If you see that it’s unexpectedly raining this morning, but planned a 12-mile run, do you hit the road anyway? If you make it back to your house, but you’ve run 11.78, do you run down to the end of the block and back to bring it to an even 12? Last night, when you felt soreness in your foot, did it seem ridiculous to cancel a brick workout when you had this session planned for weeks? If you answered yes to all of these questions, you might be a perfectionist.