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Colorado River Run Marathon, Ultra and Taco Trot

Fri November 28 - Sat November 29, 2025 Lago Vista, TX 78645 US Directions

100 Mile Run

Event Dates:
Friday November 28, 2025 - Saturday November 29, 2025
Start Time:
6:30am CST
End Time:
6:30pm CST
Price:
$120 $100.00 Race Fee + $7.00 SignUp Fee
Registration:
Price increases to $120.00 after July 30, 2025 at 11:59pm CDT

50 Mile Run

Event Dates:
Friday November 28, 2025 - Saturday November 29, 2025
Start Time:
6:30am CST
End Time:
6:30pm CST
Price:
$100 $80.00 Race Fee + $5.80 SignUp Fee
Registration:
Price increases to $100.00 after July 30, 2025 at 11:59pm CDT

Marathon

https://fitfoundation.org/colorado-river-run-1
Event Date:
Saturday November 29, 2025
Start Time:
8:30am CST
End Time:
5:00pm CST
Price:
$80 $70.00 Race Fee + $5.20 SignUp Fee
Registration:
Price increases to $80.00 after July 30, 2025 at 11:59pm CDT

1/2 Marathon

https://fitfoundation.org/colorado-river-run-1
Event Date:
Saturday November 29, 2025
Start Time:
8:30am CST
End Time:
5:00pm CST
Price:
$70 $60.00 Race Fee + $4.60 SignUp Fee
Registration:
Price increases to $70.00 after July 29, 2025 at 11:59pm CDT

5K Run/Walk Taco Trot

Event Date:
Saturday November 29, 2025
Start Time:
8:30am CST
End Time:
5:00pm CST
Price:
$35 $30.00 Race Fee + $2.80 SignUp Fee
Registration:
Price increases to $35.00 after July 29, 2025 at 11:59pm CDT

5K Kids

Run or Walk: Kids Free with Parental Accompaniment But Registration Required.
Open to ages 8 - 17.
Event Date:
Saturday November 29, 2025
Start Time:
8:30am CST
End Time:
5:00pm CST
Price:
$0.00 Race Fee
Registration:
Registration ends November 28, 2025 at 11:59pm CST

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.
Event Date:
Saturday November 29, 2025
Start Time:
8:30am CST
End Time:
5:00pm CST
Price:
$35 $30.00 Race Fee + $2.80 SignUp Fee
Registration:
Price increases to $35.00 after July 29, 2025 at 11:59pm CDT

Pacer Registration (50- and 100-Mile Run)

While we won't be providing official pacing groups for the race due to our size, we enthusiastically welcome personal pacers for both the 50 and 100-Mile events. Personal pacers can join 50 mile participants after the 30 mile mark and 100 Mile runners after the 50 mile mark (approximately halfway points). Each pacer must pay a $15 fee that covers park entry, administrative costs, and an official pacer bib. Pacers need to sign a waiver and wear their designated "PACER" bib while on course. Runners are responsible for arranging their own pacers.

ELIGIBLE EVENTS

100 Mile Run: Pacers allowed after the 50-mile mark
50 Mile Run: Pacers allowed after the 30-mile mark
Marathon and shorter distances: No pacers permitted

PACER REGISTRATION

All pacers must register before joining their runner
Pacers must sign a liability waiver
Pacers must wear the official "PACER" bib at all times while on course
There is a $15 fee per pacer to cover insurance and administrative costs
Pacer registration can be completed in advance online

PACER RULES AND LIMITATIONS

Runners may have only one pacer on the course at any given time
Pacers must be at least 18 years old (16-17 year olds may pace with signed parental consent)
Pacers may be switched at any official aid station
Pacers must check in and out with aid station personnel when entering or leaving with a runner
Pacers must remain with their runner at all times while on course
Pacers must enter and exit the course only at designated aid stations
Pacers are not eligible for aid station support except for water and medical emergencies
Pacers cannot carry supplies or equipment for the runner (muling)
Pacers must have a headlamp/lighting for nighttime pacing
Event Date:
Saturday November 29, 2025
Start Time:
8:30am CST
End Time:
5:00pm CST
Price:
$15.00 Race Fee + $1.90 SignUp Fee
Registration:
Registration ends November 28, 2025 at 11:59pm CST

Begin As You Mean To Go Further Bundle

10% Discount Per Event

Includes 3 of the following races.

