It's interesting that athletes will spend so much time closely monitoring their training before a race, but very little time evaluating their actual race performance.

Race data is some of the most useful information you can gather—it tells you exactly which areas need attention. These areas may include pacing, pre-event and event nutrition and hydration, tapering, mental skills, race strategy or tactics, and specific performance limiters like strength endurance.

Athletes often walk away from a disappointing race with no real concept of what went wrong, only to return to the same training methods they were using before the race. Perhaps you recall the adage "those who forget the past are doomed to repeat it?" This applies directly to racing.