In the close-up shots of the bobsleigh race, the trees are nestled right next to the rather narrow race course. In the long shots, the race course is much wider with the trees nowhere near the course.
When Marshall hits the snow bank during the bobsleigh race, the bobsleigh gets stuck in the snow bank while Marshall is propelled forward through the air. In the subsequent resting shot, both Marshall and the bobsleigh are side-by-side, Marshall behind and the bobsleigh beside, what one would assume is supposed to be that same snow bank.