Modelling grade's impact on running pace

from blog Educated Guesswork, | ↗ original
I’ve been doing some more thinking about my pacing at Sean O’Brien 100K. As I said, my general sense is that I’m comparatively slower on the downhill than the uphill.[1] This is based on two main pieces of evidence: Having people pass me on the way down but catching them on the way up. Comparing Ultrapacer’s predictions to my actual splits, I...