On a treadmill in the gym, I ran 5K in 36'30". I know very well I have never run three miles straight before, but I had no idea it would be so very much easier in this mode. What a cheat. On a treadmill I should try to run 5 miles, because I should be running farther than the race distance anyway.
Also I should run at all: I am fully confident of my ability to complete the triathlon as long as I pass water stations, and while I'm not foolish enough to think of competing in it, I should aim for a not entirely absent l from my verb.