5 miles along the creek (flat, wide trail): 9:59, 9:10, 9:17, 9:18, 9:48. Jogged down and about half of the way up the hill home. What a difference: cool but not cold, humid air at sea level. I could breathe!
Had to run from the end of one terminal to the train and then from the train to the end of another terminal; made my plane connection with about 1 minute to spare. :)
Mostly on non-grromed trails in the woods but then had to try and book it back since I was longer than planned so stayed on the groomed trails. I'm a pretty pathetic skier though so my max effort isn't that fast.