Tunnel Hill 100 Mile
Tunnel Hill 100 Mile uses the flat, fast Tunnel Hill State Trail in southern Illinois, a course known for elite times and record attempts each November.
Quick facts
- Fast rail-trail course from Vienna City Park
- Hundred-mile race with a record-setting history
- Separate 100-mile scoring from 50-mile and marathon races
- Smooth surface and gentle grades favor even splits
Is registration open for the 2026 Tunnel Hill 100 Mile?
Registration for the 2026 Tunnel Hill 100 Mile is open.
About the Tunnel Hill 100 Mile
Tunnel Hill is a performance-focused 100-mile trail race held from Vienna City Park. Its smooth rail-trail surface and deep history of fast marks make it unusually searchable among American ultras.
Course
The course uses out-and-back rail-trail segments through southern Illinois, including the namesake tunnel. Gentle grades and smooth footing favor even splits, but repetition and cold night miles test focus.
Race-day weather
Mid-November in southern Illinois can be crisp and fast, but frost, cold rain, wind or a warm afternoon are all possible during a 100-mile finish window.
Past Tunnel Hill 100 Mile dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2026 | Saturday, November 14, 2026 | Upcoming | — |
| 2025 | — | Completed | Open results |
Tunnel Hill 100 Mile FAQ
When is the Tunnel Hill 100 Mile?
The 2026 Tunnel Hill 100 Mile is on Saturday, November 14, 2026.
Is registration open for the 2026 Tunnel Hill 100 Mile?
Registration for the 2026 Tunnel Hill 100 Mile is open. View the official registration details at ultrasignup.com.
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