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Tunnel Hill 100 & 50 Mile Runs

Vienna, United States • 8 Nov 2025

The Tunnel Hill 100 & 50 Mile Runs, held in Vienna, Illinois, is a premier ultramarathon event featuring both 100-mile and 50-mile races. The course, renowned for its fast and scenic trail, is certified by USATF and recognized by the IAU, making it a popular choice for both first-time and experienced ultrarunners. The event has seen numerous world records set, including the women's 50-mile record by Courtney Olsen. In 2025, the 50-mile race will also serve as the USATF National Championship. Participants can expect well-stocked aid stations, a supportive atmosphere, and opportunities for prize money based on performance. Visit the organization's website for the most recent information.

United States Illinois Vienna

Race information

Website Registration
100 mi
100 Miler
50 mi
50 Miler
Visit the organization's website for the most recent information.
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