Running (warmup/down) 13:56  2.0 mi (6:58 / mi)
Around the indoor track at HBS. Was going to do this on treadmill but there was a queue. Indoor track is 1/9th of a mile, cunningly. So lots and lots of bends.
Running (intervals) 22:20  4.0 mi (5:35 / mi)
537 (quite tiring, got a bit carried away on #3)
Running (in between) 16:00  1.0 mi (16:00 / mi)
4x4 walking/slow run in between
Gym (Bike) 24:00 
Some more warming up and down. I was going to read the Economist anyway so I figured I might as well do some exercise while doing so.
God it feels good to be "back"