The Third Coast Avalon 100, an ultra-marathon trail race held annually in the heart of the U.S., is a testament to human endurance and the allure of the great outdoors. This grueling yet rewarding event, organized by the Third Coast Trail Runners, takes runners on a 100-mile journey through the scenic trails of the U.P. (Upper Peninsula) in Michigan.
What is the Third Coast Avalon 100?
The Third Coast Avalon 100 is a point-to-point race that begins at the beautiful Porcupine Mountains Wilderness State Park and ends at the picturesque Lake Superior shoreline in Ontonagon, Michigan. The course is a challenging mix of single-track trails, two-tracks, and dirt roads, with a total elevation gain of over 15,000 feet.
Why Run the Third Coast Avalon 100?
For many runners, the allure of the Third Coast Avalon 100 lies in its unique combination of challenge and beauty. The race offers:

- Scenic Views: Runners enjoy breathtaking views of the Porcupine Mountains, Lake Superior, and the surrounding wilderness.
- Well-Marked Course: The course is well-marked, ensuring runners stay on track even in the most remote sections.
- Exceptional Aid Stations: Runners can refuel and rehydrate at nine fully-stocked aid stations along the course.
- Community Support: The race is supported by a vibrant community of volunteers and fellow runners who create a welcoming and encouraging atmosphere.
What to Expect: Course Details
The Third Coast Avalon 100 course is known for its varied terrain and challenging climbs. Here's a breakdown of what runners can expect:
| Section | Distance (miles) | Elevation Gain (feet) |
|---|---|---|
| Porcupine Mountains to Lake of the Clouds | 30 | 5,000+ |
| Lake of the Clouds to Lake Superior | 70 | 10,000+ |
The final stretch of the race, from Lake Superior to the finish line, is a rewarding downhill section that runners look forward to after the grueling climbs.
Preparing for the Third Coast Avalon 100
To tackle the Third Coast Avalon 100, runners should have a solid base of trail running experience and be prepared to train on varied terrain. Key aspects of preparation include:

- Mileage: Build up to running 50-60 miles per week, with long runs of 20-30 miles.
- Strength Training: Incorporate strength training exercises to build core and leg strength.
- Nutrition: Practice fueling strategies during long runs to find what works best for you.
- Gear: Invest in quality trail running shoes, a comfortable pack, and other essential gear.
The Third Coast Avalon 100 is more than just a race; it's an immersive experience that connects runners with the natural beauty of the Upper Peninsula. Whether you're a seasoned ultra-runner or a trail enthusiast looking for your next challenge, the Third Coast Avalon 100 is an event not to be missed.