Swiss International Mountain Marathon

core team

Gérard Baumgartner

President / leader

Gérard Baumgartner has been a member of the team since 1998. For years he helped as a passionate mountain hiker during the preparation week and during the race. Since 2014 he is also active throughout the year, 2016 he has taken over the lead as president.

Dieter wolf

Course setter

Dieter Wolf is again this year course setter at SIMM: No coincidence!

It was he, for the first time, who organized this form of competition 1976 in Switzerland and founded a now 45 tradition. As an active orienteering rider since his youth - and with an unbroken enthusiasm as a H70 competitor - he has experience as a train operator, organizer, card taker and coach. He is aware of the responsibility, especially on this challenging occasion, the Mountain Marathon with two daily stages and camp overnight, to tailor the courses with their specific requirements to the individual categories.

He operates under from his residence Davos an outdoor service, guides tours and walks in all seasons and organizes events.

Marco Braun

Marco Braun knows the SIMM as a participant, as well as for several years as a leader. Marco is very close to SIMM. Thus, despite high occupational demands, he is happy to take on the Finance department on the Management Board.

Thomas Wiesner


Thomas Wiesner is responsible for the safety of our teams. He determines at which posts helpers with radio are present during the run. These can be alerted in an accident and also there is checked whether all teams pass the post by two.

Daniel Vonwiller

Course setter

Daniel Vonwiller, who has been an enthusiastic participant in the SIMM for many years, supports the course setter Dieter Wolf and is involved in the general organization of the event. His great competition pictures help our approach to medial attention.

Martin Gassner


Martin Gassner is responsible for sponsoring and marketing with Sepp Zahner.

Sepp Zahner


Sepp Zahner makes valuable contacts with our sponsors, who help us with our support.



The official website of SIMM is in German. We strive to translate as much content as possible and make it available in English / Français / Italiano, but the German version is always valid!


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


Le site officiel de SIMM est en allemand. Nous nous efforçons de traduire le plus de contenu possible et de le rendre disponible en anglais / français / italy, ma la estonie est toujours valable.


Il sito web ufficiale della SIMM è scritto in Tedesco. Cerchiamo di tradurre contenuti al massimo possibile la la versione valida è semper quella in Tedesco.

  • Swiss International Mountain Marathon
  • Gérard Baumgartner
  • Brunnmattstrasse 11
  • CH-3266 Wiler
  • + 41 (0)79 580 54 53
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