Nelson From Turtle

Species

ネルソン(Neruson)

Transliteration

Translation: Nelson (katakana loanword); cervical extension neck crank

Overview

The nelson neck crank from turtle is applied against a turtled opponent by the attacker threading a half-nelson or full-nelson grip behind the opponent's neck and cranking the head forward while maintaining top control over the shell. ^[1],[2] The turtle position makes the back of the neck accessible, allowing the attacker to slide the arms under the chin or behind the head and apply downward cranking force. ^[1] The attacker uses chest pressure on the back to anchor the opponent while the nelson grip levers the cervical spine into flexion. ^[1],[2]

Also known as

Turtle Nelson Crank^[1]Nelson from Turtle Ride^[2]

Used in

BJJ Judo Submission Grappling MMA Sambo

History & Origin

Nelson attacks from the turtle draw directly from amateur wrestling, where the half nelson is one of the most fundamental techniques for turning an opponent from the referee's position. ^[1],[2] In submission grappling, the wrestling nelson was adapted from a turning technique into a cranking submission, taking advantage of the turtled opponent's inability to use their hands for neck defense. ^[1] This turtle-to-nelson chain is one of the most intuitive wrestling-to-submission transitions for wrestlers entering grappling competition. ^[1],[2]

Effectiveness

Effective against turtled opponents — the Nelson leverage against the back of the neck combined with hip pressure creates powerful cervical manipulation ^[1]

Lineage

A classical wrestling turtle attack adapted to submission grappling; Nelson attacks from turtle are fundamental in catch wrestling, freestyle, and Greco-Roman wrestling ^[1]

Competition Record

Common control technique in wrestling-based MMA; occasionally produces submission finishes in catch wrestling and combat sambo events ^[1]

Images

No images yet for this technique.

Biomechanical Mechanism

Primary Action — Compression of the neck structures — restricts blood flow or airway depending on technique application

Joints Involved — Cervical spine, surrounding musculature, and vascular structures of the neck

Force Vector — Directed compression against the neck from the choking limb or body position

Finishing Mechanic — Sustained pressure causes either vascular occlusion (unconsciousness) or tracheal restriction (breathing difficulty)

Position & Entry

From back control with seatbelt — Establish hooks or body triangle, slide choking arm under the chin, connect hands and squeeze

From turtle top (back take) — Break down the turtle, insert hooks, secure seatbelt grip, slide to back control and apply the choke

From standing back clinch — Secure rear body lock, drag opponent to the mat while inserting hooks, transition to choking position

Videos

BJJ Giant

BJJ Turtle Soup 3 | 1/4 Quarter Nelson

Nelson From Turtle·BJJ Giant

We're just built differently, that's ok! I recently went to a new gyms first class and the first sub they were building …

welcomematstevescott

BELT & NELSON BREAKDOWN TURNOVER

Nelson From Turtle·welcomematstevescott

Here is an effective and simple breakdown/turnover that works at all levels of grappling. What we call the Belt & Nelson…

Five Points Jiu Jitsu

Breaking down the Turtle using the Power Half/half-Nelson

Nelson From Turtle·Five Points Jiu Jitsu

Using wrestling for jiu jitsu. The Power Half or half-Nelson is a very strong wrestling hold that is under utilized in j…

1 / 2

3 videos

What Instructors Say

The Nelson from turtle is a neck-crank technique applied when an opponent assumes a defensive turtle position (hands and knees with head down). Five Points Jiu Jitsu emphasizes using the power half-nelson to open the opponent's hips and create space for hook placement, establishing superior control by transitioning from initial hooks to a body trap with a tight upper-body connection rather than relying on squeezing alone. BJJ Giant describes the quarter-nelson variant, where the attacker places one hand at the base of the neck for control while threading the opposite arm under the same-side armpit, then presses the head downward and through to roll the opponent into side control—a technique effective precisely because it surprises opponents expecting rear-naked choke attacks. Welcome Mat Steve Scott presents the "belt and nelson" breakdown, combining a palm-down belt grip along the spine with an underhook of the shoulder, executed from a slight angle to prevent the opponent from spinning out, culminating in a secure chest-hold (munigatami) position that yields points under judo, freestyle, and sambo rulesets. All three instructors agree the technique exploits the turtle's inherent vulnerability and emphasize positional angles and body pressure over pure grip strength; the key distinction lies in their varying endpoint focus—submission choke versus positional control versus time-based scoring.

