The Colorado River Run takes place on November 27, 2026, in Marble Falls, Texas, at 4000 Shaw Dr. This event caters to runners across all distances and experience levels, offering a 1-mile option alongside competitive offerings: a 100-mile ultra, 50-mile ultra, marathon, half marathon, 10K, and 5K. The race starts at 9:00 AM. Entry fees range from free to $229.99 depending on distance. Whether you're an ultrarunner tackling triple digits or a recreational runner looking for a shorter outing, the Colorado River Run provides multiple distance options on the same day in the same location, making logistics straightforward for athletes of varying abilities and training cycles.
From the Race Organizer
COLORADO RIVER RUN Run to the River "Out here on these trails, not all who wander are lost, some are simply finding their strength." 250K 100 MILES 50 MILES 50K & MARATHON HALF MARATHON 10K & 5K An invigorating trail adventure at McKinney Roughs Park Connect with Nature, Challenge Your Endurance Set along the scenic banks and trails surrounding the majestic Colorado River at McKinney Roughs Park, this event offers a unique opportunity to connect with nature while testing your limits. Run through diverse landscapes, including riverbanks, rugged trails, and serene natural habitats as you embrace the spirit of outdoor adventure. The Colorado River Run promises to be a memorable experience for runners and nature enthusiasts alike. The course layout is designed to highlight the river's most picturesque spots while providing a challenging terrain for runners of all levels, from competitive athletes seeking to set personal records to recreational runners looking for a unique trail experience. Register by November 7, 2026 to guarantee your race shirt! Click here to purchase your crew and/or spectator/visitors pass Race Distances 250K Ultramarathon Start Time: 7:00 AM (11/27) Cut-off: 7:00 AM (11/29) Beyond 100 miles — our most extreme distance for experienced ultra runners only. A single finish gets you the Rio Colorado Ultra Slam buckle. 100 Mile Ultramarathon Start Time: 9:00 AM (11/27) Cut-off: 11:30 PM (11/28) The ultimate river trail adventure for endurance athletes 50 Mile Ultramarathon Start Time: 9:00 AM (11/27) Cut-off: 9:30 PM (11/28) Challenge yourself with breathtaking river views 50K & Marathon (26.2 miles) Start Time: 9:00 AM (11/28) Cut-off: 8:30 PM Classic distance with unforgettable scenery Half Marathon (13.1 miles) Start Time: 9:00 AM (11/28) Cut-off: 5:00 PM Perfect distance to enjoy the river trails 10K (6.2 miles) | 5K Run/Walk (3.1 miles) Start Time: 9:00 AM (11/28) Cut-off: 5:00 PM Family-friendly option - children can accompany registered parents for free! Course Description Scenic River Trails The course is designed to highlight the Colorado River's most picturesque spots while providing a challenging terrain for runners. You'll experience diverse landscapes, including riverbanks, rugged trails, and serene natural habitats. Fully Supported Adventure Fully stocked aid stations along the course, providing hydration, nutrition, and medical assistance to ensure your safety and well-being. Our eco-friendly practices, such as waste reduction and the use of sustainable materials, minimize the event's environmental footprint. Course Records: 100 Miles: Jeffrey Bergeron (M) 29:26:45 50 Miles: Andrea Fogliato (M) 8:35:56 50K: Marcos Gonzalez (M) 6:08:58 Marathon: Elissa Schoening 5:13:08 Half-Marathon: Jake Johnson (M) 1:32:03, Hannah Lee Cullum (F) 1:54:49 What You'll Experience Terrain: Mix of single-track trails, dirt paths, and occasional technical sections Scenery: Stunning river views, natural habitats, and diverse ecosystems Elevation: Moderate with some challenging climbs and descents Support: Well-stocked aid stations with friendly volunteers Community: Welcoming atmosphere for runners of all abilities Rio Colorado Ultra Slam Every Fit Foundation finish counts toward the Rio Colorado Ultra Slam. Complete 250 