About the book: 2019 / Yuri Strofilov - owner of the online training service s10.run and the media resource Saint-Petersburg.ru - ran his first marathon at the age of fifty, and a year later he was the fastest Russian runner at the New York Marathon. Now we have New York, Boston, Tokyo, Berlin, London behind us. The book in which he shares his experience will be of interest to both advanced and beginning track and field athletes. It will help you gain motivation and teach you to enjoy every workout..