Synthesized from 3 instructors

Five Points Jiu Jitsu — Breaking down the Turtle using the Power Half/half-Nelson: Explains the power half-nelson's dual function in escaping and opening hips; emphasizes transitioning from hooks to body trap for superior control; describes proper gable grip mechanics using shoulder rotation and arm pulling rather than squeezing.
BJJ Giant — BJJ Turtle Soup 3 | 1/4 Quarter Nelson: Details quarter-nelson mechanics: hand placement at base of neck and underarm hook; clarifies that head pressure, not arm lifting, drives the turnover; notes the surprise factor against experienced grapplers unfamiliar with wrestling techniques.
welcomematstevescott — BELT & NELSON BREAKDOWN TURNOVER: Presents the belt-and-nelson combination with belt grip on spine and underhook; stresses the importance of angled body positioning to prevent escape; details the final munigatami chest-hold position and its point-scoring value across judo, freestyle, and sambo rulesets.

Learn This Technique

No instructional courses yet for this technique.

Ratings

Danger Rating

Risk of injury to the person this technique is applied to

Extreme9/10

Extension cranks force the head backward; risk of vertebral disc and ligament damage

Difficulty

Skill level needed to execute this technique reliably

Advanced

Competition Legality

Whether this technique is allowed under major competition rule sets

Illegal

— FIAS Sport Sambo — All chokes prohibited in Sport Sambo

FIAS International Sambo Competition RulesPDF

Legal

— IBJJF — Legal at all belt levels, gi and no-gi — chokes a...

IBJJF Rules Book v6.0, June 2024PDF

— shime-waza

IJF Sport and Organisation Rules 2025, Article 27PDF

— ADCC — Legal

ADCC Rules Update, April 2025PDF

— Unified MMA — Legal — choke submissions are among the mos...

Unified Rules of MMA, August 2025PDF

— FIAS Combat Sambo — Legal

FIAS Combat Sambo RulesPDF

Training Notes

✓The Nelson neck crank from turtle attacks the turtled opponent by threading the arm behind their head — the turtle's head-down posture makes the Nelson threading natural and the cervical flexion particularly effective (Paulson, Shoot Wrestling, 2007)

✓Against the turtle: approach from the side, thread one arm behind the opponent's head, and drive the chin toward the chest — the turtle's existing head-down posture means the neck is already partially flexed

✓The turtle Nelson is a fundamental turtle attack: when back takes and crucifix are defended, the Nelson provides a cervical-based submission option

✓Two variants from turtle: the standard half-Nelson (arm behind head, hand on neck) and the three-quarter Nelson (arm threaded deeper, gripping far shoulder)

✓The turtle's posture creates a Nelson paradox: the rounded posture protects the back but pre-flexes the neck — the Nelson exploits this pre-flexion by pushing it to the extreme

✓The Nelson from turtle combines positional breaking with submission: the Nelson motion turns the opponent from turtle to their side or back — the turn creates both a crank and a positional advancement

✓In wrestling, the Nelson from turtle is a primary turning method: the same technique that scores near-fall points in wrestling creates a cervical submission in grappling

Common Mistakes

!Approaching from directly behind — the side approach provides better arm access to the head; from behind, the head is protected by the turtle's tuck

!Not maintaining chest or hip pressure on the turtle — weight must stay on the opponent while the arm threads; lifting up allows them to stand or re-turtle

!Threading too slowly — the turtled opponent will protect the head if given time; thread quickly and decisively

!Not driving forward after threading — the Nelson requires forward hip pressure to create cervical flexion; threading without driving is just arm placement

!Using the full Nelson (both arms behind head) without control — the full Nelson is illegal in most wrestling and very dangerous in grappling; use the half or three-quarter

!Not following the opponent if they begin to turn — the Nelson turns them; follow the turn to maintain the position and continue the crank or advance to mount

!Applying explosive cervical force — turtle Nelson cranks are amplified by the pre-flexed position; progressive application is critical for safety

Related Techniques

Neck Crank — shares cervical spine manipulation mechanic Crossface — foundational control using pressure across the face Can Opener — similar neck flexion attack from a different position Crucifix Position — controlling position that enables face and neck attacks

Counter Techniques

Early Recognition — identify the submission attempt early and begin defence immediately Posture and Base — maintain strong posture and base to prevent submission setups Grip Fight — deny the attacker their preferred gripping configuration

Setup Chain

1Establish Position — achieve the controlling position needed for this submission

2Create the Threat — begin the submission setup to force a defensive reaction

3Secure the Hold — lock the submission grip with proper body mechanics

4Finish — apply increasing pressure until the opponent taps or the joint/choke takes effect

Sources & References

Primary Source

Japanese pro wrestling/catch wrestling standard terminology

1OtherJapanese Martial Arts Community Terminology

Japanese pro wrestling/catch wrestling standard terminology

2OtherJapanese Combat Sports Katakana Convention

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

3CitationJapanese pro wrestling/catch wrestling standard terminology

Japanese terminology sourced from Japanese pro wrestling/catch wrestling standard terminology

