
In common with most riders who’ve ever trained with any purpose, I’ve always kept track of a couple of subjective scores along with the more objective training data. These have always been a simple “How did you feel?” and “How hard did the effort feel?” They are scored from 0-10, 10 being “best” or “hardest”.
As a coach, I’ve always set some store by these numbers. They’re a godsend if you want to spot overtraining early rather than just wait for the client to drop dead.