I feel Slovenia Julian Alps Trail Run by UTMB takes place on Fri, Sep 18, 2026 in Radovljica, Slovenia. The main route is 124 km.
- Date
- Fri, Sep 18, 2026
- Start
- Radovljica 🇸🇮
- Distance
- 124 km
- Climbing
- 5,893 m
- Level
- Open to all
The Julian Alps Trail Run by UTMB is the largest trail running event in Slovenia, offering multiple distances through scenic alpine terrain.
Official event pageWhat this race demands
The I feel Slovenia Julian Alps Trail Run demands exceptional endurance and structural durability to cover 124 kilometers and 5893 meters of vertical gain across alpine terrain.
Ultra Endurance
Covering 124 kilometers requires sustained cardiovascular output and metabolic efficiency over an extended duration.
Climbing and Descending
Accumulating 5893 meters of elevation gain demands strong eccentric leg strength to manage the continuous vertical load.
Alpine Terrain
Navigating scenic alpine terrain in September requires physical adaptability to changing mountain conditions and sustained focus.
A sustained intake of 60 to 90 grams of carbohydrates per hour is necessary to support energy levels throughout the multi-hour duration of this event.
Estimated finish times
Estimates by level, not promises. Your own number depends on your fitness on the day.
Your road to race day
Race day at I feel Slovenia Julian Alps Trail Run by UTMB is 4 weeks away. This is how a coach divides that time. The first phase starts now.
01Peak1 week · Aug 22, 2026 – Aug 28, 2026
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
02Taper2 weeks · Aug 29, 2026 – Sep 11, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
03Race week1 week · Sep 12, 2026 – Sep 18, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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