O-Soto-Gari: The First Throw Every Judo Beginner Should Master

If you walk into any judo dojo in the world and ask a black belt what throw a beginner should learn first, you will almost always hear the same answer: o-soto-gari. The "major outer reap" is one of the original 40 throws of the Kodokan and one of the most natural-feeling techniques in all of judo. At Hughey's Judo we teach it in the very first weeks of a new student's training — and we keep refining it for the rest of their careers.

What is o-soto-gari?

O-soto-gari translates to "major outer reap." The thrower steps deeply outside their opponent's leg, drives them backward and slightly to the corner, and then reaps the opponent's leg out from under them using the back of their own leg. Done well, the opponent goes from standing to flat on their back in a single beat.

It is one of the cleanest expressions of judo's core principle, kuzushi (off-balancing). You break the opponent's posture toward their back corner, occupy the space where their foot needs to be, and harvest the throw.

Why beginners learn it first

There are a few reasons o-soto-gari is the universal starter throw:

The off-balance direction is intuitive. Backward is the easiest direction to push someone. You can feel kuzushi instead of having to imagine it.
The footwork is one step. Compared to hip throws or foot sweeps, the entry is short and direct.
It scales forever. White belts can do it. Olympic champions also win Olympic matches with it.
It teaches you to commit. A timid o-soto-gari falls apart. A committed one works. Judo demands commitment, and this throw bakes the habit in early.

Step-by-step

Grip. Standard right-handed grip — your right hand on your partner's left lapel, your left hand on their right sleeve.
Kuzushi (off-balance). Push slightly with your right hand and pull down with your left, breaking your partner's posture back over their right heel.
Tsukuri (entry). Step your left foot deep — roughly outside and slightly past your partner's right foot, toes pointing the direction you want them to fall.
Reap. Swing your right leg back and then forward like a pendulum, hooking the back of your thigh and calf against the back of your partner's right thigh. Reap their leg up as you drive your chest and arms down and forward.
Land balanced. Don't fall on top of them — keep your posting foot strong and bring them to the mat under control.

Common mistakes

Stepping short. If your left foot lands behind your partner's foot instead of beside it, you have nowhere to reap to. Step deep.
Reaping without kuzushi. If you try to kick their leg out from a balanced opponent, you will hit a tree trunk. Break the balance first.
Looking down. Your head and chest direction lead the throw. Look where you want them to land.
Pulling weakly with the sleeve hand. The left hand is half the throw. Use it.

Build the rest of your judo around it

Once o-soto-gari starts working in randori, it becomes a launching pad. The threat of it opens up ko-uchi-gari, tai-otoshi, and even uchi-mata as partners step around the threatened leg. That is why we say o-soto-gari is not just a beginner throw — it is the throw your entire game can grow around.

Want to drill it on a real mat? Read the full technique page at /techniques/osoto-gari, or come try a class. Your first session at Hughey's Judo is free.