2025 - Colorado River Run 100 Mile • 50 Mile • 50K • Marathon • Half Marathon • 10K • 5K
2025 distances
Trail running
100 Mile Run
50 Mile Run
50K
Marathon
https://fitfoundation.org/colorado-river-run-1
Running
1/2 Marathon
https://fitfoundation.org/colorado-river-run-1
10K
5K Run/Walk Taco Trot
5K Kids
Run or Walk: Kids Free with Parental Accompaniment But Registration Required.
5K Ruck
Required Gear Rucksack: GORUCK Rucker recommended, but any rucksack is acceptable Must have reflective elements for visibility and safety Ruck Plates: Men: 20 lb (9.1 kg) Ruck Plate Women: 10 lb (4.5 kg) Ruck Plate Plates must be placed high in the rucksack, close to your back Additional Gear: Hydration system (water bladder or bottles) Appropriate footwear for trail conditions Weather-appropriate clothing Weight Requirements These weight requirements apply to all events (5K, 10K, and Half Marathon): Men: 20 lbs (9.1 kg) Women: 10 lbs (4.5 kg) Note: These are dry weights. Water, food, and additional gear do not count towards the weight requirement. Weight Verification Weight checks will be conducted at the start and finish of each event For longer events (10K and Half Marathon), additional checks may be performed during the course Participants must maintain the required weight throughout the entire event Additional Notes While GORUCK Ruck Plates are recommended, equivalent weights (e.g. weight vest plates) are acceptable as long as they meet the weight requirement and can be secured high in the rucksack. Safety is paramount. Ensure your ruck is properly packed and weighted to avoid injury.
Race-day weather
Conditions on November 28, 2025 — historical Open-Meteo data.
The sun rises at 7:10 AM and sets at 5:31 PM local time (CST) in Marble Falls on November 28, 2025 — 10h 21m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
Reviews
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2025 results — Colorado River Run 100 Mile • 50 Mile • 50K • Marathon • Half Marathon • 10K • 5K
116 finishers across 8 distances · leading places in the 100 Mile Run
| Place | Name | Time | Pace |
|---|---|---|---|
| 1 | Jeffrey Bergeron | — | — |
| 2 | Ryan Brown | — | — |
| 3 | Aiden Panter | — | — |
Every finisher is on the results page, filterable by distance, gender and age group.
Other races near Marble Falls
Different organizers, within 40 miles, in the next three months
Fields of Gold 50K • Marathon • Half Marathon • 12 Hour • 1 Hour • 10K • 5K
Summit Backyard Ultra (Last Person Standing)
Meadowlakes Turkey Trot
Colorado River Run 100 Mile • 50 Mile • 50K • Marathon • Half Marathon • 10K • 5K
🏃 Plan Your Next Race in Marble Falls
Find upcoming events by distance:
- Marble Falls 5K Races 5 races
- 10K Run Events in Marble Falls 3 races
- Marble Falls Half Marathons 4 races
- Marathons in Marble Falls 3 races
- Marble Falls Running Calendar 2026 6 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 9 Marble Falls events
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