Originally Posted by
StephenH
FYI, for various unusual circumstances, they can sometimes extend the time on intermediate checkpoints. If you're running late on an intermediate checkpoint, but still in good shape to go on, keep going and worry about it later. I'm not suggesting y'all should have done it there, but something to keep in mind for the future.
For extremely rare and unusual circumstances.
Officially, this is only supposed to happen if a rider stopped to help another rider who was in trouble (i.e. a bad accident ... not a flat tire) or if there was some sort of natural disaster (i.e. a landslide closes a road during the ride).