Standard Ko Soto Gari

Genus

小外刈り(Ko Soto Gari)

Traditional

Translation: standard minor outer reap

Overview

The Standard Ko Soto Gari executes the fundamental minor outer reap where the attacker drives the opponent's weight backward over their heels using a push-pull hand action, then reaps the loaded heel with the sole of the foot in a backward-sweeping motion. [1] The attacker steps to the outside of the opponent's foot, places the sweeping foot behind the opponent's ankle, and uses a sharp backward reap while simultaneously pushing the opponent's upper body in the opposite direction. [1],[2] The combination of upper body drive and heel reap creates a rotational fall backward over the reaped foot. [2] The technique is effective from collar tie, lapel grip, or clinch positions. [2],[3]

Also known as
Standard Minor Outer Reap[1]Ko Soto Gari TakedownJP[2]Outside Heel Trip[3]

History & Origin

Standard ko soto gari has been taught in judo dojos worldwide since the art's founding and is one of the most commonly used foot techniques in judo competition. [1] Its effectiveness in close quarters made it a valuable addition to MMA striking clinch exchanges. [2],[3]

Effectiveness

Ko soto gari is effective as both a primary attack and a combination technique, often used to exploit lateral weight shifts. [1] The minor outer reap targets the opponent's heel from behind, making it difficult to defend when properly timed with hand pulling actions. [1] The technique is particularly effective in close-range clinch exchanges where the short reaping arc can be executed quickly. [2]

Lineage

Ko soto gari is part of the Kodokan Gokyo no Waza, classified in the Dai Nikyo (second group) of judo throws established by Jigoro Kano. [1] It is a standard technique in judo curricula worldwide and has been adapted into wrestling and MMA as a clinch-range trip. [2]

Competition Record

The standard ko soto gari is a regular scoring technique in IJF judo competition. [1]

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Biomechanical Mechanism

Primary ActionPenetrating step and level change to attack the opponent's legs — disrupting their base of support
Joints InvolvedAttacker's knees and hips (level change), opponent's knee or ankle (controlled point)
Force VectorForward and downward — closing distance and driving through the opponent's lower body
Takedown MechanicRemoving one or both legs from the opponent's base forces them to fall or be driven to the mat

Position & Entry

From collar tie and sleeve controlStep outside, reap the opponent's leg from the outside while driving them backward with upper body pressure
From clinch (high collar tie)Control the head, step to the outside of the lead leg and sweep it while pushing the opponent over

Variants

Standard tripblocking or sweeping the support leg while driving the upper body
Combination tripchaining an inside trip with an outside trip when the opponent adjusts
Counter tripusing the trip as a counter when the opponent attacks
Clinch tripexecuting the trip from a tight clinch position

Videos

Kosoto gari in depth

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Standard Ko Soto Gari·Shintaro Higashi·Added by Admin

Kosoto gari https://www.instagram.com/judoshintaronyc/

1 video

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Ratings

Danger Rating

Risk of injury to the person this technique is applied to

4
Moderate4/10

Timing-based sweep; lower force than trips

Difficulty

Skill level needed to execute this technique reliably

Advanced
Competition Legality

Whether this technique is allowed under major competition rule sets

Restricted
Legal
Unified MMA — Legal takedown technique
Unified Rules of MMA, August 2025PDF
ADCC — Legal, scored 2-4 points in second half of match
ADCC Rules Update, April 2025PDF
FIAS Sport Sambo — Legal — all takedowns permitted
FIAS International Sambo Competition RulesPDF
FIAS Combat Sambo — Legal
FIAS Combat Sambo RulesPDF

Training Notes

From close range, push the opponent's upper body backward with your chest and hands to load their rear heel
Place the sole of your foot behind their loaded heel and reap backward while continuing to drive forward
Your body drives through the space the opponent occupied — follow the reap with your full weight
Keep your hands gripping firmly and driving their upper body in the reap direction
The reap is a sweeping arc, not a straight pull — think of wiping the foot off the mat backward
Land in a dominant position by continuing to drive forward as they fall

Common Mistakes

!Not closing the distance first — ko soto gari is a close-range technique
!Reaping straight back instead of in a sweeping arc — the arc generates more force
!Leaning away from the opponent while reaping, which reduces your driving power
!Reaping the wrong foot (the unloaded one) — always reap the foot bearing weight
!Not following through with body weight over the reap, so the opponent catches themselves
!Hands and reap moving in different directions — everything must coordinate backward

