Ran 5.0 miles @ 8:53/mile pace.
AHR = 143
Lower 50s, cloudy changing to partly cloudy.
First run in over three weeks. Felt good. I wondered how I'd do and overall, better than expected. Ran with a coworker who had never run five miles before, so that helped me keep the pace in check.
I'm typing this about an hour after the run. Legs feel like they've almost done twice the distance, but that's just rust. My HR did stay nice and low (for me) though. That's a good sign. As for the knee, I of course could feel it. I suspect some days will be better than others. Today it was just a dull pain, but it didn't seem to affect my gait.
All in all, felt absolutely great to run again.