I like the dramatic lighting in the first two. I wish they had been shot in another setting, this location seems too closed in, particularly with the bushes intruding from the right of the frame. And this is a case where I think the Rule of Thirds should be broken. In the first two he is square to the camera, and particularly in the first - in his "marks" position - his body creates a nicely symmetrical shape. I personally think these would work very well with centered compositions.
I really like the third - great body position captured, and I like the processing. I agree that it is too tightly cropped, though I would be fine with space before of behind him. Each would create a different feel to the shot and a different story being told (give him space to run into or show that he's so fast he's running out of the frame).