Good idea. Not sure the mileage is correct though. The cascade site said it is 202.25 miles. My computer has always registered it at 206 and the t-shirt DH has from when we did it in 2006 says 206 (also have a shirt that says 204 from another year). So, unless they changed the route, I think the total mileage is 206.
I am on the fence as to whether we will be doing it again this year, buy I may track my training just for fun.