You could try that, and as long as you move slowly and follow the game, it might work.
I play indoor soccer (field is the size of a ice hockey rink) and I tried using my goPro. You have to put it either by the goals or far enough away from mid section to get the entire field. I had a goPro about 10 feet from the boards at mid field, and it didn't have enough view to capture the entire field.