Community

Athletics

Requires

grip or squeeze strength, positional control

Favours

strong upper body for sustained compression

Key muscles

forearms, biceps, pectorals, core stabilisers

Sub-techniques

Three-Quarter Nelson Crank

Variety

The three-quarter nelson crank from turtle applies a nelson variant where the attacker controls approximately three-quarters of the neck-cranking pathway — more than a half nelson but less than a full nelson. [1] Against a turtled opponent, the attacker threads one arm deep behind the neck while the second arm controls the near shoulder or arm, creating an asymmetric nelson hold. [1,2] The three-quarter configuration generates rotational torque on the cervical spine while the turtle position limits the opponent's ability to roll or posture away. [2] This technique bridges the gap between wrestling control holds and submission-oriented neck cranks, serving dual purposes of positioning and submission threat. [2,3]

Explore

Frequently Asked Questions

What's the key positioning when applying a Nelson from turtle?

According to welcomematstevescott, you want to be slightly to an angle rather than straight ahead—position yourself to your left and to their right. This prevents them from spinning out and gives you control for the turnover.

How do I maintain control once I flip someone from turtle with a Nelson?

Keep holding the belt grip and use an underhook under their shoulder, then drive with your chest to flip them over into a chest hold (munigatami). Don't let go of the belt throughout the transition.

Should I go for the flip immediately or can I stay in pressure first?

Five Points Jiu Jitsu recommends that after taking the back, you get your hooks in, stay for a couple seconds to maintain control, and then switch to a body trap, as this is superior to rushing the flip.

What happens if my opponent blocks the Nelson flip?

According to BJJ Giant, the quarter Nelson alone won't flip someone if they actively resist it—you need proper positioning and grip control, but even if blocked, you can still advance to side control.

How does the Nelson From Turtle work?

The nelson neck crank from turtle is applied against a turtled opponent by the attacker threading a half-nelson or full-nelson grip behind the opponent's neck and cranking the head forward while maintaining top control over the shell. The turtle position makes the back of the neck accessible, allowing the attacker to slide the arms under the chin or behind the head and apply downward cranking force.

Where does the Nelson From Turtle come from?

Nelson attacks from the turtle draw directly from amateur wrestling, where the half nelson is one of the most fundamental techniques for turning an opponent from the referee's position. In submission grappling, the wrestling nelson was adapted from a turning technique into a cranking submission, taking advantage of the turtled opponent's inability to use their hands for neck defense.

Is the Nelson From Turtle legal in competition?

IBJJF: legal — Legal at all belt levels, gi and no-gi — chokes are the safest submission cat…; IJF: legal — Legal (shime-waza) — strangulation techniques are one of three permitted subm…; ADCC: legal — Legal; Unified MMA: legal — Legal — choke submissions are among the most common finishes in MMA; FIAS Sport Sambo: banned — All chokes prohibited in Sport Sambo; FIAS Combat Sambo: legal — Legal

How dangerous is the Nelson From Turtle?

Danger rating 9/10. Extension cranks force the head backward; risk of vertebral disc and ligament damage

How do I set up the Nelson From Turtle?

The standard setup chain: Establish Position → Create the Threat → Secure the Hold → Finish.

How do I defend against the Nelson From Turtle?

Standard counters include: Early Recognition — identify the submission attempt early and begin defence immediately / Posture and Base — maintain strong posture and base to prevent submission setups / Grip Fight — deny the attacker their preferred gripping configuration.

What are the variants of the Nelson From Turtle?

Common variants: Standard grip variation (primary hand configuration for maximum choking pressure); Gi variation (uses the lapel or collar as an anchor for additional fric…); No-gi variation (adapted grip and positioning for submission grappling wit…); Transition finish (applied during a positional change to catch the opponent …).

How effective is the Nelson From Turtle in competition?

Common control technique in wrestling-based MMA; occasionally produces submission finishes in catch wrestling and combat sambo events

What are common mistakes when doing the Nelson From Turtle?

Top errors to watch for: Approaching from directly behind — the side approach provides better arm access to the head; from behind, the head is… / Not maintaining chest or hip pressure on the turtle — weight must stay on the opponent while the arm threads; lifting… / Threading too slowly — the turtled opponent will protect the head if given time; thread quickly and decisively / Not driving forward after threading — the Nelson requires forward hip pressure to create cervical flexion; threading ….

What are other names for the Nelson From Turtle?

The Nelson From Turtle is also known as Neruson, Turtle Nelson Crank, Nelson from Turtle Ride.

neruson submission choke and strangle lock neck crank choke cervical extension crank nelson neck crank nelson from turtle turtle nelson crank nelson from turtle ride