O SOTO GARI (Judo Drills at Home)
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O Soto Gari·IronsideMartialArts
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O Soto Gari
SubFamily大外刈り(O Soto Gari)
TraditionalTranslation: major outer reap
Overview
O Soto Gari (major outer reap) is one of judo's most fundamental and powerful throws, in which the thrower steps alongside the opponent, drives the leg behind the opponent's supporting leg, and reaps it forward with a powerful sweeping action of the calf while pushing the opponent's upper body backward. [1] The throw creates a rotational force where the leg sweeps in one direction and the upper body is driven in the opposite direction, with the fulcrum at the point of contact between the thrower's reaping leg and the opponent's supporting leg. [1],[2] O-soto-gari is classified as a first-set technique in the Kodokan gokyo, taught to beginners for its clear demonstration of kuzushi (balance breaking) to the rear corner. [2],[3]
History & Origin
O soto gari was one of the original throws in Jigoro Kano's 1895 gokyo no waza and has been a cornerstone of judo instruction ever since. [1] The throw was famously used by Masahiko Kimura in his legendary 1949 match against Helio Gracie, and it remains one of the most commonly taught and scored throws in judo competition. [2],[3] Teddy Riner, the most decorated heavyweight in judo history, has used o-soto-gari as one of his primary competition techniques. [3]
Effectiveness
Lineage
Competition Record
O soto gari is one of the most commonly scored ippon techniques in Olympic judo and IJF World Championships. [1]
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Biomechanical Mechanism
Primary Action — Sweeping, reaping, or blocking the opponent's foot or leg to remove their base of support
Joints Involved — Attacker's sweeping leg (ankle or shin contact), opponent's supporting ankle or knee (swept)
Force Vector — Two opposing forces — the upper body is directed one way while the sweeping leg removes the support in the opposite direction
Timing Principle — Maximum effectiveness when the opponent's weight is committed to the targeted foot — timing supersedes strength
Position & Entry
From judo grip — Use push-pull timing (kuzushi) to catch the opponent as they step, sweep the support foot in the direction of their movement
From clinch (collar tie) — Push or pull to make the opponent step, sweep the stepping foot at the exact moment it lifts off the mat
Videos
1 video
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Ratings
Risk of injury to the person this technique is applied to
7
Very High7/10
O-Soto-Gari is one of judo's most dangerous throws; direct backward fall onto head/spine (Mifune 1956)
Skill level needed to execute this technique reliably
Intermediate
Whether this technique is allowed under major competition rule sets
Restricted
— no leg attacks below waist
UWW International Wrestling Rules, January 2026PDFLegal
— IJF — Legal throwing technique
IJF Sport and Organisation Rules 2025, Article 27PDF— IBJJF — Legal at all belt levels
IBJJF Rules Book v6.0, June 2024PDF— Unified MMA — Legal throwing technique
Unified Rules of MMA, August 2025PDF— ADCC — Legal
ADCC Rules Update, April 2025PDF— FIAS Sport Sambo — Legal
FIAS International Sambo Competition RulesPDF— FIAS Combat Sambo — Legal
FIAS Combat Sambo RulesPDFTraining Notes
✓O soto gari (major outer reap) reaps the opponent's leg from behind with a large sweeping action while driving them backward
✓Step to the outside of the opponent's foot, driving them backward with chest and hand pressure
✓Swing your rear leg behind and through the opponent's weighted leg, reaping with the back of your thigh or calf
✓The hands push the opponent's upper body backward and downward while the reaping leg takes their base
✓O soto gari generates enormous force because the upper body and leg work in opposite directions against the opponent
✓It is one of the highest-ippon-rate throws in competition because of the force of the backward fall
✓Maintain your own balance on the standing leg — the throw must be controlled, not a mutual fall
Common Mistakes
!Not driving the opponent's weight onto the target leg before reaping — the leg must be loaded to be taken
!Standing too far away and reaching with the reaping leg — you must be chest-to-chest
!Reaping too low at the ankle instead of through the thigh-to-knee area — the power zone is higher
!Bending at the waist during the reap, which lifts your own centre and reduces forward pressure
!Falling forward on top of the opponent — maintain the standing leg as your base
!Not following through with the reap — the leg must sweep completely through, not just touch
!Using o soto gari against a forward-leaning opponent without first pushing them upright or backward
Related Techniques
Counter Techniques
Lower Centre of Gravity — bend knees and drop hips to make the throw harder to executeLift the Targeted Leg — raise the foot being attacked above the sweeping actionCounter-Throw — exploit the attacker's committed weight to throw them insteadGrip Break — deny the thrower their preferred gripping configurationStiff-Arm — maintain distance with straight arms to prevent the entry
Setup Chain
1Grip Setup (Kumi-kata) — establish the controlling grips needed for the throw
2Off-Balance (Kuzushi) — break the opponent's balance in the throwing direction
3Entry (Tsukuri) — position the body for the throw by turning, stepping, or loading
4Execution (Kake) — complete the throwing action with full commitment and follow-through
Sources & References
Primary Source
Kodokan Judo — Official Nage-waza Classification
1BookKodokan Judo — Official Nage-waza Classification
Traditional Judo throwing technique 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 technique terminology (Kodokan Institute)
Community
Athletics
Requires
precise timing, ankle coordination, upper body kuzushi ability
Favours
excellent balance and quick reflexes
Key muscles
tibialis anterior, calves, hip rotators, forearms (grip)
Sub-techniques
Counter O Soto Gari
GenusCounter O Soto Gari is a kaeshi-waza (counter technique) in which the defender defeats an incoming o-soto-gari by absorbing or blocking the reaping leg and then executing their own o-soto-gari against the attacker's now-vulnerable supporting leg. [1] The counter exploits the fact that an o-soto-gari attacker commits their weight forward onto one leg, creating an ideal target for a counter-reap. [1,2] The defender either steps the targeted leg out of danger or blocks the reap, then immediately attacks the attacker's standing leg with their own reaping action. [2,3]
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Running O Soto Gari
GenusRunning O Soto Gari is a dynamic variation in which the thrower drives forward aggressively, taking several running steps to build momentum before executing the outer reap, using the accumulated forward force to overwhelm the opponent's defensive posture. [1] The running entry adds significant power to the reaping action but requires the thrower to maintain balance while moving forward at speed. [1,2] This variant is commonly seen in competition when the thrower catches the opponent moving backward and capitalises on the retreating momentum by chasing and reaping. [2,3]
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Standard O Soto Gari
GenusStandard O Soto Gari executes the classical major outer reap where the thrower steps alongside the opponent, drives the upper body backward with the hands, and reaps the opponent's near leg from behind with a powerful backward sweep of the calf against the opponent's calf. [1] The reaping leg swings through in an arc, making contact behind the opponent's knee or calf and driving the leg forward while the opponent falls backward. [1,2] The technique requires strong kuzushi to the rear corner, loading the opponent's weight onto the leg that is about to be reaped. [2,3]
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Notes
O soto gari appears in 34 passages across 7 books. One of the first throws taught to every judo beginner worldwide. The attacker reaps the opponent's leg from the outside while driving them backward. Jigoro Kano placed it in the first group (ikkyō) of the gokyo no waza. (7 books in corpus; Kano, Kodokan Judo)
Frequently Asked Questions
What's the correct body position and angle when setting up O Soto Gari?
