Julian Alps Trail Run by UTMB
Julian Alps Trail Run by UTMB 120K
Radovljica → Kranjska Gora
Race guide
Updated 29 June 2026
The Julian Alps Trail Run by UTMB 120K is a 124 km point-to-point adventure running from Radovljica (493 m) through the heart of the Slovenian Julian Alps to the finish in Kranjska Gora (814 m), accumulating 5,557 m of total climbing and topping out at 2,166 m. The route is a genuine mountain race — not a trail jog dressed up in alpine scenery — threading through forested ridges, exposed summits, and deep valley approaches before delivering you to one of Slovenia's most iconic mountain towns. With a single overall cut-off of 29 hours at the finish, the race rewards smart pacing and punishes those who burn matches in the first half.
Course & Terrain Overview
The 124 km route divides naturally into three acts. The opening third runs from Radovljica through the Jelovica plateau to Babji zob (17 km, 1,096 m) and then along the Ratitovec ridge (32 km, 736 m), offering long runnable stretches on forest trails and ridge paths. These early kilometres feel generous and the terrain invites fast movement — which is precisely the trap. The middle section deepens the commitment: Žirovnica at 56 km (575 m) marks the first crew access point, a welcome reset before the race pivots sharply upward toward Stol (67 km, 1,220 m) and then into the steep, technical terrain of Tofov Graben (76 km, 1,942 m), the highest crew-accessible point on the course. The final third, from the Golica/Klek ridge (83 km, 1,703 m) through the Mojstrana area at Podhom/Dovje (95 km, 1,575 m) and down to Gozd Martuljek (106 km, 700 m), is where the Julian Alps show their teeth — sustained descents, technical footing, and legs that have already been working for 16-plus hours.
Decisive Climbs and Where the Race Is Won or Lost
Two sections define this race. The climb into Tofov Graben — arriving at 1,942 m after already covering 76 km — is the highest point in terms of effort as well as altitude. The approach rises from the Stol summit area at 1,220 m (67 km), meaning runners must gain roughly 700 m of vertical in under 10 km deep into the night or early morning, depending on their pace. Legs that were pushed too hard through the runnable early ridges will crack here. The second crux is the descent sequence from Golica/Klek ridge (1,703 m at 83 km) down toward the Mojstrana valley floor and then the long run-out to Gozd Martuljek (700 m at 106 km). This is where the race is either made or surrendered: runners who arrive at the Podhom/Dovje crew point (95 km) with reserves intact can close strongly; those who have overcooked the first 70 km will simply be managing survival to the finish line in Kranjska Gora.
How to Pace and Fuel It
The single most important tactical decision in this race is treating the first half — particularly the smooth, forest-trail running through Jelovica and Ratitovec — as a deposit rather than a withdrawal. Going through Žirovnica (56 km) feeling almost social, holding something back, is not a failure of ambition; it is the strategy that funds a strong finish. The Žirovnica crew point at 56 km is the first opportunity to resupply comprehensively, so arrive with a clear fueling plan and execute it efficiently. From Tofov Graben onward, conditions turn more demanding and crew access disappears until Podhom/Dovje at 95 km — a 28 km self-supported stretch across the most exposed terrain on the course. Carry sufficient calories and fluid for that gap. In the closing 30 km, break the remaining distance into short mental segments rather than fixating on the full distance remaining; 'two more aid stations and I'm done' is a far more manageable frame than '30 km to go.' Trust that a conservative early pace has built the closing speed you need.
Conditions to Expect
The Julian Alps are an alpine environment in every meaningful sense. Even in the summer racing window, temperatures at the Tofov Graben high point (1,942 m) can be significantly cooler than valley temperatures at the start in Radovljica (493 m), and exposed ridge sections such as Golica/Klek (1,703 m) are vulnerable to wind and afternoon thunderstorms common in the region. Valley sections can be warm and humid, particularly in the first 30 km, and runners should not be fooled into under-dressing by a warm start — conditions change rapidly with elevation gain. The point-to-point format means weather can vary considerably from start to finish, and the 29-hour window means the majority of the field will be moving through the technical upper terrain in darkness. A reliable headtorch with a spare, and layers adequate for 2,000 m of alpine exposure in potentially wet and windy conditions, are non-negotiable kit items.
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Checkpoints & cut-offs
✓ Course data verified against the official source (2026-07-05) · official source
0 km · 492 m · —
11.8 km · 721 m · —
20.7 km · 638 m · —
27.4 km · 485 m · —
46.1 km · 480 m · Sat 07:30
59.9 km · 554 m · Sat 10:30
72.5 km · 1432 m · —
77.4 km · 2166 m · —
89.5 km · 1440 m · Sat 21:00
106.2 km · 710 m · Sat 23:30
117.1 km · 752 m · —
124.5 km · 814 m · Sun 05:00
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