Glen Rose, TX, United States · Saturday, November 21, 2026

Fixed Distance 100K

Dinosaur Valley Endurance Run 100 Km

46 days away

100 km Distance

not publishedn/a Climbing

5.0 est Grit · Challenging

Calculated from 100 km alone — the organiser has not published an elevation profile. Read 5.0 as a floor, not a verdict.

32.2346° N, 97.7553° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Field size ~172 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2025 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, November

Daytime high 20°C

Night low 7°C

Rainfall Mostly dry

Daylight 10 h 24 m of light

Regional 2001-2020 average for November — NASA POWER, grid elevation 234 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	100km	172	Meng Zhao · 09:57:50	Laura Arnold · 12:23:38
2024	100km	170	Brad Trexler · 11:14:19	Megan Jackson · 12:40:54
2022	100km	78	Cody Walker · 11:35:58	Jackie Lovelady · 12:01:01
2021	100km	28	Luke Shover · 12:13:19	Alison Miller · 12:41:18
2020	100km	23	Trey Windwehen · 13:33:38	Normandie Scanlon · 15:49:23
2019	100km	21	Christopher Koerner · 11:58:42	Wendy Haney · 14:10:29
2018	100km	14	Mike Dilley · 13:46:47	Carrie Taylor · 19:06:02
2017	100km	17	Zach Allen · 15:18:54	Danieli Rodrigues · 13:54:08
2016	50mi	15	Eloy Gonzalez · 08:49:11	Megan Smyth · 11:33:11

The field has held steady: 170 in 2024, 172 in 2025. 26% of the 2025 field were women.

DUV results for the 2025 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Course notes

gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.
nutrition For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.

Gear for this race

Chosen for 100 km of trail.

Trail Running Shoes 100 km of trail — cushioning that is still there in the last quarter.
Race Nutrition Past 100 km the palate quits before the legs do — carry more than one flavour.
Hydration Vests Flask capacity for 100 km, without the bounce.
Headlamps 100 km almost certainly means running into the night.
Accessories Chafe and blisters end more 100 km races than fitness does.

Adidas

Terrex Agravic Speed Ultra

RunRepeat found the Adidas Terrex Agravic Speed Ultra to be perfect for midfoot and forefoot strikers, while iRunFar noted that the shoe feels incredibly effici…

★★★★★ 4.5

Salomon