MRI: Cleared to train for Boston. A tiny bit of cartilage irregularity near the knee, but no tear, perceived damage or swelling. They did think it was odd I was still feeling pain, so encouraged me to see an orthopedic doctor if problems persist. I'll start small again and see what happens.
6 miles on TM @ an overall 8:30 pace. Cautious, yet worked my way up to a 2.5 incline and 8min pace. No locking or pain today. Leg does feel a little weak. I will compensate with cross-training as I work up the mileage. Hope to average 6 miles per day (+ 30 min elliptical) over the next week and work from there.