Yes, I guess I did run like never before last weekend...my first 42 minute 10K, 11 seconds slower than the first 10K I ever ran back in July 1993, 2 months after starting running.
But I don't mind. I had been back to running less than a month after 5 1/2 weeks away from running and this was a good way to "work out the kinks." My hamstrings have been sore and stiff and the day after the 10K they seemed to have loosened up. While 42 minutes isn't blazing fast for me in a 10K, the 6:46 pace was much faster than the slowpoke training pace I've been running.
Now I've got a bit of a sore right outer knee, something new for me, but it doesn't seem to be impeding the running too much. My right hamstring has been sore too. Guess I gotta give it a day off or two as I've barely taken a day off since coming back to running.
In any case, my advice is, if you're looking to improve your speed and aren't motivated to run on the track, consider signing up for some local races as training runs. It costs a bit of $$ but usually it goes towards a good cause. Plus, it makes it more enjoyable to run fast when you're running with others.