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Vitosha 100KM  100 km trail running route — Bulgaria · Sofia City Province

Bulgaria · Sofia City Province

Vitosha 100KM: la carrera clasificatoria UTMB de la montaña de Sofía — salida a medianoche, dorsal de 40 € y más de 700 finishers

Datos clave

Distancia

100 km

Fecha

Precio de inscripción

40 EUR

€ / km

€0.40

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Bulgaria´s classic 100km: City-close logistics, local vibes, and an affordable entry in an ode to Vitosha, the mountain that birthed the local trail running scene.

Vitosha 100KM is a loop ultra circumnavigating Vitosha Mountain from Vladaya, starting at midnight on June 27, 2026. The course covers 100 km with 2,490 m of gain (~25 m/km) through Vitosha National Park immediately south of Sofia, Bulgaria. With 41.7% flat terrain, a 5.89% distance-weighted average uphill gradient, and barely 0.3 km above 20% incline, this is one of the most runnable 100kms in the DTR database — designed for volume and inclusive participation. Entry costs €40 (€0.40/km, subject to 2026 confirmation) — likely among the cheapest UTMB-indexed 100kms in Europe. Sofia airport (SOF) is 31 minutes away. ~726 finishers in 2025. The midnight start gives a cooler first half; the back section runs into full June sun (26–34°C), making heat management the primary race challenge. UTMB Index certified; ITRA certified. Heritage back to 1983; ultra trail format since 2005.

Elevación y Terreno

Metros totales

2,490m

D+/KM

24.9m/km

Como referencia, el circuito Tor des Géants de 330 km tiene 73 D+/km.

Pendiente media de subida

5.9%

Pendiente media de bajada

-6.6%

Distribución del gradiente de subida

Gradient bandDistributionDistance (km)
2–5%
15.5 km
5–10%
12.4 km
10–15%
2.3 km
15–20%
0.6 km
20%+
0.3 km

Perfil de ruta

Analysed

Desglose del terreno

ColourShareDirection
30.9%Subida
41.7%Llano
27.4%Bajada

Terreno

Pre-Alpine

Ascensos

Vitosha 100KM  climbs and descents profile

Principales ascensos

Vitosha 100KM 100 km — top climbs (GPX-derived, analysed 2026-05-02)
RankLengthElevation gainStart kmAverage gradientMax gradient
1

13.6 km · 434 m gain

starts km 35 · avg 3.2% · max 13.4%

2

6.9 km · 389 m gain

starts km 1 · avg 5.7% · max 16.7%

3

9.6 km · 335 m gain

starts km 59 · avg 3.5% · max 53.2%

Principales descensos

Vitosha 100KM 100 km — top descents (GPX-derived, analysed 2026-05-02)
RankLengthElevation dropStart kmAverage gradientMax gradient
1

5.9 km · 271 m drop

starts km 87 · avg -4.6% · max -23.8%

2

6.5 km · 228 m drop

starts km 94 · avg -3.5% · max -16.8%

3

4.5 km · 206 m drop

starts km 55 · avg -5% · max -42.6%

Vitosha 100KM: la carrera clasificatoria UTMB de la montaña de Sofía — salida a medianoche, dorsal de 40 € y más de 700 finishers

¿Hasta qué punto es corrible la Vitosha 100KM? 25m/km, pendiente media del 5,89 % y un calor que decide la carrera

P: ¿Qué dificultad tiene la Vitosha 100KM? | R: Es moderada para los estándares de 100km. Suma 2.490m D+ —unos 25m/km—, tiene un 41,7 % de terreno llano y apenas 0,3km por encima del 20 %. Las pendientes medias ponderadas son del 5,89 % en subida y del 6,57 % en bajada. El reto principal no es la técnica, sino mantener el esfuerzo con el calor de finales de junio: durante las horas de luz se alcanzan 26-34 °C y corredores con experiencia han consumido unos 10 litros de líquido.

Perfil del recorrido: vuelta nocturna a Vitosha, subida de 434m en el km 35, amanecer en la montaña y examen de calor en la segunda mitad

P: ¿La Vitosha 100KM sirve para clasificarse para UTMB? | R: Sí. La prueba figura con UTMB Index como Ultra-Trail® Vitosha y cuenta con certificación ITRA. Consulta utmb.world/utmb-index/races/1127 o itra.run para conocer los puntos vigentes de 2026 antes de inscribirte.

