1. A 4 mile race I measured several years ago is changing its distance to 10km by adding an out-and-back leg near the 3 mile point of the original course. Do I have to ride the entire course, or just the new section?
2. I did one ride of a "10K" Saturday and found it was 35m short. For the second ride, should I ride the same route, or go back to where I know the correct start will be?