What do I do if I cannot participate (injury or otherwise) in the Boston Marathon once I have registered?
Can I start in a different wave/corral than to which I've been assigned?
Can I run in the Boston Marathon as an unofficial or "bandit" runner?
How long will the Boston Marathon course be open and when will timing stop?
The Boston Marathon is the world’s oldest annual marathon and ranks as one of the world’s most prestigious road racing events.