Rear Naked Choke from Harness

SAFETY: Rear Naked Choke from Harness targets the Carotid arteries and jugular veins. Risk: Loss of consciousness from bilateral carotid compression. Release immediately upon tap.

Play as Attacker Play as Defender

The Rear Naked Choke from Harness is the highest-percentage submission in Brazilian Jiu-Jitsu, representing the natural offensive culmination of the seatbelt grip control system. From the harness position, the attacker has already established the over-under arm configuration that serves as the foundation for the choking mechanics. The transition from harness grip to rear naked choke involves systematically advancing the choking arm from its controlling position across the opponent’s chest to underneath the chin, where it compresses the carotid arteries bilaterally.

What distinguishes this entry specifically is the pre-existing structural control. Unlike attacks from scramble positions where the attacker must simultaneously establish control and threaten the neck, the harness provides a stable platform from which to methodically work past hand-fighting defenses. The underhook arm maintains postural control and prevents the rotation needed to escape, while the choking arm progressively advances toward the neck.

Strategically, this creates a cascading dilemma system. The opponent must commit both hands to defending the choking arm, preventing them from removing hooks or creating escape angles. If they release grip control to fight hooks or create space, the choking arm advances. This tension between positional defense and submission defense makes the harness-based RNC the cornerstone of every modern back attack system.

Category: Choke Type: Blood Choke Target Area: Carotid arteries and jugular veins Starting Position: Harness From Position: Harness (Top) Success Rate: 65%

Safety Guide

Injury Risks:

Injury	Severity	Recovery Time
Loss of consciousness from bilateral carotid compression	High	Immediate to 30 seconds with proper release
Trachea damage from improper forearm placement on windpipe	CRITICAL	2-6 weeks, potential permanent damage
Cervical spine strain from excessive cranking or twisting	Medium	3-14 days depending on severity
Carotid artery dissection from excessive or rapid force	CRITICAL	Immediate medical attention required, weeks to months

Application Speed: SLOW and progressive - 3-5 seconds minimum squeeze in training. Never snap or jerk the choke. Partner should have full awareness of pressure building before the choke becomes tight.

Tap Signals:

• Verbal tap (say ‘tap’ or any verbal sound indicating submission)
• Physical hand tap on opponent’s body, arm, or mat (multiple taps)
• Physical foot tap on mat when hands are trapped
• Going limp or loss of consciousness requires immediate release
• Any distress signal, unusual gurgling, or panicked movement

Release Protocol:

1. Immediately release choking arm upon any tap signal
2. Remove hooks and disengage body contact
3. Gently guide partner to side-lying recovery position
4. Monitor consciousness and breathing for 30 seconds minimum
5. If partner lost consciousness, keep them lying down with legs slightly elevated until fully alert
6. Never allow an unconscious partner to sit up or stand immediately

Training Restrictions:

• Never use competition speed or intensity when drilling the choke
• Never apply pressure to the trachea or windpipe - blade of wrist targets carotids only
• Always ensure partner has clear tap access with at least one hand
• Stop immediately if partner makes any distress sound or appears to panic
• Never hold a choke past the tap for any reason, regardless of competition preparation
• Beginners must practice with extremely slow, controlled progression only

Outcomes

Result	Position	Probability
Success	game-over	65%
Failure	Harness	23%
Counter	Closed Guard	12%

Attacker vs Defender

	Attacker	Defender
Focus	Execute and finish	Escape and survive
Key Principles	Maintain chest-to-back connection throughout the entire chok…	Immediately establish two-on-one grip control on the choking…
Options	7 execution steps	4 defensive options

Playing as Attacker

→ Full Attacker Guide

Key Principles

• Maintain chest-to-back connection throughout the entire choke transition to prevent the opponent from creating the space needed to turn or escape

• Advance the choking arm in small increments using elbow walking rather than attempting one large movement that the opponent can anticipate and block

• Use the underhook arm to control the opponent’s posture and prevent them from turning into you while the choking arm advances toward the neck

• Create grip-breaking dilemmas by threatening the arm advancement from multiple angles so the opponent cannot establish a static two-on-one defense

• Apply the squeeze through chest expansion and structural mechanics rather than relying on arm strength alone, which fatigues rapidly

• Keep hooks active and engaged to prevent the opponent from using hip escapes or turns as an alternative to hand-fighting the choking arm

Execution Steps

• Confirm harness control and assess defensive posture: Before initiating the choke transition, verify that your seatbelt grip is tight with hands clasped h…

• Begin choking arm advancement with elbow walking: Start sliding the choking arm (the over-the-shoulder arm) from its position on the chest toward the …

• Defeat the two-on-one grip defense: The opponent will likely grab your choking wrist with both hands. Counter by using your free hand to…

• Clear the chin barrier and slide the forearm under: Once grip control is established on the wrist defense, work the blade of your wrist along the jawlin…

