How do you guys determine your average speed? Do you base it just on what your bike computer says it is at the end of the ride? I'm trying to get my "average speed" up, but it seems to stick at 10 mph. For instance, the 23 mile ride I did had maybe 3 miles of very steep hills, so even though I was going 15-19 on all the flats, I'm so slow on the hills that my average speed ends up being 10 mph. Probably a stupid question, but I would think that an average speed has little meaning unless you calculate in what kind of terrain the person is riding.

Yeah, it's just a number, but I'm slightly fixated on numbers.

Thanks,
Amy