FlatRock 101K

April 24, 2021
Independence, KS



  hours  minutes  seconds


FlatRock 101K

FlatRock 101 is BACK!!!
NEW FOR 2021: Spring FlatRock 50K and 25K!

Course Description

A double out & back on the gorgeous Elk River Hiking Trail, just outside of Independence, KS. Accurately measured forest trail winding through unique limestone bluffs, rock formations & picturesque vistas. Mostly single-track, very rocky, no long hills.


6:30 AM start; 24-hour time limit. Cutoffs at approximate distances are; 4 hours & 30 minutes at 25K, 10 hours at 50K, 16 hours & 30 minutes at 75K and 24 hours at 101K.

The 50K and 25K cutoffs will be extended for the spring race to coincide with the final cutoff of the 101K (ending at 0630). This will allow some runners to experience the full course without extending volunteer times.

Aid Stations

19 Aid Stations; 11 fully-stocked with water, electrolyte drink & snack-type foods, including soup and sandwiches; 8 aid stations water only. Approximate distance between aid stations is 3.5 miles with no distance greater than 4 miles between aid stations.

Packet Pickup

Packet pick-up is Saturday Morning from 5:30 AM until race start. Race headquarters will be located in the Outlet Channel Group Shelter (Staging Area, north side of the Elk City Lake dam). There are several different ways to get to the Outlet Channel Shelterhouse depending upon which direction you are coming from. Please click on the link below to open a Google Map where you can get specific directions to the Outlet Channel Shelterhouse. If you have never been to FlatRock before we highly recommend allowing a little extra drive time, especially if you plan on driving in the morning of the race.

Map to FlatRock 101K Staging Location


Campsites (with & without electricity) & showers are available near starting line (Army Corps of Engineers/620-336-2741). Motels in Independence are approximately 7 miles away (Independence Chamber of Commerce 620-331-1890).


Complimentary race photos by Mile 90 Photography.