's and 'C's. "It’s a system that’s been used in triathlons for years, and is great for giving your training a long-term view," says Murphy. "Ideally you should only peak for one marathon a year, and two or three half-marathons and 10Ks. To demand everything
system that’s been used in triathlons for years, and is great for giving your training a long-term view," says Murphy. "Ideally you should only peak for one marathon a year, and two or three half-marathons and 10Ks. To demand everything from your body
