This is more than just a detailed note that you have kindly chosen to share with your medium community; for me, I find it inspirational because it not only coaches on running, but informs the reader that what is worth doing at all is worth doing well. I like how you concluded with finding your unique reason for running (or engaging in what one does). I could tell you're very passionate about this sport.
I was compelled to check your posts and read your work after you left a comment on mine. Keep it up.