FlatRock 101 is BACK!!!

NEW FOR 2021: Spring FlatRock 50K and 25K!

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 series. Come see this unique aspect of Kansas like you have never experience it!

2021 FlatRock Triple Crown Series

The FlatRock Triple Crown will once again be held for those runners looking for some real punishment on this legendary course! For those willing and able to finish all three races (WinterRock 25K, Flatrock 50K and the Flatrock 101K) you will receive a special award at the end of your 176K journey that will definitely be worth all of the punishment.

WinterRock 25K/12K January 2nd 2021
FlatRock 101K/50K/25K April 24th 2021
FlatRock 50K/25K September 25th 2021

Upcoming Races

Apr 24 2021
50 KM
3 Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
4 Surface Rating
Substantial rocks, roots and/or ruts
Apr 24 2021
101 KM
Double out-and-back
Multiple Loop Course
19 Aid Stations
24 :00 Cutoff
4 Elevation Rating
Very hilly, ~7500-12,500 feet in 50 miles
5 Surface Rating
Very rough trail

Results

101 KM View course top times

Date Finishers Top Result Top Result (F)
04/28/18 32 11:02:33 13:31:27
04/29/17 12 12:06:20 16:56:42
04/30/16 26 13:06:15 16:39:02
04/25/15 32 12:41:02 13:54:22
04/26/14 21 12:44:22 15:36:14
04/27/13 33 12:07:59 15:16:35

50 KM View course top times

Date Finishers Top Result Top Result (F)
09/26/15 114 4:51:36 6:03:36
09/27/14 106 4:57:11 5:41:42
09/28/13 93 4:49:15 5:42:57
09/29/12 89 4:47:17 6:25:38
09/24/11 55 4:12:58 6:09:32
09/25/10 40 4:49:35 6:41:42
09/26/09 44 4:31:40 7:35:03
09/27/08 34 4:59:23 5:53:17
09/29/07 30 5:21:28 6:52:35
09/30/06 28 4:29:21 6:25:55
09/24/05 33 4:46:44 6:27:29
09/25/04 33 4:59:17 6:18:07
09/27/03 36 4:57:25 6:29:07
09/28/02 23 5:07:34 5:55:17
09/29/01 31 4:47:12 6:23:10
09/30/00 38 6:05:59 5:49:48
09/25/99 40 4:54:33 6:16:03
09/26/98 34 5:04:23 6:11:49
09/27/97 30 5:05:54 5:51:31
09/28/96 24 5:11:12 7:40:09
09/30/95 20 5:43:52 5:57:15
We try to keep the most accurate information about this race, but changes do happen. Always visit the official race website for the most up to date information.
Lake Murray Endurance Run
  • Oct 24, 2020
  • Ardmore, OK
50 KM 100 KM 100 Miles