Ran solo for the first half then was joined by Toma and Robert. Nice day to run - gentle pace. Cool and foggy today - should be sunny in a couple of hours.

Warmed-up and ran several miles then did 35 minute circuit class. Followed up with 8+ miles to check out extend of injury. During the circuit class I extended my right leg and did what was effectively a lunge - during the first three or four I noticed that there was some tightness at the top of my quad, near the anterior pelvic area (the stretching felt good). On the next lunge I felt a tremendous pop with some associated pain - little pain, mostly scare. It was runnable without real symptoms but the area is a bit sore to touch. Hmmmm....have to get my anatomy book out and try to figure out what I did.

Ugh. Hard workout today. The miles felt good. Did 8 hill sprints at 15% incline (I realized today that the other hill sprints were at 15% incline rather than 11% which I had previously assumed) for 10 seconds at 7:24/mile pace.

Forty minute circuit workout - that woman is definitely a man hater (she at least hates old, bald men - I'm sure of it.)