Nice, easy run. Felt real light and easy through 1:15, and then it started to feel like a little more work. Didn't really notice the hamstring, although the first couple strides felt a spasm in the quad of the same leg. Probably related. In any case, both things cleared up almost immediately.
http://www.gmap-pedometer.com/?r=2840638
Out in 1 hour, back in 58:10.