To pause your run, just lightly tap the screen. To restart your run, lightly tap the screen again. Easy!
If you would like to finish a run, tap the screen and hold until the run finishes.
If you would like to leave a live run, follow the same steps. We'll double check that you want to leave your run (slips of the finger do happen!). Just remember: if you leave mid-run, you won't be able to see your stats!