There are many other opportunities when your opponent is moving round the mat. Every time he steps with his left leg he is spreading his legs. Try with a subtle pull to make him step a little further forwards or to the side. Then attack with o-uchi-gari.

This throw is very useful for breaking up a defensive position. It is possible to attack several times in quick succession with it which should at least make your man stagger. Depending on what reactions you get it is then easy to come crashing ni with some other throw.

One last point. When you hook your opponents leg do not lift it up. If you do this you are supporting him to a certain extent. The idea of the throw is to take away his support. Aim to keep your reaping foot fairly close to the mat.

A similar throw against this wide leg stance is to use the right leg and foot against the opponent's right leg. This means shifting his weight over his right leg. This is called ko-uchi-gari.