Earlier this month I ran the Chicago Marathon. It was my fifth marathon finish and one of my favorite races in my hometown. As a longtime endurance athlete, I had high hopes going into the race. My training was spot on and I was fit and healthy. I was aiming for a personal best and knew that I could do it. However, it turned out not to be my day. I was happy to finish (it’s still a marathon!) and proud of myself that I didn’t give up despite not feeling great, but somewhat