The Tunnel Hill 100 & 50 Mile Runs 2025 return to Vienna, Illinois on November 8, 2025, offering one of the fastest ultramarathon courses in the U.S. on the gently graded Tunnel Hill State Trail. Runners can choose between the iconic 100-mile ultra, the 50-mile race—which also serves as the USATF 50-Mile National Championship—and a marathon distance held on Sunday. The trail features crushed limestone paths, forested stretches, historic trestle bridges, and the landmark Tunnel Hill tunnel, providing both a scenic and performance-friendly environment. Known for producing world records and personal bests, the event offers full aid station support, generous cutoff times, pacer allowances, and coveted finisher rewards such as belt buckles and custom hoodies. With its reputation for top-tier organization, elite competition, and welcoming atmosphere, Tunnel Hill attracts ultrarunners from around the country aiming for serious results or their first 100-mile finish.
Races
100 Miles
50 Miles
Race Date:
08 November, 2025
The Tunnel Hill 100 takes place on Saturday, November 8, 2025, starting at 7:00 AM from Vienna City Park, Vienna, Illinois, and is organized by Durbin Race Management. This ultra features a flat, fast rail‑trail course along the Tunnel Hill State Trail with only ~430 m (1,400 ft) of total elevation gain, making it a prime venue for record-breaking performances.
Weather based on historical averages.
FAQs
What is the Tunnel Hill 100 Miler?
How long is the Tunnel Hill 100 Miler?
Where does the Tunnel Hill 100 Miler take place?
What is the elevation gain of the Tunnel Hill 100 Miler?
How can I prepare for the Tunnel Hill 100 Miler?
How do I choose the right training plan for the Tunnel Hill 100 Miler?
The Tunnel Hill 100 takes place on Saturday, November 8, 2025, starting at 7:00 AM from Vienna City Park, Vienna, Illinois, and is organized by Durbin Race Management. This ultra features a flat, fast rail‑trail course along the Tunnel Hill State Trail with only ~430 m (1,400 ft) of total elevation gain, making it a prime venue for record-breaking performances.
The Tunnel Hill 100 Miler is 160km long.
The Tunnel Hill 100 Miler takes place in Vienna, IL, USA.
The Tunnel Hill 100 Miler elevation gain is 430 metres, which Runna classifies as a Flat race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Tunnel Hill 100 Miler?
The Tunnel Hill 100 takes place on Saturday, November 8, 2025, starting at 7:00 AM from Vienna City Park, Vienna, Illinois, and is organized by Durbin Race Management. This ultra features a flat, fast rail‑trail course along the Tunnel Hill State Trail with only ~430 m (1,400 ft) of total elevation gain, making it a prime venue for record-breaking performances.
How long is the Tunnel Hill 100 Miler?
The Tunnel Hill 100 Miler is 160km long.
Where does the Tunnel Hill 100 Miler take place?
The Tunnel Hill 100 Miler takes place in Vienna, IL, USA.
What is the elevation gain of the Tunnel Hill 100 Miler?
The Tunnel Hill 100 Miler elevation gain is 430 metres, which Runna classifies as a Flat race.
How can I prepare for the Tunnel Hill 100 Miler?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Tunnel Hill 100 Miler?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
More
Sport:
Running
Tags:
Nature
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Tunnel Hill 100 2025 or Durbin Race Management. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Tunnel Hill 100 2025 website.
