FlatRock
September 26th 2026
Independence, KS
50 KM
The history behind these races is immense with FlatRock being the first and oldest trail ultra in Kansas!! Epic races such as the 2017 flood year have become the stuff of legend and lore! This is a must run trail. Come see this unique aspect of Kansas like you have never experienced it.
This technical, primarily single-track trail goes out and back along the Elk River Hiking Trail. It is an accurately measured forest trail winding through unique limestone bluffs, rock formations, and picturesque vistas. The cut-off time for all distances is 5:30 PM.
Upcoming Races
Sep 26 2026
50 KM
2,000
2,000
ft.
Out and Back
9 Aid
Stations
12:00 Cutoff
3
Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
3
Surface Rating
Some rocks, root, and/or ruts
Additional Distances
This event also has the following sub ultra distances
25 KM
5 KM
12 KM
Results
50 KM
| Date | Finishers | Top Result (F) | Top Result (M) |
|---|---|---|---|
| 09/27/25 | 32 | 7:45:03 | 4:49:04 |
| 09/28/24 | 42 | 6:25:23 | 5:23:11 |
| 09/23/23 | 50 | 7:28:20 | 5:20:27 |
| 09/24/22 | 47 | 6:26:12 | 5:00:36 |
| 09/25/21 | 67 | 6:33:02 | 4:03:05 |
| 09/26/20 | Race Cancelled | ||
| 09/28/19 | 104 | 7:05:50 | 5:19:47 |
| 09/29/18 | 73 | 5:36:49 | 4:08:12 |
| 09/30/17 | 74 | 5:50:23 | 4:46:19 |
| 09/24/16 | 55 | 6:45:08 | 5:02:49 |
101 KM
| Date | Finishers | Top Result (F) | Top Result (M) |
|---|---|---|---|
| 09/23/23 | No Ultra Finishers | ||
| 09/24/22 | 6 | 22:51:02 | 15:33:44 |