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The Trailbreaker Marathon course covers approximately 4 miles of city streets and sidewalks, 15 miles of improved trails (including the Fox River Trail & Glacial Drumlin Trail) and 7 miles of the Ice Age Trail.
Miles ten through sixteen are extremely rugged. Except for the Ice Age Trail, the trail is subject to only gentle grades.
The unique turn-around is at the top of the 40' Lapham Peak Tower.
The Trailbreaker Marathon was the 345th largest marathon in the U.S. last year and was the 411th largest in 2023.
This year 8.1% of finishers qualified for the Boston Marathon and 8.3% of runners qualified for Boston in 2024.
This gives the Trailbreaker Marathon the 208th highest percentage of Boston Marathon qualifiers in the U.S. last year and the 61st highest percentage so far in 2025.
Its Course Score of 98.40 ranks it as the 284th fastest marathon course in the U.S. and the 14th fastest course in Wisconsin.
The typical race time temperature and humidity levels are within the ideal range for optimal marathon performance. This, coupled with the Course Score, gives the Trailbreaker Marathon a PR Score of 98.40. This PR Score ranks it as the 226th fastest marathon in the U.S. and the 9th fastest in Wisconsin.
Learn more about PR Scores and Course Scores on the FAQ page.
Trailbreaker Marathon Elevation Chart
Max Elevation: 1274 feet (388m) Min Elevation: 795 feet (242m)
Hotel & VRBO Accommodations for the Trailbreaker Marathon
View available accomodations around the Trailbreaker Marathon Finish Line and Course. Book your Reservation now before the best places are sold out.
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How Fast Can You Go?
If you ran the Trailbreaker Marathon in 5:22:00, what would your time in other marathons be?
See how your race times would compare on other marathon courses with our time conversion tool.
This is not a fast race. It is not only limited to trails for the most part, but its mid-portion contains a steep climb toward a fire tower at which you must climb 6 flights of stairs to ring a bell to mark your halfway point. But oh my gosh it is fun. The scenery is lovely, the course is very well supported, and the runners are a nice mix of hard-core and those just out to have an adventure. The lack of stress to perform inherent in this run-and-hike course make it an ideal first marathon of the year, and at this price you cannot get a better deal. Sign up!
Race Tips
Go out slow and enjoy yourself. If you must race it, wait until after you've rung the bell.
