Your story also shows how important it is to keep a training log. I keep my log on Map too. It is important to record notes for each activity also, in case a person needs to review in later months, the notes will be a reminder of what happened. For example, my Saturday training group did a route that was all steep up and down with grades of 11-16%, a 10-mile loop that we would repeat, with the SAG stop at the starting point. I was planning on riding multiple loops for the hill training. At the end of the first loop, I was the 4th cyclist to finish out of 22 cyclists, so felt real good about the ride, but when I came to a stop for the SAG I had symmetrical pain in both of my upper inner thighs, a pain that was new to me. So I was cautious, didn't want to get an overuse injury, and did not repeat the loop. I recorded it to my training log and when I ride that route again, I can go back and remember to be careful, to not do loop repeats if the odd pain comes back.

Another reason why the training log is so important is to see at a glance that oops, better take a rest day, because there have been too many bike rides or too many spin classes or too many weight training workouts or too many hikes.