Last week I "ran" a "marathon". Okay, I "ran" 5.6 miles. And by "run" I mean I did this sort of run/shuffle/race walk thing and I also just walked for part of it too.
I probably shouldn't have done it because of my injury, but I had fun and learned a bit about racing through pain. It was tricky to push enough to feel satisfied, but not enough to risk serious/further injury. I think I did manage that though I did make my PT unhappy with how tight my calf muscles ended up.
I now have to stretch them as well as do my PT exercises. Plus, I'm giving up on track until January. Just biking and swimming for me until I can run without pain.