Ko Uchi Gari - Beginners Guide
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Standard Ko Uchi Gari·Danny Karapanchev
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Standard Ko Uchi Gari
Genus小内刈り(Ko Uchi Gari)
TraditionalTranslation: minor inner reap
Overview
Standard Ko Uchi Gari executes the classical minor inner reap where the thrower hooks or sweeps the opponent's near foot from the inside with a quick reaping action of the sole, pulling the foot out from under the opponent while the hands push the upper body rearward. [1] The reap is short and sharp, targeting the inner ankle or heel of the near foot, and the hands create a pushing force that loads the opponent's weight onto the attacked foot. [1],[2] The technique can score directly as a throw or, more commonly, serves as an attack that disrupts the opponent's balance and creates the opening for a follow-up technique. [2],[3]
History & Origin
The standard form of ko uchi gari has been a fundamental judo technique since the original gokyo, valued both as a standalone attack and as the premier combination-starting technique in judo. [1] Its effectiveness as a setup has made it one of the most frequently attempted techniques in judo competition history. [2],[3]
Effectiveness
Ko uchi gari is an extremely versatile technique, effective both as a standalone throw and as one of the most commonly used setup attacks in judo competition. [1] Its compact mechanics allow it to be executed from virtually any grip position, making it a universal combination tool. [2] When timed to catch an opponent mid-step, ko uchi gari can score ippon outright despite its relatively small range of motion. [3]
Lineage
Competition Record
Ko uchi gari is one of the most frequently scored ashi-waza techniques at the Olympic Games and World Championships, valued for its versatility as both a direct attack and a combination setup. [1] Tadahiro Nomura (JPN), three-time Olympic gold medallist (1996, 2000, 2004) at 60 kg, used ko uchi gari extensively in his combination sequences. [2]
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Biomechanical Mechanism
Primary Action — Pulling and lifting with the arms to load the opponent over the shoulder or upper back
Joints Involved — Attacker's shoulders (loading point), elbows (pulling action), hips (turning under the opponent)
Force Vector — Forward and downward rotation — the pulling arm creates circular momentum while the body turns underneath
Kuzushi (Off-balancing) — Forward — breaking the opponent's balance forward over their toes allows the turning entry
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
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
Videos
Three Common Mistakes for Kouchi gari!
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Standard Ko Uchi Gari·Shintaro Nakano
Do you feel as if your Judo training is not getting you to the level you want to be? If so, check out Nakano Judo Online…
Basic Kouchi Gari TRICK
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Standard Ko Uchi Gari·Shintaro Higashi
Basic Kouchi Gari Trick, The Japanese way Follow me on Instagram!!! https://www.instagram.com/judoshintaronyc/
How To Do Kouchi-Gari in Judo | Ronda Rousey's Dojo #17
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Standard Ko Uchi Gari·Ronda Rousey
Continuing the ashi waza drills, Ronda shows you how to do one of the original 40 throws in judo! Those fast feet are a…
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4 videosWhat Instructors Say
Ko Uchi Gari is a foot-leg reaping technique that requires precise timing, hand usage, and footwork to execute effectively. Distance is critical: instructors Danny Karapanchev and Shintaro Higashi emphasize proper spacing to enable the technique, while Ronda Rousey stresses timing the sweep to the moment when an opponent's weight transfers to the target leg before it fully contacts the ground—analogous to stepping on a banana peel. Hand technique is fundamental and controversial. Shintaro Nakano emphasizes that hands must break balance first through diagonal backward kuzush: the right hand pushes the chin upward and forward while the left hand twists and pushes the sleeve downward, not merely pulling. Karapanchev describes pushing the elbow with the left hand and chin with the right, coordinating hand and step movements. Higashi introduces a weight-shifting "trick" where subtle push-pull movements move weight from one leg to the other before the reap, working on a different plane than traditional shoulder rolls. Regarding the actual reap, Nakano and Higashi agree that a sweep motion—not a knee bend or leg pickup—is essential, with Nakano noting the heel can be used heel-to-heel for deeper penetration. Timing strategies vary: Nakano recommends using fakes (particularly Morote-seoi feints) to provoke backward weight shifts, while Rousey advocates continuous movement and directional changes. Karapanchev shows transition to groundwork with knee pressure after the throw. All instructors underscore that hand and foot actions must coordinate dynamically rather than occur sequentially.
Synthesized from 4 instructors
- Danny Karapanchev — Ko Uchi Gari - Beginners Guide: Establishes optimal distance and posture; details the back step placement and synchronized hand-foot coordination; demonstrates transition to dominant groundwork position using knee pressure on the hip.
- Shintaro Higashi — Basic Kouchi Gari TRICK: Introduces weight-shifting methodology to unload the target leg before reaping; emphasizes proper hand positioning (chin pinned to shoulder) and upward reaping angle to minimize friction; presents the technique as micro-judo with applications into other throws.
