Ultra Trail Kosciuszko Miler Training Plan

16 week plan officially starts 11th August 2025
Want to take your training for the Kosci Miler to the next level?
Check out our bundle: Base + Kosci Miler Training plan – 28 weeks starts 19th May 2025
Turn up to the Kosci Miler prepared.
The Ultra-Trail Kosciuszko (UTK) by UTMB offers a truly unique 100-mile experience — with a stunning mix of alpine trails, remote wilderness, and a course that keeps you above 1600m for a significant portion of the journey. It’s beautiful, brutal, and unforgettable.
To help you prepare for the physical and mental demands of running 100 miles at altitude, we’ve created a dedicated Kosci Miler training plan. It’s designed not just to build endurance, but to help your body gradually adapt to the unique stressors of high-altitude running — where pacing, recovery, and smart effort management are key.
The plan is a structured 16-week race prep block that layers in volume, elevation, and intensity in a progressive way. You’ll develop the fitness and resilience needed to move well all day (and night), while minimising injury risk and avoiding burnout.
This plan is built for runners with big goals and big dreams — whether you’re chasing your first buckle or returning to conquer Kosci with more confidence than ever.
Kosci Miler Training Load
Intensity
3 / 5
Strength
4 / 5
Endurance
5 / 5
Training Load
5 / 5
What our members say
Frequently asked questions
Is this program suitable for a beginner?
This program is suitable for someone who has been training consistently for at least 2 years and is able to comfortably run 20km – 25km regularly on hilly trails without injuries. If you can not, or have not, consistently included a 20 – 25km “long run” in your training program, you should consider training for a shorter event. 16 weeks will not be enough time to prepare your body for this 100 mile race distance without risking injury.
Can you help me train when I'm injured?
Probably, depending on your injury. We are very sorry to hear you are injured. We know how difficult that can be. If you have an injury that requires some rest from running, there are almost always some cross-training options available to help you maintain your fitness, strength, and sanity. By cross-training while you are injured, and including some simple strength, stretching and foam rolling routines, you will speed up your recovery time and ultimately make your return to running easier and more successful.rnrnYou can start our free 4 week cross training plan now for FREE. It will help you to identify appropriate exercises based on your injury type and recommend what cross training methods will work best for your injury. When you are ready you can start our 10-week return to running program or one of our run-specific rehab plans.
Can I start this program late?
You get immediate access to your training plan when you join. You can view the current week plus any previous weeks. We recommend that you start with a weekly volume that your body is currently able to cope with, which might mean starting on the beginner level before moving to intermediate a few weeks later.
About the founder

Mark Green
Physiotherapist and Elite Runner
Streek’s founder, Mark Green, is an elite runner and physiotherapist whose journey through running has been marked by triumphs and injury setbacks. These challenges sparked a deep-seated determination within Mark to uncover the secrets to running longevity and peak performance. rnrnBlending physiotherapy techniques with proven strategies for strength building, injury prevention, and consistent training, Mark developed his unique training plans that have assisted thousands of runners to achieve their goals.