• Lock the figure-four choking configuration: Once the choking forearm is under the chin, immediately grab your own bicep with the choking hand wh…

• Apply the squeeze with proper body mechanics: Generate choking pressure by expanding your chest forward while pulling your elbows back and togethe…

• Adjust angle and maintain pressure until tap: If the initial squeeze does not produce a tap, micro-adjust by angling your body slightly to one sid…

Common Mistakes

• Placing the forearm across the trachea instead of positioning the blade of the wrist against the carotid arteries

  • Consequence: Creates a painful but ineffective air choke that damages the windpipe and causes unnecessary injury without producing efficient blood flow restriction to the brain
  • Correction: Position the blade of the wrist (radius bone) directly against one carotid artery while the bicep compresses the other. The crook of the elbow should be centered under the chin with no bone contact on the trachea.

• Rushing the choke by releasing all control to grab the neck in one explosive movement

  • Consequence: Gives the opponent a clear window to strip the grip, turn into guard, or escape the back position entirely, losing a dominant position for a low-percentage scramble
  • Correction: Advance the choking arm in small increments using elbow walking while maintaining the underhook for postural control. Never sacrifice positional control for a rushed submission attempt.

• Releasing the underhook arm before the figure-four is fully locked to grab behind the head prematurely

  • Consequence: Loses the postural control that prevents the opponent from turning, allowing them to rotate their body and escape to guard or turtle before the choke is completed
  • Correction: Keep the underhook arm engaged for postural control until the choking arm is fully under the chin. Only release the underhook to complete the figure-four lock when the choking position is secured.

Playing as Defender

→ Full Defender Guide

Key Principles

• Immediately establish two-on-one grip control on the choking arm wrist before it advances past the collarbone toward the neck

• Keep the chin tucked tight to the chest and elevate the shoulder on the choking arm side to create a physical barrier against forearm entry

• Never release control of the choking arm to fight hooks - the choke is the primary threat and hooks without a tight grip are far less dangerous

• Turn toward the underhook side when attempting escapes to disrupt the attacker’s structural alignment and create the most effective escape angle

• Maintain calm and controlled breathing to prevent panic, conserve energy, and make clear tactical decisions under pressure

• Address defensive priorities in sequence: control choking arm first, protect neck second, manage hooks third, then escape

Recognition Cues

• Opponent’s over-the-shoulder arm begins sliding from its position on your chest toward your neck and jawline in small incremental advances

• Opponent releases the harness grip lock to free the choking hand for advancement, creating a brief moment where their hands separate

• Increased forward pressure through the chest and a head position change as the opponent shifts weight to support the choking arm transition

• Opponent’s free hand begins stripping your grip on the choking arm wrist, peeling fingers or swimming over your forearm

• Opponent adjusts hook depth or body angle to optimize leverage for the arm advancement, often arching slightly or shifting hips

Escape Paths

• Control choking arm with two-on-one, turn toward underhook side, hip escape to create angle, strip hooks, and recover to closed guard facing the opponent

• Strip grips and hooks systematically, transition to turtle position by getting to all fours, then work to standing or guard recovery from turtle

Variations

Standard Figure-Four Finish: The classic RNC where the choking arm slides under the chin, the free hand grabs the bicep of the choking arm, and the hand of the choking arm cups behind the opponent’s head. Squeeze is generated by expanding the chest and pulling the elbows together. (When to use: Default finishing method when you can get the choking arm fully under the chin and lock the figure-four configuration without interference.)

Short Choke (No Figure-Four): When the figure-four cannot be locked, the choking arm goes under the chin and the free hand pushes the back of the opponent’s head forward into the choking forearm. Effective when the opponent is defending the lock hand from connecting to the bicep. (When to use: When the opponent successfully prevents the figure-four lock by trapping or blocking the support hand from reaching the choking arm’s bicep.)

Palm-to-Palm Power Squeeze: Both hands clasp together palm-to-palm with the choking forearm under the chin. The squeeze comes from pulling both hands toward the chest while expanding the ribcage. Less mechanically efficient than figure-four but faster to lock. (When to use: When speed of application matters more than mechanical perfection, particularly during scrambles or when the opponent is actively fighting the grip transition.)

From Which Positions?

• Harness
• Back Control
• Seat Belt Control Back

Related Submissions

• Rear Naked Choke
• Bow and Arrow Choke
• Arm Triangle
• Darce Choke

Additional Related Content

• Harness - Primary starting position providing seatbelt grip control
• Back Control - Parent position category with hooks fully established
• Body Triangle - Alternative lower body control that pairs with RNC attacks
• Gift Wrap - Transition target when choke defense exposes the arm
• Crucifix - Alternative control when opponent turns shoulder to defend
• Turtle - Common position before harness establishment via back take

Match Outcome

Successful execution of Rear Naked Choke from Harness leads to → Game Over

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