Running Day 18

Just pounded out another 10-minute mile.  I'm beginning to wonder if the route I'm running is actually one mile or a bit shorter because I have yet to be able to run a 10-minute mile on the treadmill, but I can run it on-ground.  Perhaps one mile on the treadmill is a bit longer than an actual mile?  I've measured my route on Google Maps and such a few times to check it.  Perhaps next time I drive it, I'll check it that way.