The Ultramarsch Dresden / Sächsische Schweiz 100km is a 100 km trail event beginning in Dresden, Germany, with a 24-hour time limit. The loop connects the city with the Saxon Switzerland region and involves approximately 1,210 metres of elevation gain, presenting a demanding walk or run rather than a flat road ultra. Participant numbers are limited to 500, with an entry fee of 89.90 euros.
The course proceeds from Pillnitz via Wehlen, Rathen, Hohnstein, Lohmen, and Dresden, concluding back at Pillnitz. Historical results indicate a small and challenging event, with only 15 finishers recorded in available data, comprising 13 men and 2 women. Recent first-place times average around 13 hours 40 minutes for men and just over 16 hours for women, reflecting the course's difficulty.