Notes
Something is really wrong. It can only be over-training I think. While there is nothing in the data that looks unusual, heart rate versus pace looks about right. But the run was all wrong because I was working so hard to run fast and keep my heart rate up, yet I couldn't. I was tired. My legs wouldn't move and when I got my heart rate up towards 148 to 150, I was breathing quite hard. It felt in all ways like a tempo run, yet was no faster than 4:10 pace (at best). On the homeward leg from Komazawa, I was practically dragging my feet and just could not move my heavy legs fast enough to keep the heart rate much above 140. Now, an hour afterwards, I feel tired and sleepy.