2025 Colorado River Trail Run 100 Mile: Training plans, distance, date, location, and more

Find out all you need to know about the Colorado River Trail Run 100 Mile – including how to choose the best training plan to get race-ready and set a new personal best.

Arial view of the race city.

About the event

The Colorado River Trail Run 100 Mile, set for November 28, 2025, is a grueling yet breathtaking ultra-marathon experience through Arkansas Bend Park in Lago Vista, Texas. Organized by Fit Foundation, this race takes runners through winding singletrack trails, rolling hills, and rocky stretches, all while following the scenic curves of the Colorado River. With strategically placed aid stations and a dedicated support crew, participants will have the resources needed to endure the physical and mental battle of completing 100 miles. Whether you're an ultra veteran chasing a new milestone or a first-timer seeking to conquer an epic distance, this race promises an incredible journey through one of Texas' most stunning natural landscapes.

Date: 

Fri
Nov 28
2025

Location: 

Lago Vista, United States

Distance

161.0km / 100.0mi

Elevation profile: 

Flat

Website: 

Link

Elevation gain: 

nullm /

Number of participants: 

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Start your plan

How to train for Colorado River Trail Run 100 Mile: Colorado River Trail Run 100 Mile training plans for every runner

To train for Colorado River Trail Run, you’ll need a personalized training plan and to build up your weekly mileage progressively.

Runna offers running training plans for every runner and goal out there.

With Runna, your running coaching app, you get a personalized 100 Mile training plan that:

  • Structures your week and sets out all sessions for you
  • Automatically adjusts your mileage and types of runs to help you perform at your best
  • Incorporates deloads and strength training
  • Helps you manage your recovery and nutrition

Having a plan will also help with accountability, meaning that you can focus purely on improving your running game.

Check out our personalized 100 Mile training plans to find the one that best suits your goals.

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Colorado River Trail Run 100 Mile FAQ: All you need to know about the Colorado River Trail Run 100 Mile

What is the Colorado River Trail Run 100 Mile?

Colorado River Trail Run 100 Mile distance: How long is the Colorado River Trail Run 100 Mile?

Where does the Colorado River Trail Run 100 Mile take place?

When is Colorado River Trail Run 100 Mile?

When is the next Colorado River Trail Run 100 Mile?

What’s the elevation gain of the Colorado River Trail Run 100 Mile?

How can I prepare for the 2025 Colorado River Trail Run 100 Mile?

How do I choose the right training plan for the 2025 Colorado River Trail Run 100 Mile?

How can I register for the Colorado River Trail Run 100 Mile?

If you are an official race organiser with any questions about this page, please get in touch: races@runna.com

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