Jemez Mountain

May 9th 2026
Los Alamos, NM
50 KM | 50 Miles

The Jemez Mountains Trail Runs has gained a reputation as a very difficult course. The course is on technical trails with a substantial amount of elevation change. The 50k and 50 mile events include extremely steep climbs and descents on very technical terrain. On the course, runners will experience high altitude (from 7,000 to over 10,000 feet above sea level), fallen trees, and other obstacles. In past years, runners have experienced weather extremes including heat, cold, rain, hail, snow, extreme lightning and wind. Runners are encouraged to consider their comfort level on this type of terrain and weather before registering. All course will remain the same as since 2021. In 2021 the 50 mile course route was 2 miles longer than previous years (~53 miles).

Upcoming Races

May 9 2026
50 KM
5,869 5,869 ft.
Single Loop
4 Elevation Rating
Very hilly, ~7500-12,500 feet in 50 miles
4 Surface Rating
Substantial rocks, roots and/or ruts
May 9 2026
50 Miles
2021+
Single Loop
4 Elevation Rating
Very hilly, ~7500-12,500 feet in 50 miles
4 Surface Rating
Substantial rocks, roots and/or ruts

Results

50 Miles 2021+

Date Finishers Top Result (M) Top Result (F)
05/10/25 56 8:49:37 11:52:52
05/11/24 23 9:28:16 10:56:40
05/20/23 57 8:20:54 10:10:41
05/21/22 Race Cancelled
05/22/21 41 10:28:15 11:21:07
Date Finishers Top Result (M) Top Result (F)
05/10/25 181 5:08:17 5:30:55
05/11/24 160 4:53:47 5:55:30
05/20/23 147 5:03:59 5:57:05
05/21/22 Race Cancelled
05/22/21 90 4:38:51 5:09:26
05/23/20 Race Cancelled
05/25/19 198 4:41:39 5:18:38
05/19/18 243 4:31:39 5:09:33
05/20/17 197 4:59:08 5:38:26
05/21/16 175 5:09:14 5:46:15
05/23/15 159 4:45:00 5:42:13
05/24/14 158 4:57:41 6:20:49
05/25/13 195 4:50:25 5:44:16
05/19/12 144 4:28:30 5:50:59
05/21/11 148 5:44:36 6:23:45
05/22/10 152 5:29:11 6:08:43
05/16/09 96 5:25:33 5:31:53
05/17/08 70 5:38:17 6:21:07
05/19/07 61 4:55:20 6:51:06
05/20/06 25 5:19:31 6:06:31

50 Miles 2018 Fire restrictions course

Date Finishers Top Result (M) Top Result (F)
05/23/20 Race Cancelled
05/25/19 67 8:32:54 10:27:56
05/19/18 90 7:57:48 9:53:39
Date Finishers Top Result (M) Top Result (F)
05/20/17 87 8:39:15 10:41:44
05/21/16 81 8:37:23 10:32:05
05/23/15 106 8:27:02 10:00:04
05/24/14 20 8:07:07 10:23:53
05/25/13 93 9:04:57 9:15:00
05/19/12 88 9:04:01 9:26:29
05/21/11 118 8:07:45 11:05:22
05/22/10 100 8:26:13 10:32:02
05/16/09 104 9:13:52 10:48:44
05/17/08 92 8:08:15 11:30:22
05/19/07 52 8:09:39 9:33:57
05/20/06 22 9:15:35 14:53:51

Recent Results

Old Tom Backyard
Blumenort, MB - 64 finishers
Backyard
Finger Lakes 50s
Hector, NY - 100 finishers
50 Miles | 50 KM
Limberlost Challenge
Lake of Bays, ON - 43 finishers
56 KM
Big Butt 50k
Lancaster, SC - 25 finishers
50 KM
Rancho Hills Trail Run - Summer
Morgan Hill, CA - 4 finishers
50 KM
The Raven 50 Mile Ultra and Relay
Whitehorse, YT - 116 finishers
50 Miles | 50 KM
Midnight Madness
Tulsa, OK - 60 finishers
100 Miles | 50 Miles | 50 KM
Alpenglow 100
Valemount, BC - 204 finishers
100 KM | 60 KM
Red Wing Trail Challenge
Lagrangeville, NY - 21 finishers
60 KM
View All Results