In my experience, most riders use their odo to determine ride time for their own satisfaction. But I've never ridden with anyone on a long distance ride (or any ride over 40 miles) who hasn't taken a break during the ride, nor would I really want to. Part of the fun are the breaks and who doesn't need to stretch or...well...use the facilities. Okay, so it feels good to say, "I rode that century is sub-6" - but it is also an integral part of the experience to stop and have your photo taken along some hillside with cows or chickens in the background. You still rode the 100! My 2 cents… ;-)