Ko-Soto-Gake is a throw to the rear. Pin uke’s weight over the leg you are about to attack. Hook your leg around uke’s calf and drive backwards.
How to throw with Ko-Soto-Gake
1. Pin uke’s weight over the side you are going to attack. To do this pull down sharply on sleeve. Use your lapel grip to direct uke’s head towards the same side.
2. Hook the calf and drive backwards strongly!
3. Keep pulling down with your sleeve grip as your drive off your back foot.