Prairie On Fire Backyard Ultra
Noblesville, United States • 12 Sep 2026
Prairie On Fire Backyard Ultra - Noblesville, IN
Prairie On Fire Backyard Ultra is the fifth annual Backyard Ultra held in Noblesville, Indiana on Sept 12, 2026. Organizers are MTC and Hamilton County parks. The event takes place at White River Campground and uses nearby Koteewi Park and E 234th Street for the course.
The race uses the Backyard Ultra format: runners must complete a 4.167 mile loop within each hour to continue. Runners who finish a loop may start the next loop; the process repeats until only one runner remains. The 2026 course follows the same or very similar layout as the previous year.
Distances and course types:
- 4.167 mi dirt and gravel loop through Koteewi Park
- 4.167 mi paved out and back along E 234th Street
In 2025 more than 20 runners exceeded 100 miles at this event, and organizers note planned improvements to the runner experience for 2026. Visit the organization's website for the most recent information.