This is the fourth in a series of posts documenting the making of my workout log. Although not required, you might be interested in reading the first three before proceeding: My blog workout log Workout log and site updates Workout log now totally, 100% feature complete (LOL!) It started out, as these things often do, with a small spark of a thought. ‘I wonder what my training load right now is like compared to back when I was training to run marathons?’ My options for trying to get a proper answer were: Find a way to backfill my Intervals.icu account...