Flying Kneebar

SAFETY: Flying Kneebar targets the Knee joint (posterior cruciate ligament, medial collateral ligament, lateral collateral ligament). Risk: Posterior cruciate ligament (PCL) tear. Release immediately upon tap.

Play as Attacker Play as Defender

The Flying Kneebar is an advanced, dynamic leg lock submission that involves jumping onto the opponent’s leg while standing and immediately transitioning to a kneebar position mid-air. This spectacular technique combines athleticism, timing, and technical precision to catch opponents off-guard during standup exchanges or guard pulls. While visually impressive and highly effective when executed properly, the Flying Kneebar carries significant risk for both practitioners and requires extensive drilling before live application. The submission targets the knee joint through hyperextension, attacking the posterior cruciate ligament (PCL), medial collateral ligament (MCL), and lateral collateral ligament (LCL) simultaneously. Due to the dynamic nature of the entry and the potential for awkward landings, this technique demands exceptional body control and spatial awareness. The Flying Kneebar is most commonly seen in no-gi competition where grips don’t interfere with the rotational mechanics, though gi variations exist using lapel and sleeve grips to control the descent. This submission represents the intersection of takedown artistry and leg lock expertise, requiring practitioners to master both the aerial component and the finishing mechanics to achieve consistent success.

Category: Joint Lock Type: Leg Lock Target Area: Knee joint (posterior cruciate ligament, medial collateral ligament, lateral collateral ligament) Starting Position: Standing Guard From Position: Standing Position () Success Rate: 40%

Safety Guide

Injury Risks:

Injury	Severity	Recovery Time
Posterior cruciate ligament (PCL) tear	CRITICAL	6-12 months with surgical reconstruction
Medial collateral ligament (MCL) sprain or tear	High	6-12 weeks for grade 2 sprain, 3-6 months for complete tear
Lateral collateral ligament (LCL) damage	High	4-8 weeks for partial tear, up to 6 months for complete tear
Meniscus tear from rotational forces during entry	High	6-12 weeks with possible surgical intervention
Hyperextension injury to knee joint capsule	Medium	2-6 weeks
Landing injuries (ankle sprains, hip impact, head trauma from failed entries)	Medium	Variable: 2-8 weeks depending on severity

Application Speed: EXTREMELY SLOW and controlled - 5-7 seconds minimum in training, NEVER use competition speed during practice

Tap Signals:

Verbal tap (say ‘tap’ clearly)
Physical hand tap (tap partner’s body or mat repeatedly)
Physical foot tap (tap mat with free foot)
Any distress signal or unusual sounds
Loss of resistance or sudden relaxation (treat as emergency tap)

Release Protocol:

Immediately release hip pressure and stop extending the knee
Release leg grip and allow partner’s leg to return to neutral position
Roll away from the leg to create space
Check with partner verbally before continuing training
If uncertain about injury, stop training and assess knee stability

Training Restrictions:

NEVER practice at full speed or with live resistance until brown belt level minimum
NEVER spike or jerk the submission - slow, progressive pressure only
NEVER practice on training partners with existing knee injuries
Always crash pad training for initial learning phases (weeks 1-8)
Beginners and intermediates should ONLY practice the entry with zero resistance
Always allow partner full tap access - never control both arms during finish
Require explicit consent before attempting this submission on training partners
Competition-banned in many rulesets (IBJJF white/blue belt) - know your tournament rules

Outcomes

Result	Position	Probability
Success	game-over	60%
Failure	Standing Position	25%
Counter	Standing Guard	15%

Attacker vs Defender

	Attacker	Defender
Focus	Execute and finish	Escape and survive
Key Principles	Timing is critical - execute during opponent’s forward step …	Early recognition is your greatest asset - identify setup cu…
Options	7 execution steps	4 defensive options

Playing as Attacker

→ Full Attacker Guide

Key Principles

Timing is critical - execute during opponent’s forward step or weight shift to maximize success and minimize resistance
Control the targeted leg immediately upon contact - secure ankle and control the knee line before rotation
Protect yourself during the fall - tuck chin, distribute impact across back/shoulders, never post with arms
Maintain tight connection throughout rotation - gap between your hip and opponent’s knee destroys finishing leverage
Hip positioning determines effectiveness - your hip must be directly behind opponent’s knee at the moment of extension
Rotation must be complete before finishing - attempting to finish mid-rotation causes injury and escape opportunities
Progressive pressure application - even in competition, ramp pressure over 2-3 seconds to allow tap response time

Execution Steps

Target Leg Selection and Initial Movement: Identify the target leg (opponent’s lead leg or leg currently bearing weight). Position yourself at …
Jump and Leg Grip Establishment: Explosively jump off your back leg while simultaneously securing the opponent’s ankle with both hand…
Hip Entry and Rotational Mechanics: As you descend, drive your inside hip directly into the back of the opponent’s knee while simultaneo…
Landing and Position Consolidation: Complete your rotation and land on your back/shoulders with proper breakfall mechanics - chin tucked…
Leg Configuration Adjustment: Refine your leg positioning for maximum control and finishing power. Your inside leg (across opponen…
Ankle Control and Alignment: Establish proper ankle control to isolate the knee joint. Pull the ankle to your chest/armpit area u…
Finishing Extension (Training Speed): Apply progressive extension by arching your back and driving your hip upward into the back of the op…

Common Mistakes

Jumping too low and diving at opponent’s legs rather than maintaining upright trajectory
- Consequence: Failed entry, easy takedown defense, and dangerous head-first landing with potential neck injury
- Correction: Jump UP first, then rotate. Your initial jump should gain height before rotation begins. Think ‘up and around’ not ‘dive and spin’.
Failing to secure ankle grip before committing full weight to the technique
- Consequence: Loss of leg control during rotation, failed submission, and awkward landing positions
- Correction: Establish firm two-handed ankle grip during flight phase before committing to rotation. If grip isn’t secure by mid-jump, abort and land on feet.
Attempting to finish before rotation is complete
- Consequence: Severe torque on opponent’s knee in unsafe direction, high injury risk, and certain escape
- Correction: Complete full 180-degree rotation until your back is on mat before applying ANY extension pressure. Position first, then finish.

