I always wonder what's a runner to do when it comes to days when you can't run.
Say, you are on a training plan and you're set to run 30 miles next Sunday. You can't make it because your employer is sending you at the last minute to visit a customer across the country. You'll be in flying all week end long.
What do you do? Do you push this missing day to the following Sunday? Do you just ignore it and move on to the next run?
As I got more experienced, I have experimented both ways either by NOT making up for a "lost" day and making up for it. It seems that the latter is actually more detrimental in terms of fatigue.
What do you do?