Why do I have to pay $1?

 My husband/boyfriend/brother/father wants to do this too.  Is this only for women?

 So I donate $1 and only 25% of it goes to charity, what gives??

 When do the charities get their money?

 What happens if I sign up and then don't complete a marathon or half-marathon this year?

 Are wheelchair participants eligible?

 Do I have to already be signed up for a marathon or a half marathon to register on this site?