Related Techniques

Counter Techniques

Setup Chain

1Establish Contactuse grip, tie, or clinch to control the opponent
2Create Off-Balanceuse push-pull action to disrupt the opponent's base
3Execute the Takedownapply the specific takedown mechanic with commitment
4Follow to Groundmaintain control as the opponent goes down to secure position

Sources & References

Primary Source

Kodokan Judo — Official Nage-waza Classification

1BookKodokan Judo — Official Nage-waza Classification

Traditional Judo throwing/takedown terminology (Kodokan Institute)

Official Kodokan ground technique classification system

Standard Japanese martial arts terminology (kanji/hiragana)

4OtherJapanese Martial Arts Standard Terminology (武道用語)

Established Japanese martial arts naming convention — native Japanese term (和語/漢語)

5CitationKodokan Judo — Official Nage-waza Classification

Traditional Judo throwing/takedown terminology (Kodokan Institute)

Community

Athletics

Requires

timing, balance, upper body control for push-pull

Favours

good coordination and sense of opponent's weight distribution

Key muscles

core stabilisers, hip adductors/abductors, calves

Frequently Asked Questions

What's the difference between Ko Soto Gari and Ko Soto Harai?

Ko Soto Gari involves a sweeping motion, while Ko Soto Harai requires you to open up and physically pull your opponent from one position to another. According to Shintaro Higashi, both are common techniques, and top-level coaches often teach one before the other depending on your grip situation.

How do I prevent my opponent from turning during Ko Soto Gari?

You need to pin your opponent's hips and pull your shoulders toward you so he cannot turn. Shintaro Higashi emphasizes crowding him with your hips, keeping your head into his lap, and maintaining a dominant position—if you just reach without controlling his hips, he will turn onto his back.

How does the Standard Ko Soto Gari work?

The Standard Ko Soto Gari executes the fundamental minor outer reap where the attacker drives the opponent's weight backward over their heels using a push-pull hand action, then reaps the loaded heel with the sole of the foot in a backward-sweeping motion. The attacker steps to the outside of the opponent's foot, places the sweeping foot behind the opponent's ankle, and uses a sharp backward reap while simultaneously pushing the opponent's upper body in the opposite direction.

Where does the Standard Ko Soto Gari come from?

Standard ko soto gari has been taught in judo dojos worldwide since the art's founding and is one of the most commonly used foot techniques in judo competition. Its effectiveness in close quarters made it a valuable addition to MMA striking clinch exchanges.

Is the Standard Ko Soto Gari legal in competition?

IJF: legal — Legal (ashi-waza) — trips executed without grabbing opponent's legs are permi…; IBJJF: legal — Legal at all belt levels, scored as takedown (2 points); UWW: restricted — Legal in freestyle, restricted in Greco-Roman (leg-to-leg contact prohibited); Unified MMA: legal — Legal takedown technique; ADCC: legal — Legal, scored 2-4 points in second half of match; FIAS Sport Sambo: legal — Legal — all takedowns permitted; FIAS Combat Sambo: legal — Legal; NCAA Folkstyle: legal — Legal, scored as takedown (2 points)

How dangerous is the Standard Ko Soto Gari?

Danger rating 4/10. Moderate — timing-based sweep; lower force than trips

How do I set up the Standard Ko Soto Gari?

The standard setup chain: Establish Contact → Create Off-Balance → Execute the Takedown → Follow to Ground.

How do I defend against the Standard Ko Soto Gari?

Standard counters include: Sprawl — drop hips back and drive weight down to stuff the takedown attempt / Underhook — establish inside position to control distance and prevent the takedown entry / Post and Circle — post on the attacker's head and circle away to break their angle / Level Change Defence — recognize the shot early and react with appropriate hip defence.

What are the variants of the Standard Ko Soto Gari?

Common variants: Standard trip (blocking or sweeping the support leg while driving the up…); Combination trip (chaining an inside trip with an outside trip when the opp…); Counter trip (using the trip as a counter when the opponent attacks); Clinch trip (executing the trip from a tight clinch position).

How effective is the Standard Ko Soto Gari in competition?

The standard ko soto gari is a regular scoring technique in IJF judo competition.

What are common mistakes when doing the Standard Ko Soto Gari?

Top errors to watch for: Not closing the distance first — ko soto gari is a close-range technique / Reaping straight back instead of in a sweeping arc — the arc generates more force / Leaning away from the opponent while reaping, which reduces your driving power / Reaping the wrong foot (the unloaded one) — always reap the foot bearing weight.

What are other names for the Standard Ko Soto Gari?

The Standard Ko Soto Gari is also known as Ko Soto Gari, Standard Minor Outer Reap, Ko Soto Gari Takedown, Outside Heel Trip.