Fartlek Training: Fun Speed Workouts for Every Runner
Fartlek means 'speed play' — unstructured bursts of faster running mixed into an easy run. Learn how to do fartlek workouts and why they build speed and fitness.
May 16, 2026 · 2 min read
Fartlek, Swedish for 'speed play,' is a workout where you mix bursts of faster running into an otherwise easy run, without the rigid structure of track intervals. You might surge to a distant tree, then ease off, then pick it up again. This flexible approach builds speed and endurance at once and is one of the most beginner-friendly ways to start running faster.
Why fartlek works
By alternating harder surges with easy running, fartlek delivers many of the benefits of interval training — improved speed, VO2 max, and lactate tolerance — in a less intimidating, more playful package. Because it's done by feel rather than exact splits, it teaches you to sense and control your effort, a valuable racing skill.
How to do a fartlek workout
- Warm up with 10 minutes of easy jogging.
- Pick a landmark (a tree, lamppost, or corner) and surge to it at a faster pace.
- Ease back to easy running until you've recovered.
- Repeat with surges of varying length and intensity for 20–30 minutes.
- Cool down with easy jogging.
Structured fartlek variations
- Time-based: 1 min hard / 1 min easy × 8–10.
- Pyramid: 1-2-3-2-1 minutes hard with equal easy recovery.
- Landmark: surge between lampposts or telephone poles.
- Race-prep: mix surges at goal race pace into a longer run.
No track required
Fartlek's greatest strength is freedom. You can do it on roads, trails, or paths, with no need to measure distance precisely. That makes it perfect for runners who find the track intimidating or monotonous.
Who fartlek is for
Fartlek suits everyone, but it's especially good for beginners taking their first steps into speed work and for experienced runners who want a mental break from structured intervals. It introduces faster running gently and keeps training varied and enjoyable.
Frequently asked questions
What does fartlek mean?
Fartlek is a Swedish word meaning 'speed play.' It describes a workout that mixes bursts of faster running into an easy run in an unstructured, flexible way.
Is fartlek good for beginners?
Yes. Because it's done by feel and requires no track or precise pacing, fartlek is an excellent, low-pressure way for beginners to introduce faster running into their training.
How is fartlek different from interval training?
Interval training uses structured, measured repeats with set recovery. Fartlek is flexible and unstructured — you surge and recover by feel. Both build speed, but fartlek is more playful and adaptable.
Put it into practice
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