i appreciate how easy technology has made the tasks of collecting, collating and analyzing data. however, after years of analyzing the crap out of every push up, sit up, side straddle hop, every mile of running, every mile of swimming, and every mile of riding for myself, as well as for each of my troops, it just isn't in me anymore to collect and analyze anything. but i appreciate that others do, and that it helps them to do better. there is no denying there can be a benefit to the collection and analysis.
but, for me, i'm not so sure that i'm trying to do "better" each time i head out the door as much as i am just "doing" each time i head out the door. time spent running or in the saddle or in the pool is a time of solace and escape for me. i prefer not to clutter it with concerns about "is this performance better than the last time?" and similar questions.
but, again (just to be sure it is clear)... i think it is great that people do derive a benefit from the data. (and the site that tsl recommended looks impressive.)
be well,
jim