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O-Soto-Otoshi

大外落

"Major Outer Drop"

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Quick Facts

Category
Nage-Waza
Subcategory
Te-Waza
Difficulty
Beginner
Overview

O-Soto-Otoshi is a major outer dropping throw closely related to Osoto-Gari. Where Osoto-Gari reaps the leg with a pendulum swing, O-Soto-Otoshi drops uke directly backward by blocking the outside of their leg and using body weight to push them over and down. The "otoshi" (drop) component means tori drives their body weight directly downward onto uke rather than reaping. This makes O-Soto-Otoshi more accessible for beginners as it relies on body weight rather than sweeping leg power.

Video Demonstrations
大外落 / O-soto-otoshi — judo technique demonstration
大外落 / O-soto-otoshi KODOKAN
Osoto-otoshi - Demo — judo technique demonstration
Osoto-otoshi - Demo Efficient Judo
O SOTO OTOSHI — judo technique demonstration
O SOTO OTOSHI Sport-Management- System
O-Soto-Otoshi Tips | Riki Judo Dojo — judo technique demonstration
O-Soto-Otoshi Tips | Riki Judo Dojo Riki Judo Dojo
How to Execute

O-Soto-Otoshi — Step by Step

KuzushiOff-balance

Step to uke's right side and pull their sleeve arm forward and upward while pushing the lapel arm over and to uke's right rear corner. Uke's weight should shift onto their right heel as they are pulled and pushed backward and to their right.

TsukuriEntry

Step your right foot to the outside of uke's right foot, placing it behind and to the outer side. Move your chest close to uke's chest. Your right leg is now outside uke's right leg. Begin to lean your upper body forward and into uke's upper body, driving their weight backward onto their right heel.

KakeExecution

Push uke's upper body backward and down while simultaneously pressing your right leg against the back of uke's right thigh, blocking their leg from stepping backward to recover. Drop your own body weight forward and onto uke, driving them straight down and backward to the mat. The dropping body weight does the primary work.

  1. 1

    Step to the outside

    Step your right foot to the outside of uke's right foot, positioning your body to uke's right side with your chest facing theirs.

  2. 2

    Break uke's balance backward

    Pull uke's sleeve arm upward and forward while driving the lapel arm across uke's body toward their right rear. Shift their weight onto their right heel.

  3. 3

    Press your body against uke

    Drive your chest into uke's chest, leaning forward. Maintain the backward push with your arms while physically pressing uke backward with your torso.

  4. 4

    Block uke's retreating leg

    Place your right leg against the back of uke's right thigh. This blocks uke from stepping backward to recover balance.

  5. 5

    Drop uke backward

    Drive your body weight forward and downward, pushing uke over the blocked leg. Uke drops straight backward to the mat.

Key Principles

What Makes It Work

  • The "drop" is driven by body weight — lean your chest into uke and use gravity, not just arm strength.
  • The leg block prevents uke stepping backward; without it, uke simply retreats and the throw fails.
  • Break uke's balance to their right rear before entering — a balanced uke can absorb the forward push.
  • Stay tight to uke throughout; any distance between chests reduces the pressure needed to drop them.
Common Mistakes

What to Avoid

#1 Common Mistake

Trying to reap the leg like Osoto-Gari

O-Soto-Otoshi is a drop, not a reap. The leg blocks uke's thigh and the body weight drives downward — there is no pendulum reap.

#2 Common Mistake

Standing too far from uke during the drop

Your chest should be pressed against uke's chest. Distance reduces the forward-dropping pressure on uke.

#3 Common Mistake

Blocking too low (knee or ankle instead of thigh)

The block should be against uke's upper thigh. Blocking at the knee puts torque on the joint; at the ankle, uke can step over it.

#4 Common Mistake

Not establishing backward kuzushi first

Uke must be pushed backward before the drop. A forward-balanced uke will simply push you back.

When to Use

Best Moments to Apply O-Soto-Otoshi

O-Soto-Otoshi is effective as a direct attack when uke is backing away or has been pushed backward. It works well in combination with forward-attacking throws — if uke resists a forward throw and pushes back, transitioning immediately to O-Soto-Otoshi exploits their backward momentum. It is also effective as a counter to uke stepping in for a hip throw.

Variations

Variations of O-Soto-Otoshi

Combinations

Combination Sequences

FAQ

Frequently Asked Questions

What is the difference between O-Soto-Otoshi and Osoto-Gari?
Osoto-Gari reaps uke's leg with a powerful pendulum swing, lifting and sweeping it out from under them. O-Soto-Otoshi blocks uke's leg and drops body weight directly onto uke to push them down — there is no leg reap, only a leg block and a downward body drop.
Is O-Soto-Otoshi suitable for beginners?
Yes. It is one of the more accessible dropping throws because it relies on forward body weight rather than the complex leg timing required for Osoto-Gari. Beginners can practice the body drop mechanics before progressing to reaping techniques.
Can O-Soto-Otoshi score ippon in competition?
Yes, when executed with speed, power, and control — landing uke directly on their back — it can score ippon. At higher competition levels it is often used as a counter-throw rather than a direct attack.