules of MMA, August 2025PDF— FIAS Sport Sambo — Legal
FIAS International Sambo Competition RulesPDFTraining Notes
✓The underhook is everything in half guard — whoever wins the underhook battle usually wins the position; from the bottom, fight for the near-side underhook relentlessly (Gordo, Lucas Leite approach) [1]
✓The knee shield (Z-guard) is the most important defensive frame — placing the shin across the opponent's chest creates a barrier that prevents crossface and smashing; learn to transition between knee shield and underhook half guard
✓Deep half guard requires comfort underneath your opponent — drill getting your hips deep under the opponent's hips until it is natural; the sweep mechanics are powerful but the entry is psychologically challenging
✓In no-gi, the underhook is even more critical because there are no collar grips for alternative control
✓Half guard is the most common 'recovery' position — when guard passes are happening, recovering to half guard is the last line of defence; drill half guard recovery from every passing situation
✓Train against the crossface — the top player's crossface is the primary weapon against half guard; develop the ability to fight through the crossface and re-establish the underhook [2]
✓The lockdown (10th Planet) is a powerful no-gi half guard tool — it prevents the top player from freeing their leg and creates a platform for sweeps; drill the lockdown entry and electric chair sweep
✓Combine sweeps with back takes — the old school sweep and the roll-under back take chain together from the underhook half guard
Common Mistakes
!Lying flat in half guard without an underhook — flat half guard with no underhook is the worst-case scenario; the top player can crossface and smash at will
!Not fighting for the underhook — accepting bottom half guard without immediately fighting for the near-side underhook surrenders the initiative
!Knee shield too low — the shin frame should be across the opponent's chest/shoulder, not across the belly; a low knee shield is easily bypassed
!Staying in half guard without attacking — half guard is a transitional position; staying in it passively allows the top player to methodically work the pass
!Ignoring the crossface — allowing the top player to drive the crossface across your face without resistance flattens you and kills your offensive options
!Not addressing the far-side leg — in deep half and regular half guard, controlling the opponent's far leg is critical for completing sweeps
!Using half guard as a stalling position — in competition, stalling in half guard may result in the referee standing both fighters up
Related Techniques
Closed Guard — the more controlling guard that half guard often transitions fromOpen Guard — alternative guard positionsGuard Pass (Half Guard Pass) — the top player's techniques for freeing the trapped legSweep (Old School, Deep Half Sweep) — primary offensive tools from half guardBack Take — accessible from underhook half guardLockdown — 10th Planet half guard control system
Counter Techniques
Crossface — driving the forearm across the bottom player's face to flatten them and kill the underhookFree the Leg — using hip movement and knee slicing to extract the trapped legUnderhook Counter (Whizzer) — using an overhook with hip pressure to counter the bottom player's underhookFlatten — driving chest pressure to flatten the half guard player on their backSwitch Hips — switching the hips to change the angle and free the trapped leg
Setup Chain
1Recover Half Guard — trap one of the opponent's legs when your full guard is being passed
2Establish Knee Shield — place the shin across the opponent's torso to create space
3Win the Underhook — fight for the near-side underhook to gain offensive initiative
4Come to Knees — use the underhook to rise to the knees while controlling the opponent's leg
5Sweep or Back Take — drive forward for the sweep or turn the corner for the back take
6Follow Through — establish top position or back control after the technique succeeds
Sources & References
Primary Source
Jiu-Jitsu University (Saulo Ribeiro, 2008)
1BookMastering the Rubber Guard (Bravo, 2006)
2BookDeep Half Guard (Ryan Hall instructional)
3BookJiu-Jitsu University (Ribeiro, 2008)
Description sources — [1] Jiu-Jitsu University (Ribeiro, 2008) [2] Roberto Gordo competition record and instructional lineage [3] Lucas Leite, Jeff Glover, Eddie Bravo career records
4BookThe Half Guard (various BJJ instructionals)
History sources — [1] Roberto Gordo's knee injury and half guard development story [2] Lucas Leite IBJJF titles [3] Deep half and lockdown innovation
5CitationJiu-Jitsu University (Ribeiro, 2008)
Description sources — [1] Jiu-Jitsu University (Ribeiro, 2008) [2] Roberto Gordo competition record and instructional lineage [3] Lucas Leite, Jeff Glover, Eddie Bravo career records
6CitationThe Half Guard (various BJJ instructionals)
History sources — [1] Roberto Gordo's knee injury and half guard development story [2] Lucas Leite IBJJF titles [3] Deep half and lockdown innovation
7CitationMastering the Rubber Guard (Bravo, 2006)
8CitationDeep Half Guard (Ryan Hall instructional)
Community
Athletics
Requires
hip mobility (creating angles from the bottom), upper body strength (winning the underhook battle), leg strength (maintaining the leg trap)
Favours
strong shoulders (underhook and whizzer battles), compact build (easier to get underneath for deep half), grip strength
Key muscles
shoulders (underhook), core (hip switching and coming to knees), hamstrings (trapping the leg), forearms (framing and grip fighting)
Sub-techniques
Notes
The half guard was traditionally considered a failed position until Roberto 'Gordo' Correa revolutionized it in the 1990s after a knee injury limited his full guard. Today it is one of the most sophisticated guard systems in BJJ. (Ribeiro, Jiu-Jitsu University)
Frequently Asked Questions
What should my main objective be when entering half guard instead of trying to pass the guard completely?
