Smithville, TX, United States · Saturday, November 14, 2026

Fixed Distance 50K

Austin Rattler Run 50K

45 days away

50 km Distance

not publishedn/a Climbing

2.5 est Grit · Entry level

Calculated from 50 km alone — the organiser has not published an elevation profile. Read 2.5 as a floor, not a verdict.

30.0085° N, 97.1594° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 8 hours 9:36 min/km average. Comfortable. Room to walk the climbs and stop at aid. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. Tighter than 89% of 50K races. Measured against 1034 races of the same distance. Cut-off calculator →

Field size ~291 Large. Rarely out of sight of another runner.

DUV results for the 2025 edition (50km) — 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 22°C

Night low 10°C

Rainfall Mostly dry

Daylight 10 h 41 m of light

Regional 2001-2020 average for November — NASA POWER, grid elevation 114 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	50km	291	Mitchell Klomp · 03:22:59	Anneke Durkan · 04:11:00
2024	50km	233	Whit Blair · 03:33:53	Ailsa MacDonald · 03:53:13
2023	50km	223	Erik Stanley · 03:20:10	Rachel Tomajczyk · 04:01:40
2022	50km	155	Travis Lavin · 03:26:45	Michele Perez-Lopez · 04:24:06
2021	50km	152	Gunnar Rogers · 03:22:40	Kendall Dinwiddie · 04:02:50
2020	66km	68	Brad Miles · 05:10:38	Vivian Carrasco · 06:43:02
2019	66km	67	Justin Ladner · 05:18:00	Gwen Golaszewski · 07:00:27
2018	66km	81	Tomas Moreno · 04:16:47	Michele Yates · 05:04:05
2017	66km	66	Stephen Wassather · 05:01:24	Michele Yates · 05:42:03
2016	66km	66	Ryan Smith · 04:56:11	Shaheen Sattar · 06:03:15

The field grew 25% between 2024 (233) and 2025 (291). 17% of the 2025 field were women.

DUV results for the 2025 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

The Aid Station

Course-specific beta from the community

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 50 km of trail.

Trail Running Shoes 50 km of trail — cushioning that is still there in the last quarter.
Race Nutrition 50 km of self-supported fuelling between aid stations.
Hydration Vests Flask capacity for 50 km, without the bounce.
GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.

La Sportiva

Prodigio Pro

RunRepeat found the La Sportiva Prodigio Pro to have a secure, locked-in fit due to its premium upper, and also praised the shoe's energetic ride, particularly…

$225 ★★★★★ 4.6

Brooks

Catamount 3

RunRepeat found the Brooks Catamount 3 to have a cozier upper that enhances the overall fit, though breathability and durability could be better. iRunFar noted…

★★★★★ 4.5

Maurten