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9Mile Marathon Running School
Running solid marathons while training FEWER miles. Avoid the deep-rooted mistakes traditional coaches told us the past 40 years.
Hi, I’m Marlies Kort, topcoach and founder of The 9Mile Marathon
In my 30s, I ran a 2h47 marathon. In my 40s, I became World Champion Ironman 70.3
Through working with Coach Baz, we realized that the traditional approach of endless long, slow training runs is often counterproductive for age-group athletes. It takes too much time, leads to injury, and doesn’t deliver the results you want.
That’s why we created the 9Mile Marathon Training System - a smarter, more efficient, and less injury-prone method specifically designed for age-group runners of all levels to optimize their overall fitness and running performance, without endless long and slow training runs.
Inside my Skool Community you'll get free access to my training courses (9 modules) and 5k, 10k, half- and full marathon schedules.
👉 Course Updated 👈 June 1, 2026
Click the 'Yellow Button' to join. My community is free to join, however I'm selective with new members. Please answer the application questions as thoroughly as possible.