Ran part way out the N. Sawyer Camp Trail extension and back, taking it very easy and reading the day 2 Red course from Boggs Mtn. as I ran. My left hamstring was pretty sore and clinchy to start out with, but it felt better after about 15 minutes of jogging.
After about 4 minutes of the run, I noticed a bit of pain just below my right pectoral muscle. It's the pain that started during my first lap at the Bridle Trails 50k relay and has come back in each run I've done since. It subsided shortly after it began. I also have some soreness on the right side of my ribcage, probably from yesterday's strength training.