The marathon is over. I trained, tapered, and recovered. Now I'm planning a few weeks of shorter faster training, in hopes of breaking the ever elusive 20 minutes for the 5K. Why the rush? Well, I always run the same turkey trot every year. It's fun, convenient, and I've conned my parents into going for the last three years. In short, I like it.
Unfortunately though, I had an unwelcome wake up call today. I did a 1 mile time trial (after an appropriate warm up of course). The result was a 5:58 mile, which at the time I thought was reasonably fast. Then I plugged that time into the Mcmillan running calculator to see my predicted 5K time. Ugh, that calculator spit back 20:40. Not what I was hoping. Especially, when I think about how I ran 20:25 5K 12 weeks after Emily's birth on a long course. Could I really be slower than so soon after having a baby? Apparently, I can.
To be honest though, I'm not sure that I trust that calculator. It also spit out a 3:21 predicted marathon time (for the 5:58 mile time), and I wasn't able to run that a couple weeks ago. Yet, I have this gut feeling that if I were to run a 5K right now I'd be able to do low 20 minutes. Basically, in my mind, it's short changing my 5K time and being overly optimistic about my marathon time.
Does anyone else use running predictor calculators? What are your thoughts?