It’s true that it’s not spring yet, but “spring training” sounds much more rewarding than “late winter training,” so here we go, with Hal Higdon’s 12-weeks to race readiness guide. Higdon kindly offers three schedules, one for novice runners, one for intermediates, and one for advanced runners. Higdon, the author of Marathon: The Ultimate Training Guide , and a contributing editor to Runner’s World, advises us how far to run how often, when to rest, when to use interval training, hill training and cross training. It’s got to help. Get started here.