Race strategy for 300m?

The further out the lane, the easier it is to run because you don't have to hold a tighter curve (it is easier to run in straight line than to make turns). If you have a choice I'd say from the middle of the track to the outside because from a middle lane you are also able to see other runners and can pace yourself using them (though you don't want to run their race). I would try to stay close to the others though not going all out and then go for it in the last 100m.