Playing as Defender

→ Full Defender Guide

Key Principles

Early recognition is your greatest asset - identify setup cues before the attacker leaves the ground and deny the entry entirely by pulling your lead leg back or stepping offline
Never straighten your trapped leg once caught - maintain maximum knee bend by actively pulling your heel toward your buttock to deny the hyperextension angle
Turn into the attacker (rotate toward your trapped leg) to alleviate kneebar pressure and create heel hook exposure which is easier to defend than a locked kneebar
Establish defensive grips immediately - clasp hands around your own knee or grab behind your trapped leg’s hamstring to create a structural barrier against extension
Prioritize tapping early over heroic escape attempts - the flying entry’s momentum can produce sudden pressure spikes that damage ligaments before you feel significant pain
Control the attacker’s outside leg (the one over your torso) by pushing it toward your feet, which disrupts their finishing angle and creates space to extract your trapped leg

Recognition Cues

Attacker shifts to a 30-45 degree angle from your centerline while their hands drop toward your lead leg’s ankle or knee area - this angular positioning is the primary setup indicator
Attacker takes a quick penetration step (small explosive step forward) while their weight loads onto their back leg in preparation for the jump - their eyes will lock onto your lead leg
Attacker’s body suddenly lifts upward with hands reaching for your ankle - the brief airborne moment where their inside leg swings toward your hip signals committed entry
In gi, attacker establishes cross-sleeve grip combined with same-side pant grip at your ankle, then adjusts their stance angle - this grip configuration precedes gi-specific flying kneebar entries

Escape Paths

Turn into the kneebar by rotating toward your trapped leg while maintaining maximum knee bend and clasping hands behind your hamstring - continue rotating until you can face the attacker and begin leg extraction through standing up or driving forward into top position
Stack and drive forward by pushing your weight over the attacker’s head while bending your trapped knee and fighting their ankle grip - combine forward pressure with grip stripping to free your ankle and step out to standing or top control
Strip the ankle grip by using both hands to peel their fingers off your ankle while simultaneously bending your knee and rotating - once ankle grip breaks, rapidly extract your leg by pulling your knee toward your chest and stepping backward away from the attacker

Variations

Flying Kneebar from Guard Pull: Instead of jumping from standing range, initiate from closer distance by grabbing sleeves/wrists (gi) or overhooks (no-gi). Sit to guard pull position, but instead of establishing seated guard, immediately convert to flying kneebar by threading inside leg across hip and rotating backward. This variation has shorter flight time and more control throughout entry. (When to use: When opponent is extremely defensive to traditional flying entries or when competing under rulesets that allow guard pulls but you want to catch opponent off-guard with dynamic attack.)

Rolling Kneebar (Ground-Based Entry): From opponent’s standing position while you’re on ground (turtle, seated guard, etc.), grab their ankle with both hands and perform forward roll over your shoulder while maintaining ankle grip. As you roll, your legs configure around their leg identically to flying kneebar. This variation sacrifices surprise but increases control and reduces fall risk. (When to use: When you’re already in bottom position and opponent stands to pass, or when opponent is too defensive for aerial entry but creates opening with standing posture.)

Flying Kneebar to Heel Hook Transition: Execute standard flying kneebar entry, but if opponent immediately turns knee inward (common defense), allow their rotation and smoothly transition to inside heel hook position. Your leg configuration remains identical, but you shift grip from ankle to heel and adjust your angle to attack the exposed heel. (When to use: When opponent’s defensive pattern involves turning into the kneebar, or in rulesets where heel hooks are allowed (this creates submission dilemma).)

Gi Variation with Pant Grips: In gi competition, establish cross-sleeve and same-side pant grip before jumping. The pant grip at ankle provides more secure control during flight, while sleeve grip helps control opponent’s upper body to prevent counter-grabs. Jump and rotate as in no-gi version, but rely on pant grip security rather than skin contact. (When to use: Gi competitions where grips provide more security than no-gi ankle grabs, especially effective when opponent is moving forward aggressively.)

Flying Kneebar from Failed Single Leg Defense: When opponent shoots single leg takedown on you, instead of sprawling or defending traditionally, jump over their back and rotate to flying kneebar on the leg they’re attacking. This requires split-second recognition but converts their offense into your attack. Your rotation brings you to their back/side with leg trapped. (When to use: Against aggressive wrestlers or when opponent over-commits to single leg attempt with head low and poor posture - advanced timing required.)

From Which Positions?

Match Outcome

Successful execution of Flying Kneebar leads to → Game Over

All submissions in BJJ ultimately converge to the same terminal state: the match ends when your opponent taps.

Safety Guide

Outcomes

Attacker vs Defender

Playing as Attacker

Key Principles

Execution Steps

Common Mistakes

Playing as Defender

Key Principles

Recognition Cues

Escape Paths

Variations

From Which Positions?

Related Submissions

Additional Related Content

Match Outcome

On This Page