the marathon distance, for example, choose a specific race and then periodise your training to make sure you peak for that event."Periodisation involves dividing up your time into three sizes of cycle – macrocycle, mesocycle and microcycle. The entire period
Chasing an autumn marathon PB? Make your next race a 13.1-miler. "Doing a shorter race three or four weeks beforehand is very sensible – most experienced runners would run at least one or two as part of their build-up," says endurance coach Nick
