Non-runners have the misconception that running is always easy for runners. No matter who you are, Step One of a long run takes some grit.
Perspective: Can you run 400m in 70.5 seconds? Dennis Kimetto did that 105 times nonstop today. #BerlinMarathon
Remember that time you ran your first marathon in 2:10 while qualifying for the Olympics? Galen Rupp will.