Side Body Lock

SubFamily

サイドボディロック(Saido Bodi Rokku)

Transliteration

Translation: side body lock

Overview

The Side Body Lock subfamily covers positions where the attacker locks the grip around the opponent's torso from a lateral position, with the attacker's hip against the opponent's hip. [1] The side body lock creates a unique mechanical dynamic where the attacker can use their hip as a fulcrum for rotational throws and takedowns, leveraging the lateral angle to topple the opponent sideways. [1],[2] Side body lock positions commonly arise during transitions when front or rear body locks are partially defended and the fighters end up in a lateral configuration. [2],[3]

Also known as
Side Bear Hug Lock[1]Lateral Body Lock[2]Yoko-KumiJP[3]

History & Origin

Side body lock positions have been part of wrestling systems as transitional clinch positions that occur naturally during body lock scrambles. [1] The position gained recognition as a distinct clinch category as coaches identified reliable offensive techniques available from the lateral angle. [2],[3]

Effectiveness

The side body lock provides an angular clinch position that enables hip throws, trips, and lateral takedowns. [1]

Lineage

Side body lock is used across wrestling, judo, and MMA as a transitional clinch position. [1]

Competition Record

The side body lock is used in Greco-Roman and freestyle wrestling to attack from an angular position, setting up lateral trips and lateral drop throws in competition. [1]

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Biomechanical Mechanism

Primary ActionEstablishing a controlling connection with the opponent at close range
Joints InvolvedUpper body contact points — head, arms, and torso used for control and balance disruption
Force VectorVaries by clinch type — downward (collar tie), lateral (arm drags), or forward (chest pressure)
Control MechanicInside position and head control are the dominant factors in clinch superiority

Position & Entry

From clinch rangeSwim inside past the opponent's arms, lock hands around their torso in a body lock (gable grip or clasp)
From underhook battleWin double underhooks, step in and lock hands around the body

Videos

The Body Lock Grip

0
Side Body Lock·Absolute MMA St Kilda - Melbourne

The most common error I see in people using the body lock is incorrect grip placement. This video gives a rationale for

1 video

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Ratings

Danger Rating

Risk of injury to the person this technique is applied to

4
Moderate4/10

Body clinch positions enable throws and takedowns; rib compression risk

Difficulty

Skill level needed to execute this technique reliably

Intermediate
Competition Legality

Whether this technique is allowed under major competition rule sets

Restricted
WBC/Boxing — Holding is technically a foul — referee breaks clinch, excessive holding results in point deduction {srcWBC Rules of Boxing}
K-1/GLORY — One attack from clinch allowed, then referee breaks {srcK-1/GLORY Kickboxing Rules}
WAKO — Clinch generally broken by referee — limited or no...
WAKO Competition RulesPDF
Legal
Unified MMA — Legal — clinching is integral to MMA
Unified Rules of MMA, August 2025PDF
IBJJF — Legal — standing grip fighting and clinch work pe...
IBJJF Rules Book v6.0, June 2024PDF
IFMA — Legal — the clinch is a core element of Muay Thai,...
IFMA Muay Thai RulesPDF
UWW — Legal — clinch is fundamental to wrestling, the pri...
UWW International Wrestling Rules, January 2026PDF

Training Notes

The side body lock wraps the opponent's torso from a perpendicular angle — chest to the opponent's side
This position offers hip throw entries and lateral throws — you're already at a 90° angle, which is ideal for rotational throws
The side body lock is commonly achieved from a duck under or arm drag that takes you to the opponent's side
Lock hands around the waist and press your near hip into the opponent's hip — this hip contact is your throwing fulcrum
In MMA, the side body lock leads to hip tosses that are difficult to defend because the opponent can't square up in time
Chain: side body lock to hip toss, if blocked rotate to rear body lock, if that's blocked transition to a trip
The side body lock is particularly effective against taller opponents — your lower centre of gravity from the side creates excellent leverage

Common Mistakes

!Not pressing your hip into the opponent's hip — without hip contact, you have no throwing fulcrum
!Wrapping too loosely — the lock must be tight to prevent the opponent from turning to face you
!Not attacking immediately — the side position is transitional; the opponent will try to face you or turn away
!Standing too upright at the side — bend your knees and get your hips below theirs
!Allowing the opponent to pummel an arm inside the lock — keep the wrap tight against their body
!Not following through on throws — side body lock throws require full commitment
!Staying at the side without transitioning — if you can't throw, circle to the rear body lock

Related Techniques

Counter Techniques

Setup Chain

1Close Distancebridge the gap using footwork, strikes, or a level change
2Secure Both Armswrap both arms around the opponent's torso
3Clasp Handslock hands together behind the opponent's back
4Hip Drivepress hips against the opponent to maximize control pressure

Sources & References

Primary Source

Freestyle Wrestling: A Complete Guide for Coaches and Wrestlers (Petrov, 1977)

1BookGreco-Roman Wrestling (Petrov, 1985)

