The races take place on the Switchgrass Mountain Bike Trail at Wilson State Park, offering an exhilarating experience on a rugged single track with minimal wooded areas. Participants enjoy scenic views of Wilson State Park and Wilson Lake, enhancing the thrill of the race. The courses consist of 20-mile loops, with longer distances entailing multiple laps, making it a worthy addition to Kansas's ultra-events. Switchgrass is dedicated solely to trail running, and to ensure a smooth start, runners will commence half a mile from the trailhead. After that point, it's pure trail adventures. With its challenging terrain and breathtaking landscapes, this event promises a memorable journey through the heart of nature.
100K
Oct 30, 2026 (Fri)
Distance
100 km
Terrain
Trail
Course
Multiple loops
Difficulty
Intermediate
Course record (M)
8:51:11
Course record (F)
14:06:05
100K
Oct 31, 2026 (Sat) - 06:30
Distance
100 km
Terrain
Trail
Entry fee
$195
100mi
Oct 30, 2026 (Fri)
Distance
100 mi
Terrain
Trail
Course
Multiple loops
Difficulty
Hard
Course record (M)
19:46:57
Course record (F)
25:46:32
100mi
Oct 31, 2026 (Sat) - 06:00
Distance
100 mi
Terrain
Trail
Entry fee
$240
140mi
Oct 30, 2026 (Fri)
Distance
140 mi
Terrain
Trail
Course
Multiple loops
Difficulty
Hard
Course record (M)
43:48:11
Course record (F)
2d 0:11:16
Temperature
51°F / 72°F
Feels like
46°F / 67°F
Avg sunshine hours
9h 22m
Avg rainfall
0.04 in
Avg snowfall
-
Max wind speed
14.3 mph (Moderate breeze)
Sweat loss rate
Moderate
Trail conditions
Firm and dry