MFR 88: Fartleks, Repeats, Intervals and Tempo Runs Explained
When runners discuss speed work, four words you likely hear thrown around are fartleks, repeats, intervals, and tempo runs. If you ask ten people what each means, you’ll get several people agreeing on their meanings, but you’ll also get several people who know ‘more or less’ what they mean, and you’ll get some who’ll tell you they’re not sure; they’re confused. Let’s unravel the confusion in favor of clarity.