The same goes for Joe Schmoe. Every racer will benefit from learning to analyze their speed, cadence, HR, and (optionally) power data. Every. One.
That's where your marginal gains (5-10% increases) will be found.
EDIT:
Learn to analyze it on the bike when racing and later at home after the races.
For example: If you know your threshold is X Beats Per Minute or Y Watts, then you be careful not to go over that when you are taking pulls or trying to take a lap.