Tunnel Hill 100
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Tunnel Hill 100 - Vienna, IL
Tunnel Hill 100 is a multi-distance running event held on the Tunnel Hill State Trail in Vienna, Illinois. Distances offered include:
- 100 Mile
- 100 km
- 50 Mile (USATF 50 Mile National Championship)
- Marathon
All races start and finish at Vienna City Park and use a smooth crushed limestone rails-to-trail surface. The standard 50 mile loop runs south to the Wetlands Center (about 13.1094 miles), north to a certified northern turnaround (25 miles), and back to Vienna for a certified 50 mile finish; the 100 mile repeats this loop. The 100 km uses the same course with a certified 100 km turnaround. The trail includes multiple trestles and a notable tunnel; runners pass the tunnel multiple times depending on distance.
Time limits are 30 hours for the 100 mile, 100 km, and 50 mile races. 100 mile runners must begin the second 50 in under 15 hours to remain eligible for a 100 mile finish. Pacers are allowed under specified rules; athletes pursuing American records may not use pacers. Shoes must comply with IAU standards regarding sole thickness and carbon plates.
Aid stations provide basic and hot food, limited cups, and water; runners are encouraged to carry personal containers. Drop bag size is limited to roughly 10" x 10" x 18". There are no refunds or bib transfers. Tent camping is allowed at Vienna Park; RV camping is not permitted there. Prize money and record bonuses are published for multiple events and course records. Live tracking and official results are provided for the event. Visit the organization's website for the most recent information.
