RNC with One arm + how to win the hand fighting battle
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Neck Crush FinishΒ·Ramsey Dewey
How to do a rear naked choke with one arm, and how to shut down your opponentβs pesky attempts to stop you
Translation: neck crush finish
Range & classification
Category
Strike & defenceLocksClose rangeFighting multiple people
Distance
CloseMiddleLong
Body target
Upper bodyMiddle bodyLower body
Overview
The Neck Crush Finish is a one-arm rear naked choke variation where the attacker uses a single arm wrapped behind the opponent's head to create a crushing compression on the neck β squeezing the neck between the forearm and the bicep without the standard two-arm figure-four configuration. [1],[2]
Neck CrushCompression Finish
History & Origin
Effectiveness
Lineage
Developed within the BJJ/grappling submission system. [1]
Competition Record
Used in BJJ, MMA, and submission grappling competition. [1]
Images
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Biomechanical Mechanism
Primary Action β Applying this specific choking or cranking configuration to the opponent's neck or spine
Joints Involved β Neck (cervical spine β the target of all chokes/cranks in this family), arms (the choking limb creates the compression surface), shoulders (positioning determines the choking angle)
Force Vector β Bilateral compression (chokes compress from two sides) or rotational/extension (cranks apply torsion or hyperextension)
Submission Mechanic β The specific grip, arm positioning, and body alignment create the unique compression geometry of this variation
Position & Entry
From back control β Establish back control, then transition to this specific choke/crank variation
From front headlock β Secure the front headlock, then apply this specific choke configuration
From the parent position β Enter through the position described in the parent genus/species
Variants
This is a specific variation β see parent genus/species for alternative variations
Videos
1 video
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Ratings
Risk of injury to the person this technique is applied to
8
Very High8/10
Chokes and neck cranks carry significant risk; blood chokes cause unconsciousness in 6-10 seconds; neck cranks can cause cervical spine damage; always tap early
Skill level needed to execute this technique reliably
Intermediate
Whether this technique is allowed under major competition rule sets
Illegal
β FIAS Sport Sambo β All chokes prohibited in Sport Sambo
FIAS International Sambo Competition RulesPDFLegal
β IBJJF β Legal at all belt levels, gi and no-gi β chokes a...
IBJJF Rules Book v6.0, June 2024PDFβ shime-waza
IJF Sport and Organisation Rules 2025, Article 27PDFβ ADCC β Legal
ADCC Rules Update, April 2025PDFβ Unified MMA β Legal β choke submissions are among the mos...
Unified Rules of MMA, August 2025PDFβ FIAS Combat Sambo β Legal
FIAS Combat Sambo RulesPDFTraining Notes
βApply slowly in training β chokes and cranks can cause injury if applied explosively
βTap early when caught β blood chokes cause unconsciousness rapidly; neck cranks can damage the cervical spine
βDrill the specific grip and positioning until automatic
βChain with alternative choke variations when this one is defended
Common Mistakes
!Applying too fast β gradual application is safer and often more effective
!Wrong grip positioning β the specific grip variation defines this technique; incorrect grip = different technique
!Not controlling posture before applying
!Holding after the tap β release immediately
Related Techniques
Counter Techniques
Setup Chain
1Establish Control Position
2Secure the Specific Grip
3Position the Choking Surface
4Apply Compression
5Finish
Sources & References
Primary Source
Jiu-Jitsu University (Saulo Ribeiro, 2008)
1BookJiu-Jitsu University (Ribeiro, 2008)
Description sources β [1] Choking/cranking technique curriculum [2] Competition analysis
2BookMastering Jujitsu (Gracie & Danaher, 2003)
3OtherJapanese Combat Sports Katakana Convention
Standard katakana transliteration of Western martial arts terminology (ε€ζ₯θͺ) β used in Japanese MMA, boxing, and BJJ communities
4CitationJiu-Jitsu University (Ribeiro, 2008)
Description sources β [1] Choking/cranking technique curriculum [2] Competition analysis
5CitationMastering Jujitsu (Gracie & Danaher, 2003)
Community
Athletics
Requires
grip strength, arm positioning precision, back control ability
Key muscles
forearms (squeeze), biceps (compression), shoulders (positioning)
Frequently Asked Questions
Why should I hide one of my hands when applying a neck crush finish?
Ramsey Dewey explains that you hide the bottom hand because your opponent will instinctively try to pry off the hand they can see on top first. By keeping one hand hidden, if they grab and strip your top hand, your concealed hand is still in position to finish the choke.
How do I stop my opponent from peeling my fingers off during a neck crush?
According to Ramsey Dewey, if your opponent grabs your top hand with their thumb pointing down, you can flip your hand up to peel their fingers off and maintain control of the choke.
How does the Neck Crush Finish work?
The Neck Crush Finish is a one-arm rear naked choke variation where the attacker uses a single arm wrapped behind the opponent's head to create a crushing compression on the neck β squeezing the neck between the forearm and the bicep without the standard two-arm figure-four configuration.
Where does the Neck Crush Finish come from?
This variation developed within the broader choking/cranking system of its parent technique family.
Is the Neck Crush Finish legal in competition?
IBJJF: legal β Legal at all belt levels, gi and no-gi β chokes are the safest submission catβ¦; IJF: legal β Legal (shime-waza) β strangulation techniques are one of three permitted submβ¦; ADCC: legal β Legal; Unified MMA: legal β Legal β choke submissions are among the most common finishes in MMA; FIAS Sport Sambo: banned β All chokes prohibited in Sport Sambo; FIAS Combat Sambo: legal β Legal
How dangerous is the Neck Crush Finish?
Danger rating 8/10. High β chokes and neck cranks carry significant risk; blood chokes cause unconsciousness in 6-10 seconds; neck cranks can cause cervical spine damage; always tap early
How do I set up the Neck Crush Finish?
The standard setup chain: Establish Control Position β Secure the Specific Grip β Position the Choking Surface β Apply Compression β Finish.
How do I defend against the Neck Crush Finish?
Standard counters include: Hand fighting β stripping the grip before the choke is set / Chin tuck β protecting the throat / Posture β creating distance to prevent the choke / Turning β turning to face the attacker.
What are the variants of the Neck Crush Finish?
Common variants: This is a specific variation (see parent genus/species for alternative variations).
How effective is the Neck Crush Finish in competition?
Used in BJJ, MMA, and submission grappling competition.
What are common mistakes when doing the Neck Crush Finish?
Top errors to watch for: Applying too fast β gradual application is safer and often more effective / Wrong grip positioning β the specific grip variation defines this technique; incorrect grip = different technique / Not controlling posture before applying / Holding after the tap β release immediately.
What are other names for the Neck Crush Finish?
The Neck Crush Finish is also known as Nekku Kurasshu Finisshu, Neck Crush, Compression Finish.