Fartlek Fartlek is a middle and long-distance runner's training approach developed in the late 1930s by Swedish Olympian Gösta Holmér. [1]

Dec 8, 2020 · Fartlek is literally, playing around with speeds—essentially, it’s a form of unstructured speedwork. Unlike tempo and interval work, fartlek is completely unstructured—which means you …

What Is a Fartlek Run? A fartlek run is a type of running workout that involves running continuously at varying paces. It challenges your body to adapt to various speeds, conditioning you to become …

Aug 27, 2022 · Fartlek — Swedish for “speed play” — is basically organized chaos. No stopwatch. No lap splits. Just you, your surroundings, and some good old-fashioned bursts of speed. You might …

May 28, 2024 · Fartlek Meaning: The term "Fartlek" is a Swedish word that translates to "speed play." This form of training is a blend of continuous running with variable intensity, mixing faster running …

Sep 11, 2023 · Fartlek is a Swedish term that translates to ‘speed play,’ and so it literally refers to playing around with different speeds and paces, and is essentially a form of unstructured speedwork.

Feb 26, 2026 · “Fartlek” comes from a Swedish term meaning “speed play,” and it’s usually described as something you just go out and do for funsies. You choose a landmark—say, a mailbox up …

Jun 2, 2025 · Fartlek is a Swedish term meaning “speed play,” and it helped take the nation’s cross-country success to whole new levels decades ago. Now, athletes and everyday runners around the …

May 29, 2025 · What Is A Fartlek Run? Fartlek runs are a type of interval training designed to blend speed and endurance work in a fun, flexible format. The concept originated in the 1930s, developed …

Fartlek training is a kind of running training which involves random variations in speed and intensity, alternating between bursts of sprinting and slower ‘recovery’ jogging.