Getting in the work on the hills (5/19/2014)

This evening, I 'wogged' with my co-worker - and she really put me through my paces.  We hit several hills, which I really needed. I used one of my smartphone tracking apps (Runtastic).  The charts below (19:45/mile) were generated by the app - comparing these with my co-worker's GPS watch (Garmin, I think it's a 210) - 4.51 miles, 1:23:52 (pace 18:35/mile).