There are no registration refunds. However, if you are not able to use your registration for any reason you have an option:

Transfer your registration to another individual or to your future self.

Due to the high cost of producing a running event, we cannot authorize refunds of any kind on registration fees.  The ONLY exception is active duty military orders which are completely out of your control.   Should you want to transfers your registration to another runner or your future self, these can be processed at a cost of $20.  Please write to Gavin@Mercury.Fit for instructions on how to transfer your race to either another runner or yourself.