A good trick is to think about what you are doing instead of the (negative) outcome. If you run, thinking about your movements and where you're at in the sprin

A good trick is to think about what you are doing instead of the (negative) outcome. If you run, thinking about your movements and where you're at in the sprint is good, thinking about what if you stumble, what if a fan throw a bottle at you, what if the guy behind me speed up, what if I lose and did everything for nothing...in this case, you've stopped to think about running, you're not focused, and so you're not doing a good run.