The Moravian Ultramarathon (MUM) is a seven-day stage race in the Czech Republic. Participants run a full marathon each day. The Olešnice stage is the fifth marathon in the series. Organizers state it is part of the longest and hardest running stage race in the country.
This stage begins in front of the cultural center in Olešnice na Moravě and finishes 42.2 km later in Lomnice u Tišnova. The route includes approximately 760 meters of climbing. It passes through villages such as Brťoví, Prosetín, Hodonín, and Černovice. The overall MUM format averages about 900 meters of elevation gain per stage over varied terrain.