5.7 miles Monday.
I began to run to get in shape and got where I wanted to be. Now I run due to enjoyment, fitness, and stress relief. That's part of why I run after work and in the heat of the day.
I run ultras for the fitness level, emotional roller coaster during the race, and the feeling at the end of most races is unlike any other. Some more than others.
Calorie burn is nice, but my nutrition and eating habits are pretty good anyway.