The official SIMM website is written in German language. We try to translate as much content as possible but the valid is always the German version. (Help for translation is very welcome!)

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2019 Gold-Sponsor

2019 Silber-Sponsor

2019 Silber-Sponsor

2019 Silber-Sponsor

2019 Bronze-Sponsor

2019 Bronze-Sponsor

Swiss International Mountain Marathon 2019

The SIMM 2019 will take place a week later than usual because of the Swiss O-Week in Gstaad. Book the weekend 17th - 18th August 2019 today.

The venue for 2019 is Schwarzsee, Canton of Friborg. 

The registration portal is open from Friday, 1 February. Attention: There are hardly any hotels in the Schwarzsee area (exept a camping place). If you would like to arrive on Friday, you should check in our registration portal "with overnight stay" (dinner, overnight stay, morning meal). In the campus Schwarzsee only group registrations are possible. 

Early bird discount: Those who have registered until 28.02.2019 only have to pay Fr. 120.-. 

Club Rebate: We reward collective enrollment by clubs by redeeming one entry fee per 6 started teams (5 for 6).

OK SIMM - Swiss International Mountain Marathon



Quick Introduction to the Race

The SIMM (Swiss International Mountain Marathon) is THE race for orienteer's, runners, outdoor lovers, adventurers, walkers and hikers, in teams of two, with a friend or  our family. In short, it’s for thinking mountain-loving sportspeople!

The route between the controls is entirely up to you, with the help of your compass and map. As well as your food and compulsory safety material, you also need to carry for the whole distance all your equipment for the overnight camp at the end of the first day.

For competent map readers, there are three different courses on the Orienteering Marathon. The two Trail Marathon categories (long and short) are technically easier as they will end to follow footpaths, so you only need a more basic understanding of map reading.

Supporters Club and Volunteers.

Supporters Club and Volunteers.

For the last 43 years, the SIMM has been organised by the dream-team of OK Mountain Marathon. This organisation currently has 17 members and honorary members.

At our yearly meeting in February 2018 we decided to create a new category of membership, that of supporter. For a minimum yearly donation of 25.- these members can help support the event and in return will have their names published on the event website. The membership starts when you download the form and pay the membership fee.

Or perhaps you could also help us with our website and social media marketing? And of course we are always looking out for volunteers before and during the race weekend. If you are unable to run but would like to still be part of the event, please send an email to We are actively looking for help throughout the year, in the week running up to the event and also during the race itself.