2024 RunBlogRun Winter Training Program, Week 9, Day 4, whether you call it Fartlek or Speed Play

This is Thursday, February 29, 2024. This is Fartlek Day. Gosta Holmer, an Olympian from Sweden who competed against Jim Thorpe, invented this interval program run on the trails and in parks. Mr. Holmer developed it for the Swedish cross-country team in the 1930s, which did very poorly in European competitions, and Gosta wanted to […]