I'm not a hard core runner, but running has been one of the sports I do nowadays aside from attending Body Combat, since I'm not good at balls a.k.a. kaki bangku.
Few months ago I've achieved one of my goal this year, by completing a 21km half marathon. It felt so good, great sense of achievement.
4 runs in total in 2012. The next, which is also the last one this year, is Penang Bridge International Marathon on November. Another 21km. :)
Keep running Alan, and take care of your knees too!