After testing the Watch in a short practice run about 10 days ago (using Runtastic), I felt okay about using the Watch for my 10K today. Man, was I wrong. For starters (and I don't know if it's just me), I had such a hard time getting Runtastic to even open on my Watch. Once it finally did open (early in mile 1), it would not respond to my taps to start running. My hands weren't sweaty (it was 35 degrees at the start), so that couldn't have been an issue. Has anyone else had that problem? I finally gave up, uninstalled and reinstalled the app during a water break, but it still did not work. Thank God I brought my Microsoft Band 1 as a backup, but still - what a disappointment. Am I missing something? Runners, have you used other running apps on the Watch? I had been using Map My Run with my Band, but since it doesn't have a native Watch app, I figured I could switch to Runtastic. Since I carry my phone with me, though, I think I'll go back to Map My Run. What other apps do runners use that have worked well? Even though I just got the Watch, I'm really hoping that Apple improves version 2 for running so I can sell this one. I like the other features a great deal, but if this keeps happening, I'll drive myself nuts!