Sok Klap

SubFamily

ศอกกลับ（ソーク・クラップ）(Sōku Kurappu)

Transliteration

Translation: spinning elbow

Overview

Sok Klap is the Thai name for the spinning elbow, a technique where the fighter pivots on the lead foot through a full 180-degree rotation to deliver a powerful back elbow to the opponent's head or jaw. ^[1] The technique generates extraordinary force through the combination of rotational momentum and the dense striking surface of the elbow tip, making it one of the most fight-ending strikes in Muay Thai. ^[1],[2] Sok Klap requires the striker to disguise the initiation of the spin, often setting it up with a jab, cross, or clinch break to mask the initial turn. ^[2],[3]

Also known as

Spinning Back Elbow^[1]Turning Elbow^[2]Rotational Elbow^[3]

Used in

Muay Thai MMA Lethwei

History & Origin

Sok Klap is classified as an advanced technique in traditional Muay Thai and is part of the historical sok repertoire preserved in Thai training methodology. ^[1] The spinning elbow has been used in Thai ring competition for generations, though its high-risk nature means it is typically reserved for experienced fighters. ^[2],[3]

Effectiveness

Sok klap (spinning elbow) rotates the body to deliver a devastating spinning elbow strike. ^[1]

Lineage

A traditional Muay Thai spinning technique. ^[1]

Competition Record

The spinning elbow has produced spectacular knockouts in Muay Thai and MMA. ^[1]

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Biomechanical Mechanism

Primary Action — Ballistic extension of the arm — kinetic chain transfers force from the ground through the hips to the fist

Joints Involved — Shoulder (flexion/rotation), elbow (rapid extension), wrist (stabilised on impact), hips (rotation)

Force Vector — Linear (jab, cross) or circular (hook, overhand) depending on the punch type

Kinetic Chain — Ground reaction force → hip rotation → torso rotation → shoulder extension → fist impact — each link amplifies velocity

Position & Entry

From orthodox stance — Extend the lead hand straight toward the target, snap back to guard, keep rear hand protecting the chin

From southpaw stance — Same mechanics from the opposite side — lead left hand becomes a right jab

As range finder — Use the jab at long range to measure distance before committing to power shots

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Ratings

Danger Rating

Risk of injury to the person this technique is applied to

Very High8/10

Spinning generates rotational force; devastating KO power

Difficulty

Skill level needed to execute this technique reliably

Advanced

Competition Legality

Whether this technique is allowed under major competition rule sets

Illegal

WBC/Boxing — All elbow strikes prohibited in boxing {src— WBC Rules of Boxing}

— WKF — Elbow strikes not a legal technique in sport karate

WKF Competition Rules 2024PDF

Kyokushin — Elbow strikes prohibited {src— IKO Kyokushin Tournament Rules}

— WT — Prohibited

WT Competition Rules 2024PDF

— ITF — Prohibited

ITF Competition RulesPDF

— WAKO — Prohibited in all kickboxing formats

WAKO Competition RulesPDF

K-1/GLORY — Prohibited — key difference from Muay Thai {src— K-1/GLORY Kickboxing Rules}

Legal

— Unified MMA — Legal — all elbow strikes permitted

Unified Rules of MMA, August 2025PDF

— art of eight limbs

IFMA Muay Thai RulesPDF

Training Notes

✓Sok klap is the Muay Thai spinning elbow — a full-rotation elbow strike that generates devastating rotational force

✓Initiate the spin by pivoting on the lead foot and rotating the hips in the direction of the rear arm

✓The rear elbow swings through the spin at head height, contacting the opponent's jaw, temple, or orbital area

✓Spot the target over the lead shoulder as you begin the spin — never spin blind

✓The sok klap is used as a surprise counter or finisher after establishing a jab-cross rhythm

✓Keep the spinning arm tight at 90 degrees throughout the rotation

✓In professional Muay Thai and MMA, the sok klap has produced numerous spectacular knockouts

Common Mistakes

!Not spotting the target and spinning blindly — accuracy is essential for this high-commitment technique

!Opening the arm during the spin so the forearm connects instead of the elbow point

!Spinning at the wrong distance — too far and you miss, too close and you jam the rotation

!Telegraphing by dropping the lead hand before spinning

!Not committing to the full rotation and stopping midway with your back exposed

!Over-using the sok klap so the opponent times the spin and counters during the rotation

!Not recovering to stance if the elbow misses — drill spinning back to guard

Related Techniques

Jab — range-finding strike that sets up this power technique Combination — multi-strike sequence incorporating this technique for higher effectiveness

