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Train on data, not guesswork.

Smarter training. Higher performance. Better results.

I'm Jaka Marinko: an endurance athlete, a Faculty of Sport student and a personal trainer. I help endurance athletes improve faster and more safely, with lab testing and coaching built on their own numbers.

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Jaka Marinko climbing the Planica ski jump at Red Bull 400
Red Bull 400 Planica

Proven at the top junior level

80

measured VO₂max (ml/kg/min)

5th

Red Bull 400 Planica, fastest junior

U20

Slovenian national team at world and European championships

4

sports with junior national titles

How it works

  1. Test

    A lab test shows where you are today: VO₂max, lactate thresholds, heart rate.

  2. Zones

    Your results become personal training zones for every intensity.

  3. Plan

    You train to a plan built on your zones, your goal and the time you have.

  4. Progress

    Your training is analysed every week, and a retest shows what has changed.

Where to start

Lab tests

VO₂max, lactate profile, fat and carbohydrate use and more. Know your numbers.

See lab tests

Coaching

A training plan built on my method and analysis of every workout, from 25 € a month. Personal coaching from me in Coaching and Elite.

See packages

Sports I coach

  • Road running
  • Mountain running
  • Road cycling
  • Mountain biking
  • Cross-country skiing
  • Ski mountaineering

Ready to know your numbers?

Book a test, or write to me and I'll get back to you as soon as I can.

Book a test