Ko Uchi Gari is one of the original 40 throws of judo as developed by Jigoro Kano. It belongs to the second group, Dai Nikyo, of the traditional throwing list, Gokyo, of Kodokan judo. It is also part of the current 67 throws of Kodokan judo. Ko Uchi Gari is is classified as a foot technique, ashi-waza.
Ko Uchi Gari – Minor Inner Reap In Action
Push Uke lightly to his hidari ushiro sumi with both hands, so that he must push back to retain his balance. As he pushes back, lightly pull Uke’s right sleeve with your left hand, while stepping back with your left foot and placing it behind your own right foot. Lead Uke to advance his right foot a little more than usual.
At the instant his right foot is about to touch the mat – but has not yet done so – reap his right leg from the inside with your right foot, keeping your weight on your own left foot. You should apply the sole of your right foot to his right heel, and reap in the direction in which his toes are pointing.
TIP: Do not reap Uke’s heel upward, but forward so the little toe edge of your foot rubs the mat.
Assist this reap by continuing to pull Uke around to your left and driving Uke’s lapel straight backward with your right hand. If the throw is well done, both of Uke’s legs will be raised in the air on either side of you as he falls backwards in front of you. You may even find yourself falling across the inside of Uke’s right thigh as you fall with Uke.