Jean Jacques Machado teaches that your objective should be to get into a solid half-guard position itself, not to immediately pass. He emphasizes that by focusing on establishing and maintaining good half-guard control, you often end up passing the guard completely anyway, but with better positioning and safety.
How should I position my shoulders and upper body in half guard?
Keep your shoulders always behind the opponent's belt line rather than ahead of it. Jean Jacques Machado stresses keeping your shoulders back and your arm under the opponent's shoulder while using the back of your hand on their leg rather than hugging it tightly.
What's the key to controlling my opponent's knee in half guard?
Block the knee with your hip rather than just your leg. Jean Jacques Machado emphasizes positioning your leg in front of the opponent's knee and using hip pressure to block it, which prevents them from recovering guard or escaping easily.
Should I squeeze tightly with my hands and arms to maintain half guard control?
No—Jean Jacques Machado warns against hugging too tightly, as this actually helps your opponent escape. Instead, maintain control through proper positioning and blocking with your knee and hip, and use your hands more for framing and directing movement rather than gripping pressure.
How does the Half Guard work?
Half guard is a ground position where the bottom player controls ONE of the top player's legs between their own legs, creating a position that is half-way between full guard and being fully passed — once considered a last-ditch recovery position, it has been transformed into one of BJJ's most versatile and offensive guard systems. Roberto 'Gordo' Correa revolutionised half guard in the 1990s after a knee injury forced him to rely on the position, developing an entire sweeping and attacking system that proved the position was far more than just a guard recovery step.
Where does the Half Guard come from?
Half guard was long considered a transitional or inferior position in BJJ — a step between having full guard and being fully passed. Roberto 'Gordo' Correa transformed half guard in the 1990s after a severe knee injury limited his closed guard game, developing the underhook system and old school sweep that proved half guard could be a complete offensive position.
Is the Half Guard legal in competition?
IBJJF: legal — Legal — guard is fundamental to BJJ, sweeps from guard score 2 points; IJF: restricted — Guard pulling penalized as non-combativity — groundwork from guard permitted …; ADCC: legal — Legal, guard pull penalized -1 point in points portion; Unified MMA: legal — Legal — no penalty for playing guard; FIAS Sport Sambo: legal — Legal
How dangerous is the Half Guard?
Danger rating 3/10. Low-moderate — half guard is relatively safe for the bottom player; the primary risks are being crossfaced (opponent drives forearm across your face, turning your head away and flattening you), being smashed flat, or having the trapped leg freed; in MMA, the crossface from top half guard can enable ground-and-pound
How do I set up the Half Guard?
The standard setup chain: Recover Half Guard → Establish Knee Shield → Win the Underhook → Come to Knees → Sweep or Back Take → Follow Through.
How do I defend against the Half Guard?
Standard counters include: Crossface — driving the forearm across the bottom player's face to flatten them and kill the underhook / Free the Leg — using hip movement and knee slicing to extract the trapped leg / Underhook Counter (Whizzer) — using an overhook with hip pressure to counter the bottom player's underhook / Flatten — driving chest pressure to flatten the half guard player on their back.
What are the variants of the Half Guard?
Common variants: Underhook half guard (securing an underhook on the near side to come to the kne…); Z-guard (knee shield) (placing the shin across the opponent's torso as a frame t…); Deep half guard (going deep underneath the opponent by sliding under their…); Lockdown (10th Planet system; crossing the feet in a figure-four ov…); Half butterfly (combining a butterfly hook with half guard control; hybri…); Coyote guard (a De La Riva-style hook from half guard position; creates…).
How effective is the Half Guard in competition?
Half guard is the most commonly played guard in both IBJJF and ADCC competition. Lucas Leite won multiple World Championship titles from half guard.
What are common mistakes when doing the Half Guard?
Top errors to watch for: Lying flat in half guard without an underhook — flat half guard with no underhook is the worst-case scenario; the top… / Not fighting for the underhook — accepting bottom half guard without immediately fighting for the near-side underhook… / Knee shield too low — the shin frame should be across the opponent's chest/shoulder, not across the belly; a low knee… / Staying in half guard without attacking — half guard is a transitional position; staying in it passively allows the t….
What are other names for the Half Guard?
The Half Guard is also known as Hāfu Gādo, Half Guard, Meia Guarda, Half Guard Position.