12 easy. My left calf tweaked about 10 miles in.... I stopped briefly to stretch and massage it, and I finished no problem. It feels a little sore now. My calves have been sore and tight recently, but I've taken care to massage and stretch them before every run.
Maybe I'm getting to the age where I pull muscles easily. That's a really sad thought. If this is a pull, it would be the 4th in the last 9 months.
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