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Kansas · Ottawa
Prairie Spirit
Mar 27, 2027(projected)
Founded in 2013, Prairie Spirit Trail 100 runs an out-and-back on the Prairie Spirit Trail State Park rail-trail: 50 miles south from Ottawa, Kansas to Iola, then 50 miles back on crushed limestone and town-section asphalt. The course is essentially flat — a rails-to-trails conversion through small Kansas towns — making it a popular target for first 100-mile attempts and USATF-certified records. The 30-hour cutoff includes a strict 14-hour turnaround at Iola; pacers are allowed for the return half. In 2025, 34 of 51 starters finished the 100-mile distance.
The numbers
Race statistics
- Distance
- 100 mi
- Vertical gain
- 1,500 ft
- Course
- Out & back
- Unique miles
- 50 mi
- Lottery
- No
- Avg finishers
- 37
15 ft / mi
per year
◈ From the runners