Counter Techniques

Block — absorb the strike with a protective guard position Evasion — move the target out of the strike's path Counter-Attack — time an offensive response during the recovery phase of the strike

Setup Chain

1Assume Fighting Stance — begin from a balanced position with guard up

2Generate Power — use hip rotation and weight transfer for maximum force

3Execute Strike — deliver the technique to the target with correct form

4Recover to Guard — return immediately to defensive position

Sources & References

Primary Source

Muay Thai: The Art of Fighting (Yod Ruerngsa, Khun Kao Charuad & James Cartmell, 2002)

1BookTaekwondo (Choi, 1965)

Alias sources — [1] Muay Thai Unleashed (Delp, 2006) [2] Muay Thai: The Art of Fighting (Kraitus & Kraitus, 1988) [3] WBC Muay Thai Rules (2014)

2BookMuay Thai: The Art of Fighting (Kraitus, 2002)

Effectiveness sources — [1] Muay Thai: The Art of Fighting (Kraitus & Rennehan, 2002)

3OtherJapanese Combat Sports Katakana Convention

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

4CitationTaekwondo (Choi, 1965)

Alias sources — [1] Muay Thai Unleashed (Delp, 2006) [2] Muay Thai: The Art of Fighting (Kraitus & Kraitus, 1988) [3] WBC Muay Thai Rules (2014)

5CitationMuay Thai: The Art of Fighting (Kraitus, 2002)

Effectiveness sources — [1] Muay Thai: The Art of Fighting (Kraitus & Rennehan, 2002)

Community

Athletics

Requires

hand speed, shoulder endurance, quick retraction

Favours

longer reach for keeping opponents at distance

Key muscles

anterior deltoid, triceps, serratus anterior, core

Sub-techniques

Standard Sok Klap

Genus

The Standard Sok Klap is the fundamental execution of the spinning back elbow, where the fighter initiates a sharp pivot on the lead foot, rotates the torso 180 degrees, and drives the rear elbow into the opponent's temple, jaw, or cheek. [1] The striking arm remains tightly bent throughout the rotation, and the eyes locate the target as early as possible during the spin to ensure accuracy. [1,2] The standard Sok Klap is most effective at medium-close range, where there is enough space to complete the rotation but close enough to connect with the relatively short elbow weapon. [2,3]

Explore

Frequently Asked Questions

How does the Sok Klap work?

Where does the Sok Klap come from?

Sok Klap is classified as an advanced technique in traditional Muay Thai and is part of the historical sok repertoire preserved in Thai training methodology. The spinning elbow has been used in Thai ring competition for generations, though its high-risk nature means it is typically reserved for experienced fighters.

Is the Sok Klap legal in competition?

Unified MMA: legal — Legal — all elbow strikes permitted; WBC/Boxing: banned — All elbow strikes prohibited in boxing; WKF: banned — Elbow strikes not a legal technique in sport karate; Kyokushin: banned — Elbow strikes prohibited; WT: banned — Prohibited; ITF: banned — Prohibited; WAKO: banned — Prohibited in all kickboxing formats; K: banned — 1/GLORY — Prohibited — key difference from Muay Thai; IFMA: legal — Legal — elbows are a core Muay Thai weapon (art of eight limbs)

How dangerous is the Sok Klap?

Danger rating 8/10. Very High — spinning generates rotational force; devastating KO power

How do I set up the Sok Klap?

The standard setup chain: Assume Fighting Stance → Generate Power → Execute Strike → Recover to Guard.

How do I defend against the Sok Klap?

Standard counters include: Block — absorb the strike with a protective guard position / Evasion — move the target out of the strike's path / Counter-Attack — time an offensive response during the recovery phase of the strike.

What are the variants of the Sok Klap?

Common variants: Standard jab (quick, straight lead-hand punch from orthodox stance); Power jab (stepping into the jab with more body weight for increased…); Double jab (two rapid jabs to set up a follow-up power shot); Body jab (targeting the midsection instead of the head).

How effective is the Sok Klap in competition?

The spinning elbow has produced spectacular knockouts in Muay Thai and MMA.

What are common mistakes when doing the Sok Klap?

Top errors to watch for: Not spotting the target and spinning blindly — accuracy is essential for this high-commitment technique / Opening the arm during the spin so the forearm connects instead of the elbow point / Spinning at the wrong distance — too far and you miss, too close and you jam the rotation / Telegraphing by dropping the lead hand before spinning.

What are other names for the Sok Klap?

The Sok Klap is also known as Sōku Kurappu, Spinning Back Elbow, Turning Elbow, Rotational Elbow.

sok klap s ku kurappu strike elbow strike spinning elbow muay thai mma lethwei spinning back elbow turning elbow rotational elbow