You should position yourself at a slight angle rather than directly mirrored to your partner, and keep your weight forward. This off-center stance allows you to step through and brush your hip and leg close to your opponent's body while maintaining momentum in your favor, per Ironside Martial Arts.
How should my feet and legs move during the throw?
Keep your toes pointed down and scrape them along the ground as you step, rather than lifting them up or hiking your leg. Ironside Martial Arts emphasizes this habit prevents toe and shin injuries when executing the technique at full speed.
Why is leaning forward important in O Soto Gari instead of leaning back?
When mirrored with your opponent, leaning back gives them the opportunity to throw you in return. By leaning forward as you step through, you maintain momentum advantage and prevent your opponent from reversing the technique, according to Ironside Martial Arts.
Do I need to throw my opponent over with force in O Soto Gari?
No—you only need to off-balance your opponent slightly and 'steer' them like a steering wheel rather than trying to forcefully throw them over. Once their weight is transferred onto the leg you're sweeping, the technique completes naturally, per Ironside Martial Arts.
How does the O Soto Gari work?
O Soto Gari (major outer reap) is one of judo's most fundamental and powerful throws, in which the thrower steps alongside the opponent, drives the leg behind the opponent's supporting leg, and reaps it forward with a powerful sweeping action of the calf while pushing the opponent's upper body backward. The throw creates a rotational force where the leg sweeps in one direction and the upper body is driven in the opposite direction, with the fulcrum at the point of contact between the thrower's reaping leg and the opponent's supporting leg.
Where does the O Soto Gari come from?
O soto gari was one of the original throws in Jigoro Kano's 1895 gokyo no waza and has been a cornerstone of judo instruction ever since. The throw was famously used by Masahiko Kimura in his legendary 1949 match against Helio Gracie, and it remains one of the most commonly taught and scored throws in judo competition.
Is the O Soto Gari legal in competition?
IJF: legal — Legal throwing technique; IBJJF: legal — Legal at all belt levels; UWW: restricted — Legal in freestyle, banned in Greco-Roman (no leg attacks below waist); Unified MMA: legal — Legal throwing technique; ADCC: legal — Legal; FIAS Sport Sambo: legal — Legal; FIAS Combat Sambo: legal — Legal
How dangerous is the O Soto Gari?
Danger rating 7/10. Very High — O-Soto-Gari is one of judo's most dangerous throws; direct backward fall onto head/spine (Mifune 1956)
How do I set up the O Soto Gari?
The standard setup chain: Grip Setup (Kumi-kata) → Off-Balance (Kuzushi) → Entry (Tsukuri) → Execution (Kake).
How do I defend against the O Soto Gari?
Standard counters include: Lower Centre of Gravity — bend knees and drop hips to make the throw harder to execute / Lift the Targeted Leg — raise the foot being attacked above the sweeping action / Counter-Throw — exploit the attacker's committed weight to throw them instead / Grip Break — deny the thrower their preferred gripping configuration.
What are the variants of the O Soto Gari?
Common variants: Forward sweep (sweeping the foot in the direction the opponent is stepping); Rear sweep (sweeping the foot backward as the opponent retreats); Combination sweep (chaining sweeps to both feet); Counter sweep (timing the sweep as the opponent initiates their own attack).
How effective is the O Soto Gari in competition?
O soto gari is one of the most commonly scored ippon techniques in Olympic judo and IJF World Championships.
What are common mistakes when doing the O Soto Gari?
Top errors to watch for: Not driving the opponent's weight onto the target leg before reaping — the leg must be loaded to be taken / Standing too far away and reaching with the reaping leg — you must be chest-to-chest / Reaping too low at the ankle instead of through the thigh-to-knee area — the power zone is higher / Bending at the waist during the reap, which lifts your own centre and reduces forward pressure.
What are other names for the O Soto Gari?
The O Soto Gari is also known as O Soto Gari, Major Outer Reaping Throw, Large Outer Reap, Outside Leg Reap, Zadnyaya Podnozhka (задняя подножка).