if you race for fun, in order to ensure adequate recovery. For the same reason, the longer the distance the less you should race.Heres a schedule for speedsters and fun runners for the four classic distances:Goal: Marathon for speedHow often: Once
of Medical Science for Sport and Exercise showed that speed at lactate threshold is the best physiological predictor of distance-running performance. Indeed, Frank Shorter, the 1972 Olympic marathon champion was said to have had a modestly high VO2max
race in Brussels in August 2007, which means they have to run well at the Flora London Marathon at the end of the month.And then there are other runners like Eric, who rolls out of bed on Monday and decides he's going to race a 5K on Sunday after