0,40 € por kilómetro para una carrera de 100km con UTMB Index en Europa del Este

P: ¿Cuánto cuesta la Vitosha 100KM? | R: 40 € —0,40 €/km— según el precio de 2025, pendiente de confirmación para 2026. Las notas de Mae indican que la tarifa oficial de 2026 debe verificarse en vitosha100km.bg/registration. Si se mantiene, será una de las carreras de 100km con UTMB Index más asequibles de Europa.

Cómo llegar a la Vitosha 100KM: aeropuerto de Sofía, alojamiento urbano y una logística muy sencilla

P: ¿Qué aeropuerto conviene utilizar para la Vitosha 100KM? | R: El aeropuerto internacional de Sofía (SOF), a unos 31 minutos de la salida en Vladaya. El transporte público de Sofía es bueno, aunque el acceso final puede requerir un taxi corto o un traslado. La ciudad ofrece abundante alojamiento en todas las gamas de precio.

Archivos de carrera

Logística

Aeropuerto más cercano

Sofia (SOF)

Notas

Start: ~20–45 min (taxi/metro+taxi) / Public transport: strong in Sofia; start/finish access may need taxi/shuttle / Accommodation: very easy (Sofia hotels/apartments); book early for race weekend

Runner Voice

Real conversations with race participants

Lambrin Cholakov · Ran in 2025 · 14:05:02 · ITRA 491

Summary

It's the biggest ultra race in Bulgaria and it is in the backyard of the capital, so it is really well organized with plenty of aid stations and you can really feel the support of the crowd in those places. *No bears too* You need to be prepared for this long distance event obviously. You know for such events how important it is stay mentally strong for 10-20 hours. I would say it's not super technical, but the terrain changes constantly

Technicality: I don't really have a big database for comparison, but I can say it's very runnable. I'm not super experienced in long ultras, but I've seen way more technical segments on shorter races. I believe Vitosha 100 can be great for complete newbies in the mountain trail running, of course if they're prepared for its duration. I suspect that some segments of the race may become really difficult in case of rain or challenging weather conditions. As it starts at midnight, foggy weather for instance can cause troubles finding the right path, also a drizzle or low temperatures during the night can really make the experience quite uncomfortable.
Shoes / poles / pack: It's totally ok if you don't use poles. It's well runnable the whole time.
Aid Stations: The aid stations are great. I like to take my own gels, so not really sure if there are gels on the stations, but there's definitely a variety of foods, snacks and drinks.
Views and Vibes: The crowd vibe is great! I only ran it once (last year) and I'm making sure to include it in my race calendar for every year to follow.
Logistics: Couldn't be easier. It's starting and ending in Sofia. We didn't go at the start really early and still managed to find a parking spot. Going by public transport should also be fine.
What surprised them: I think all the info on the official website got me prepared enough and set the right expectations. The 1 thing that really caught me offguard was the dust. Last year it was really a nice & dry weather and it was dry the weeks before the event and as there were more than 1000+ participants there was a constant cloud of dust caused by the people, especially in the first half of the race since the runners are more packed, and on the forest ascents. A big part of the race is on singletracks in the forest.
One Tip for Runners: I don't think there was something I was missing during the race from my basic equipment. Make sure to bring a wind-protection layer and if you are not planning to push hard in the first half - possible some additional thermal layer, as it can get really cold at around km 30 (it was around 4am and I remember we were passing close to the Studena dam and my hands were freezing). I'd suggest to bring more than 1 buff as you can use it as head or neck warmer but also as gloves if needed. Runners need to make themselves aware of the mountain marking, as there are big parts of the race with no race specific marks, but using the regular mountain path marks. However, to get lost in this event, you really need to put in some effort- there's plenty of people running it and also the track is following the most common (and probably biggest) mountain paths/ways. If you are a beginner in ultra racing I'd definitely recommend this one. It's also good as a very first event.

Data provenance

Última verificación: March 27, 2026Sitio oficial →

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