Avoid the deep-rooted training mistakes traditional coaches told us the past 40 years!
π Course Updated π June 19, 2026
Iβm Marlies Kort. In my 30s I ran a 2h47 marathon. In my 40s I became World Champion Ironman 70.3.
I found a new training system for age-group athletes I called The 9Mile Marathon, based on training fewer miles, saving time and reduced injury risk and fatigue accumulation.
My Skool Members Get π
β
One Training Tune-Up Talk
β
9Mile Marathon basics training course program
β
5k, 10k, half- and full marathon training schedules
My Premium Members Also Get (save 20%!)π
π fully customized training schedules (event specific running, strength, nutrition)
π our personal help, guidance and accountability
π 24/7 Whatsapp support service and 1:1 coaching calls
Most runners struggle with
- Plateauing - not making any progress
- Motivation, injury
- Accumulated fatigue
- Metabolism, nutrition, weight, energy
Click the 'Yellow Button' to join now π.