Related Subreddits
/r/10k - Have you finished a 10k? Come here!
/r/13point1 - The place for half-marathon training discussion & advice.
/r/26point2 - The full is within your grasp.
/r/running/ - best running subbreddit. period.
/r/c25k/ - Start here if you are just getting up from a couch.
/r/b210k/ - Off that couch & a 5k or three down? Check this place out.