21 kilometres, 601 metres of elevation gain and 1000 participants: these are the characteristic numbers of the 13th Seiser Alm Half Marathon on 5 July 2026. The starter's gun for the running event with start and finish in Compaccio is fired at 09.00 a.m. Surrounded by the Dolomites UNESCO World Heritage, the Seiser Alm Half Marathon is a unique experience and sporting challenge for both professional and amateur athletes.
THE SEISER ALM HALF MARATHON AND THE "JUST FOR FUN RUN" ARE ALREADY FULLY BOOKED! IT IS STILL POSSIBLE TO JOIN THE WAITLIST FOR BOTH EVENTS.
NEW 2026: Registration for the children’s run for ages 5–14 is open now!
![seiser-alm-logo-half-marathon-4c[2]](/media/400_x_141/7367250a-57cf-4eff-896f-ccf6fdcd647e/seiser-alm-logo-half-marathon-4c-2.png)