Alias sources — [1] Wrestling Physical Conditioning Encyclopedia (Welker, 2010) [2] Clinch Fighting for MMA (Couture, 2011) [3] Kodokan Judo (Kano, 1986)

2BookFreestyle Wrestling (Petrov, 1977)

Effectiveness sources — [1] Wrestling Physical Conditioning Encyclopedia (Petrov, 1977)

3OtherJapanese Combat Sports Katakana Convention

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

4CitationGreco-Roman Wrestling (Petrov, 1985)

Alias sources — [1] Wrestling Physical Conditioning Encyclopedia (Welker, 2010) [2] Clinch Fighting for MMA (Couture, 2011) [3] Kodokan Judo (Kano, 1986)

5CitationFreestyle Wrestling (Petrov, 1977)

Effectiveness sources — [1] Wrestling Physical Conditioning Encyclopedia (Petrov, 1977)

Community

Athletics

Requires

arm length to wrap the torso, squeeze strength, hip drive

Favours

long arms and strong grip, powerful lower back

Key muscles

biceps, pectorals, forearms, erector spinae, glutes

Sub-techniques

Frequently Asked Questions

How tight should I keep my opponent's hips in a side body lock?

You want to pull the hips tight towards you to maintain control and prevent them from having too much space, which would make it harder to pass their knee line and weaken your grip pressure. According to Absolute MMA St Kilda, you need to ensure you're past the waistline but not positioned too high.

Where should my hands be positioned in a side body lock grip?

Use an S-grip with your palm facing up on the hand closest to the leg, and position your tricep and armpit as high as possible on the leg so you can apply weight through your forearm and body rather than your hands. Absolute MMA St Kilda emphasizes that the deeper your hand goes, the more pressure you can apply to pull the knee away from the chest.

Why is the body lock grip effective for passing guard in no-gi grappling?

The body lock connects your hands to your opponent in a way that sticks you together and makes it much harder for them to create space or escape with techniques like underhooks or cross faces, making it one of the most effective methods for passing the guard.

How does the Side Body Lock work?

The Side Body Lock subfamily covers positions where the attacker locks the grip around the opponent's torso from a lateral position, with the attacker's hip against the opponent's hip. The side body lock creates a unique mechanical dynamic where the attacker can use their hip as a fulcrum for rotational throws and takedowns, leveraging the lateral angle to topple the opponent sideways.

Where does the Side Body Lock come from?

Side body lock positions have been part of wrestling systems as transitional clinch positions that occur naturally during body lock scrambles. The position gained recognition as a distinct clinch category as coaches identified reliable offensive techniques available from the lateral angle.

Is the Side Body Lock legal in competition?

Unified MMA: legal — Legal — clinching is integral to MMA; IJF: legal — Legal — kumi-kata (grip fighting) is fundamental to judo; IBJJF: legal — Legal — standing grip fighting and clinch work permitted; IFMA: legal — Legal — the clinch is a core element of Muay Thai, clinch dominance is highly…; WBC/Boxing: restricted — Holding is technically a foul — referee breaks clinch, excessive holding resu…; K: restricted — 1/GLORY — One attack from clinch allowed, then referee breaks; WAKO: restricted — Clinch generally broken by referee — limited or no clinch fighting in most fo…; UWW: legal — Legal — clinch is fundamental to wrestling, the primary position in Greco-Roman

How dangerous is the Side Body Lock?

Danger rating 4/10. Moderate — body clinch positions enable throws and takedowns; rib compression risk

How do I set up the Side Body Lock?

The standard setup chain: Close Distance → Secure Both Arms → Clasp Hands → Hip Drive.

How do I defend against the Side Body Lock?

Standard counters include: Pummeling — fight for inside position by swimming arms under opponent's grips / Frame and Push — create distance using forearm frames against the chest or neck / Grip Break — systematically strip the opponent's controlling grips / Posture Up — straighten the spine and drive the hips forward to break clinch control.

What are the variants of the Side Body Lock?

Common variants: Front body lock (locked hands around the torso face-to-face); Rear body lock (hands locked around the torso from behind); Side body lock (angled body lock for trips and throws); Over-arms body lock (locking over both arms to pin the opponent's arms to thei…).

How effective is the Side Body Lock in competition?

The side body lock is used in Greco-Roman and freestyle wrestling to attack from an angular position, setting up lateral trips and lateral drop throws in competition.

What are common mistakes when doing the Side Body Lock?

Top errors to watch for: Not pressing your hip into the opponent's hip — without hip contact, you have no throwing fulcrum / Wrapping too loosely — the lock must be tight to prevent the opponent from turning to face you / Not attacking immediately — the side position is transitional; the opponent will try to face you or turn away / Standing too upright at the side — bend your knees and get your hips below theirs.

What are other names for the Side Body Lock?

The Side Body Lock is also known as Saido Bodi Rokku, Side Bear Hug Lock, Lateral Body Lock, Yoko-Kumi.