Wow, I do a new spread sheet every year. Must be a huge file by now.

I use Garmin Connnect, Goldden Cheetah, and excel. I will have to learn more about strava though. Looks interesting and seems popular.

Marked

The data is fun stuff to look at in retrospect, but it's not really useful per se unless you have discrete goals and preferably a discrete training plan building on those objective numbers.

The numbers start to count for a whole lot more when you know they're getting you forward to levels that you haven't reached before. I don't find the objective data helpful at all if I'm not in a buildup training phase on a plan - might as well just ride and record my subjective opinion of how hard the ride was.

WKO+. I watch my TSB, and see how its data matches up with how I feel (rested, tired, etc) during periods of intense training. I use the graphs to see watts / heartrate over time as one measure of fitness. I also keep track of watts/kg over time of course, always hoping for that upward trend. ;)

About 20% of my rides go to Strava....anything with climbing. Everything also goes to garmin connect just because it's easy.