Drozdův lesní běh is a short cross-country trail race in Kolín, Central Bohemia, Czech Republic. The main race is 4.2 km, also known as “Pětka,” starting and finishing at the Mirka Tuček athletics stadium. The entry fee is lower in advance than on race day, and registration closes shortly before the start.
The course has minimal climbing, making it a quick local cross-country run rather than a mountain-style trail race. T.J. Sokol Kolín athletics organizes it, with Václav Miler as the contact. The event includes children’s races on the stadium track, and the organizer states Drozdův lesní běh is one of the oldest cross-country runs globally.