When is Tunnel Hill 100?

Tunnel Hill 100 takes place on Nov 14, 2026. That's in 7 months.

Where is Tunnel Hill 100 located?

Tunnel Hill 100 is held in Vienna, Illinois, United States.

What distances are available at Tunnel Hill 100?

Tunnel Hill 100 offers the following distances: 100M, 50M.

What is the typical weather for Tunnel Hill 100?

Based on historical data, you can expect temperatures between 36°F and 58°F on race day. There's approximately a 15% chance of precipitation.

Tunnel Hill 100 (50M-100M) - Nov 14, 2026 | Vienna, IL

The Tunnel Hill 100, set for November 14, 2026, in Vienna, IL, is a celebrated ultra-running event offering distances of 100M, 100K, 50M, and Marathon. This race has earned a global reputation as a remarkably fast course, attracting elite athletes and first-time ultramarathoners alike to chase personal bests and even world records. The 2026 event holds particular prestige as it will host the USATF National Championship for the 50-mile distance, drawing top talent to southern Illinois. Runners can anticipate typical race day conditions with highs around 58°F and lows near 36°F, alongside a 15% chance of precipitation, making for ideal cool-weather running.

The course itself unfolds along the scenic Tunnel Hill State Trail, a former railroad bed characterized by its smooth, unpaved crushed limestone surface, making it largely non-technical with a gentle 2% grade. While generally flat, with approximately 1400 feet of climb over 100 miles, runners will encounter gradual inclines, particularly between miles 32-40 and 80-88 in the 100-mile event. The out-and-back design treats participants to diverse southern Illinois scenery, including lush wetlands, hardwood forests, creeks, picturesque trestles ranging from 34 to 450 feet, and unique rock formations. A standout feature is the historic 600-foot long tunnel, which provides a memorable and thrilling experience, requiring a headlamp for navigation.

Starting and finishing at Vienna City Park, the race is renowned for its excellent production, well-stocked aid stations, and supportive volunteers who are crucial on this multi-loop course. Drop bag access is convenient at key locations including Karnak, Vienna, and Tunnel Hill, ensuring runners have frequent opportunities for resupply. Reviews consistently highlight the welcoming atmosphere, the quality of the race swag including unique buckles, and the overall efficiency of the event, making Tunnel Hill 100 an exceptional choice for those seeking a fast ultra experience or a strong finish in a national championship setting.