SLO12RUN
1 June 2025
On Sunday, 1 June, Kranj will host the eighth edition of the I FEEL SLOVENIA12RUN running event that attracts the best ultramarathoners and many spectators every year. Among the registered competitors from more than 15 countries, many well-known names from the ultramarathon world will be present, guaranteeing a tough fight for places on the winner’s podium. The entire Croatian ultramarathon team will also be among the participants, adding even more excitement to this already prestigious race.
The 12-hour race has been awarded the International Ultramarathon Association (IAU) Gold Label for the second time, which proves its high level and international reputation. The 6-hour version of the event has been awarded the IAU Bronze Label, which further confirms the quality of the event.
More information and registration is available HERE.
This year’s edition is enriched by the new international system of ultra-running disciplines, which brings together the best ultra runs in the region (Slovenia, Croatia, Bosnia and Herzegovina). SLO12RUN will thus be included in the IAU Balkan Express Cup in 2025.
The event will be especially honoured by the visit by the ultramarathon legend, Yiannis Kouros from Greece, and the course will be named after him. Kouros competed together with the Slovenian ultramarathon runner Dušan Mravlje, who left an indelible mark on the world of ultramarathons.
The SLO12RUN is a 12 and 6 hour race, which takes place in the centre of Kranj, in a circle of 1250 metres. A grandstand will be set up in the start-finish area for spectators, so that they will have the opportunity to see the competitors and to cheer them on.
The event is organised by the S12R Athletics Club from Kranj and co-organised by the Culture and Tourism Board Kranj, with the support of the Municipality of Kranj and the Athletics Association of Slovenia (AAS).
The event is taking place in accordance with the principles of sustainable development, and participants are provided with green guidelines for sustainable behaviour.
Registration is now open! Further information and registration is available HERE.
SLO12RUN
1 June 2025
More info about the event in 2025 will be published in the coming months.
The Slovenian 12-Hour Run is the only ultramarathon held in a city centre, in Slovenia and beyond. This year, Kranj will host the fifth edition of the SLO12RUN. Runners will run on a 1292-metre AIMS-certified circular course.
In order to encourage runners who have previously preferred to compete over shorter distances to take part in the race, there will be an opportunity to take part in a 6-hour run.
The organiser is expecting 150 runners from abroad and from Slovenia. This year’s race brings plenty of new features:
- Runners from 15 countries are already on the entry list, including the ultramarathon legend Yiannis Kouros from Greece, Poland’s Patrycja Bereznowska (holder of the women’s record at the Spartathlon) and Ivan Penalba Lopez from Spain;
- The race will count as the 12 Hours National Championship;
- Two outstanding race coordinators: Marko Roblek and Niko Rakovec;
- Spectator stand in the start-finish area;
- Bridge over Tavčar Street to facilitate the passage of pedestrians and cyclists;
- Sports equipment and sports nutrition fair on Saturday, 4 June 2022 and Sunday, 5 June 2022;
- Saturday evening talk with renowned ultramarathoners and other important guests.
For the second time in a row, the Slovenian 12-Hour Run has been awarded the IAU Silver Badge (International Association of Ultrarunners), which proves that it has become an internationally recognised race at the top level. With the desire to attract even more local and international ultra marathon runners to this unique event, we will take the event to the next level. We can guarantee that all the competitors of this year’s Slovenian 12 Hours Run will have an unforgettable running experience in Kranj!
We encourage you to register as soon as possible, as the popularity of the race grows year by year and the number of competitors is limited. Registration is now open on the website.
Raed more about the event here.
The co-organiser of the National Championships is the Culture and Tourism Board Kranj, with the support of the Municipality of Kranj and the Athletics Federation of Slovenia.
