Welcome to the 8th year of our event at the beautiful Dinosaur Valley State Park in Glen Rose, Texas. The Active Joe brought North Texas its first 100 miler, and we continue to grow every year! We offer 5 distances so there's a challenge for every interest level.

In all these distances, you’ll be among other amazing athletes challenging themselves. There are lots of gradual up and downhills that add up, and a mix of terrain between soft dirt, rocks, and roots. Some parts are technical while other parts are super runnable. This is a pretty hilly 100 miler by Texas standards, and the terrain can trip you up as you fatigue. Use that first loop through the course to settle into a pace for the race and not go out too fast.

Upcoming Races

Nov 22 2025
50 KM
3 10.5-mi loops
2,900 2,900 ft.
Multiple Loop Course
10 Aid Stations
3 Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts
Nov 22 2025
100 KM
6 10.5-mi loops
5,700 5,700 ft.
Multiple Loop Course
20 Aid Stations
3 Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts
Nov 22 2025
100 Miles
5 mile + (9) 10.5-mi loops
9,000 9,000 ft.
Multiple Loop Course
30 Aid Stations
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 Miles

Results

Date Finishers Top Result (M) Top Result (F)
11/23/24 61 6:30:28 6:00:08
11/18/23 83 4:42:57 6:21:01
11/19/22 95 4:56:56 5:44:04
11/20/21 62 4:22:44 5:59:47
11/21/20 49 4:59:22 6:29:28
11/23/19 44 4:31:24 6:05:21
12/02/18 29 4:53:31 6:17:20
11/05/17 13 5:47:47 7:31:13
Date Finishers Top Result (M) Top Result (F)
11/23/24 235 11:14:19 11:01:01
11/18/23 145 10:34:04 13:08:51
11/19/22 78 11:35:58 12:01:01
11/20/21 28 12:13:19 12:41:18
11/21/20 23 13:33:38 15:49:23
11/23/19 21 11:58:42 14:10:29
12/01/18 14 13:46:47 19:06:02
11/04/17 17 15:18:54 13:54:08
Date Finishers Top Result (M) Top Result (F)
11/23/24 65 20:52:12 19:40:30
11/18/23 52 21:25:55 22:48:01
11/19/22 51 19:46:45 22:58:04
11/20/21 27 21:14:17 23:28:52
11/21/20 38 23:49:47 25:36:36
11/23/19 6 24:44:25 28:46:54
12/01/18 9 21:27:27 25:48:24
11/04/17 9 23:35:47 31:33:15

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