Austin's Backyard Marathon
Leander, TX 78645 US 05/24/2025 - 05/25/2025
  • Austin's Backyard Marathon — May 24, 2025 at 7:00am CDT to May 25, 2025 at 7:00am CDT
Austin Solstice Circuit: Marathon, 52M Relay & Solo, 50K, 25K, 10K, 5K
Spicewood, TX 78669 US 07/12/2025 - 07/13/2025
Pick
1
of the following events:
  • 52.7 Mile Relay — Jul 12, 2025 at 7:00pm CDT to Jul 13, 2025 at 12:00pm CDT
  • 50K Run — Jul 12, 2025 at 7:00pm CDT to Jul 13, 2025 at 12:00pm CDT
  • Marathon — Jul 12, 2025 at 7:00pm CDT to Jul 13, 2025 at 12:00pm CDT
  • 25K Run — Jul 12, 2025 at 7:00pm CDT to Jul 13, 2025 at 12:00pm CDT
  • 52.7 Mile Solo — Jul 12, 2025 at 7:00pm CDT to Jul 13, 2025 at 12:00pm CDT
Colorado River Run Marathon, Ultra and Taco Trot
Lago Vista, TX 78645 US 11/28/2025 - 11/29/2025
Pick
1
of the following events:
  • Marathon — Nov 29, 2025 at 8:30am CST to 5:00pm CST
  • 1/2 Marathon — Nov 29, 2025 at 8:30am CST to 5:00pm CST
  • 50 Mile Run — Nov 28, 2025 at 6:30am CST to Nov 29, 2025 at 6:30pm CST
  • 100 Mile Run — Nov 28, 2025 at 6:30am CST to Nov 29, 2025 at 6:30pm CST
Donut Dash 5K | 10K| 4M | 8M | 16M
Lago Vista, TX 78645 US 11/01/2025
Pick
1
of the following events:
  • 4M — Nov 1, 2025 at 8:30am CDT to 5:00pm CDT
  • 8M — Nov 1, 2025 at 8:30am CDT to 5:00pm CDT
  • 16M — Nov 1, 2025 at 8:30am CDT to 5:00pm CDT
  • 4M/8M/16M Ruck — Nov 1, 2025 at 8:30am CDT to 5:00pm CDT
Holiday Victory Lap: Featuring the Star of Texas Marathon, Half Marathon, 10K & 5K
Spicewood, TX 78669 US 12/14/2025
Pick
1
of the following events:
  • The Star of Texas Marathon — Dec 14, 2025 at 10:00am CST to 2:00pm CST
  • Holiday Victory Half Marathon — Dec 14, 2025 at 10:00am CST to 2:00pm CST
Lake Travis New Year's Trail Challenge with Ruck options- 50K | 25K | 1/2 Marathon | Last Runner Standing | 5K Run/Walk | Kids 1K
Lago Vista, TX 78645 US 01/01/2026
Pick
1
of the following events:
  • 50K Ultramarathon — Jan 1, 2026 at 8:30am CST to 6:30pm CST
  • Half Marathon (13.1 miles) — Jan 1, 2026 at 8:30am CST to 6:30pm CST
  • Half Marathon (13.1 miles) Ruck Division — Jan 1, 2026 at 8:30am CST to 6:30pm CST
  • Last Runner Standing Ultra — Jan 1, 2026 at 8:30am CST to 6:30pm CST

Winter Marathon Series

15% Discount Per Event

Includes 3 of the following races.

Donut Dash 5K | 10K| 4M | 8M | 16M
Lago Vista, TX 78645 US 11/01/2025
Pick
1
of the following events:
  • 10K — Nov 1, 2025 at 8:30am CDT to 5:00pm CDT
  • 4M — Nov 1, 2025 at 8:30am CDT to 5:00pm CDT
  • 8M — Nov 1, 2025 at 8:30am CDT to 5:00pm CDT
  • 16M — Nov 1, 2025 at 8:30am CDT to 5:00pm CDT
  • 4M/8M/16M Ruck — Nov 1, 2025 at 8:30am CDT to 5:00pm CDT
  • 5K/10K Ruck — Nov 1, 2025 at 8:30am CDT to 5:00pm CDT
Colorado River Run Marathon, Ultra and Taco Trot
Lago Vista, TX 78645 US 11/28/2025 - 11/29/2025
Pick
1
of the following events:
  • Marathon — Nov 29, 2025 at 8:30am CST to 5:00pm CST
  • 1/2 Marathon — Nov 29, 2025 at 8:30am CST to 5:00pm CST
  • 50 Mile Run — Nov 28, 2025 at 6:30am CST to Nov 29, 2025 at 6:30pm CST
  • 100 Mile Run — Nov 28, 2025 at 6:30am CST to Nov 29, 2025 at 6:30pm CST
Holiday Victory Lap: Featuring the Star of Texas Marathon, Half Marathon, 10K & 5K
Spicewood, TX 78669 US 12/14/2025
Pick
1
of the following events:
  • The Star of Texas Marathon — Dec 14, 2025 at 10:00am CST to 2:00pm CST
  • Holiday Victory Half Marathon — Dec 14, 2025 at 10:00am CST to 2:00pm CST
Lake Travis New Year's Trail Challenge with Ruck options- 50K | 25K | 1/2 Marathon | Last Runner Standing | 5K Run/Walk | Kids 1K
Lago Vista, TX 78645 US 01/01/2026
Pick
1
of the following events:
  • 50K Ultramarathon — Jan 1, 2026 at 8:30am CST to 6:30pm CST
  • 25K Trail Run — Jan 1, 2026 at 8:30am CST to 6:30pm CST
  • Half Marathon (13.1 miles) — Jan 1, 2026 at 8:30am CST to 6:30pm CST
  • Half Marathon (13.1 miles) Ruck Division — Jan 1, 2026 at 8:30am CST to 6:30pm CST
  • Last Runner Standing Ultra — Jan 1, 2026 at 8:30am CST to 6:30pm CST
Lake Travis Winter Night Marathon and Half
Leander, TX 78645 US 01/31/2026 - 02/01/2026
Pick
1
of the following events:
  • Lake Travis Winter Night Marathon — Jan 31, 2026 at 7:00pm CST to Feb 1, 2026 at 7:00am CST
  • Lake Travis Winter Night Half Marathon — Jan 31, 2026 at 7:00pm CST to Feb 1, 2026 at 7:00am CST

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