I have never been a competitive person in all my 40 something years. I've never cared that I come last in most things- at least I take part. As a child I watched my 4 siblings cheat constantly at Monopoly, Kerplunk and Buckeroo to get the upper hand and couldn't be bothered to try and keep up when I could sit still & lose for a quiet life.
But now, following the blogs on this forum, I committed a couple of weeks ago to doing a Parkrun on 2nd June and tonight alone I have emailed my local running group to ask about sessions near me AND signed up for a 5k race on 27th June.
And why? Because so many graduates on here are inspiring me by moving onward and upward and I don't want to be left behind!!!!!
Looks like C25K changes people in more ways than just getting fit.....
). He replied 'well, it's not such a bad thing to be addicted to, is it?'. I found out a couple of weeks later he's been sneaking out running too! 
Congratulations on the running club and the races. Keep us informed how it goes.