- Ronda Rousey — How To Do Kouchi-Gari in Judo | Ronda Rousey's Dojo #17: Focuses on timing the sweep during the weight-transfer moment when the foot hasn't yet grounded; uses kinesthetic analogy (falling, catching balance, stepping on banana peel) to explain the biomechanical window; emphasizes large step-out footwork and synchronized hand-foot movement.
- Shintaro Nakano — Three Common Mistakes for Kouchi gari!: Identifies three common errors: insufficient hand-based kuzush (advocates diagonal backward breaking of balance using palm push on chin and twisted-wrist sleeve push), improper reaping technique (emphasizes sweep over knee bend and heel-to-heel contact), and incorrect timing sequence (catch timing before applying hand pressure); recommends fake attacks to provoke opponent's backward lean.
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Ratings
Risk of injury to the person this technique is applied to
6
High6/10
O-Uchi-Gari and variants; backward fall risk with head impact (Kano 1986)
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
✓From standard grips, step to the inside angle of the opponent's lead foot
✓Hook or reap the opponent's lead foot from the inside using the sole of your foot or the back of your calf
✓Push the opponent's upper body sideways and backward with the hands — in the direction their lead foot is being taken
✓The reap catches the heel area and sweeps it outward and backward
✓The throw is complete when the opponent falls to the side or back over their reaped foot
✓Ko uchi gari should feel sharp and sudden — a quick hook-and-push that catches the opponent in a transition moment
✓Drill at walking speed: as the partner steps forward, hook the advancing foot and push them over it
Common Mistakes
!Hooking too gently — the reap must be a firm, committed action that dislodges the foot
!Pushing the opponent straight backward without a sideways component — they brace the other leg and resist
!Not timing the reap to the opponent's step — catching a planted, weighted foot is much harder
!Attempting from outside of close range — you must be right next to the target foot
!Reaping with the shin instead of the sole or calf — less control and hooking ability
!Not maintaining the upper body drive through the throw — the push must continue until they fall
!Standing too upright without any forward lean into the push
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)
Frequently Asked Questions
Why should I use my hands when doing ko uchi gari?
Your hands are essential for kuzushi (breaking balance). Coach Shintaro Nakano emphasizes that many people neglect hand usage, but you should push diagonally backwards with your hands—pushing upward and forward—to properly unbalance your opponent before the sweep.
Should I bend my knees or sweep when executing ko uchi gari?
Ko uchi gari is fundamentally about sweeping, not picking the leg up by bending your knees. Coach Shintaro Nakano stresses that you should catch the timing and sweep all the way through, rather than just bending at the knee.
What angle should I use when sweeping the leg in ko uchi gari?
Shintaro Higashi recommends sweeping upwards at an angle rather than pulling the foot downward, because pulling down creates friction on the toe that makes the throw harder. Taking the leg upward reduces friction and makes the technique more effective.
How important is timing in ko uchi gari?
Timing is critical—Coach Shintaro Nakano identifies it as the third common mistake and emphasizes that you must catch the leg first and time your sweep to when your opponent is stepping or moving.
How does the Standard Ko Uchi Gari work?
Standard Ko Uchi Gari executes the classical minor inner reap where the thrower hooks or sweeps the opponent's near foot from the inside with a quick reaping action of the sole, pulling the foot out from under the opponent while the hands push the upper body rearward. The reap is short and sharp, targeting the inner ankle or heel of the near foot, and the hands create a pushing force that loads the opponent's weight onto the attacked foot.
Where does the Standard Ko Uchi Gari come from?
The standard form of ko uchi gari has been a fundamental judo technique since the original gokyo, valued both as a standalone attack and as the premier combination-starting technique in judo. Its effectiveness as a setup has made it one of the most frequently attempted techniques in judo competition history.
Is the Standard Ko Uchi 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 Standard Ko Uchi Gari?
Danger rating 6/10. High — O-Uchi-Gari and variants; backward fall risk with head impact (Kano 1986)
How do I set up the Standard Ko Uchi Gari?
The standard setup chain: Grip Setup (Kumi-kata) → Off-Balance (Kuzushi) → Entry (Tsukuri) → Execution (Kake).
How do I defend against the Standard Ko Uchi 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 Standard Ko Uchi 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 Standard Ko Uchi Gari in competition?
Ko uchi gari is one of the most frequently scored ashi-waza techniques at the Olympic Games and World Championships, valued for its versatility as both a direct attack and a combination setup. Tadahiro Nomura (JPN), three-time Olympic gold medallist (1996, 2000, 2004) at 60 kg, used ko uchi gari extensively in his combination sequences.
What are common mistakes when doing the Standard Ko Uchi Gari?
Top errors to watch for: Hooking too gently — the reap must be a firm, committed action that dislodges the foot / Pushing the opponent straight backward without a sideways component — they brace the other leg and resist / Not timing the reap to the opponent's step — catching a planted, weighted foot is much harder / Attempting from outside of close range — you must be right next to the target foot.
What are other names for the Standard Ko Uchi Gari?
The Standard Ko Uchi Gari is also known as Ko Uchi Gari, Classical Minor Inner Reaping Throw, Standard Small Inner Reap, Standard Inside Ankle Pick.