Fitness
Fartlek Run Training
Fartlek run training mixes easy running with surges to build aerobic power and pace feel without track intervals. Most minutes stay easy; surges stay brief.
Fartlek run training blends continuous running with unstructured or semi-structured surges—lamppost to tree, 1-minute hard, 2-minute easy—to raise aerobic power without track rigidity. It teaches pace feel and mental flexibility useful on rolling race courses.
Keep most of the session easy; surges should total a minority of minutes.
Common questions
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How is fartlek different from intervals?
Fartlek is continuous with embedded surges; intervals separate hard reps with standing or walking rest. Fartlek is looser and terrain-friendly.
Related terms
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