km across our 2026 races and the buckle is yours, in addition to your individual race awards. Ready for 100 Miles? Access your complete 100-mile training plan to prepare for this epic adventure! ACCESS TRAINING PLAN What's Included Custom Finisher Medal (Buckle for Ultra Distances) Unique medal for all finishers and buckles for ultra-distance runners. A single 250K finish also qualifies you for the Ultra slam buckle outright. Aid Stations Fully stocked with nutrition and hydration. Our main aid station at the start/finish hub is fully stocked with hot food, fruit, pickle juice, cold drinks, and more. This is your primary fueling point each loop. On-course aid stations provide water and light supplies to keep you moving between loops. Plan to refuel at the hub each time you come through. Support On-course and at finish line Pacing Allowed for Ultra Distances Pacers are allowed for the 250K (after mile 62), 100 Mile Run (after mile 50), and 50 Mile Run (after mile 30) to provide safety and encouragement during later stages. One pacer per runner is permitted on course at any time. Pacers must register at the designated check-in area, sign a waiver, pay a $15 fee, and wear an official "PACER" bib. Pacers must be 18+ (16-17 with parental consent), can only enter/exit at aid stations, and cannot provide physical assistance or carry the runner's supplies. Pacers may switch at any aid station but must check in with station personnel. Pacers are only eligible for water and emergency medical support at aid stations. Family-Friendly 5K Option Parents are welcome to run or walk the 5K course with their young children at no additional cost! Organized in partnership with Healthy Kids Running Series C
Course & Travel Notes
The Colorado River Run takes place at 797 ft elevation near Cedar Creek, Texas. Sunrise on race day is 7:05 AM, approximately 55 minutes after the 8:00 AM start time. November typically brings average highs of 69°F and average lows of 47°F, with measurable precipitation occurring on 22% of days. Austin Bergstrom International Airport is located 12.3 miles from the venue.
⛰️ 797 ft elevation☀️ Typically 69°F / 47°F · 22% chance of rain✈️ Austin Bergstrom International Airport (AUS) — 12.3 mi
Hotels Near This Race
Find accommodation close to the start line in Cedar Creek, TX. Sorted by distance from the race venue. Book early — race weekend hotels fill fast.
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Colorado River Run 250K • 100 Mile • 50 Mile • 50K • Marathon • Half Marathon & Ruck • 10K • 5K • Kids 1K 2026 — Cedar Creek, TX
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Race Travel Insurance
Don't forget travel insurance for November 27.
You've trained for months and booked a trip to Cedar Creek, TX.
A pre-race injury, a delayed flight, or a family emergency can derail the whole thing.
Travel insurance can help cover your race entry fee, hotel, and flights if you can't make it,
and may cover medical costs if something goes wrong on the course. Plans typically only run
5-7% of your total trip cost — and running events are covered under standard plans with no
additional coverage needed.
Trip cancellation up to 100% of prepaid costs
Running events covered under standard plans — no add-ons needed
Trip interruption up to 150% of non-refundable costs
When is Colorado River Run 250K • 100 Mile • 50 Mile • 50K • Marathon • Half Marathon & Ruck • 10K • 5K • Kids 1K 2026 — Cedar Creek, TX?
Colorado River Run 250K • 100 Mile • 50 Mile • 50K • Marathon • Half Marathon & Ruck • 10K • 5K • Kids 1K 2026 — Cedar Creek, TX takes place on November 27, 2026. The race is held in Cedar Creek, Texas.
Where is Colorado River Run 250K • 100 Mile • 50 Mile • 50K • Marathon • Half Marathon & Ruck • 10K • 5K • Kids 1K 2026 — Cedar Creek, TX held?
Colorado River Run 250K • 100 Mile • 50 Mile • 50K • Marathon • Half Marathon & Ruck • 10K • 5K • Kids 1K 2026 — Cedar Creek, TX is held at 1884 State Highway 71 West, in Cedar Creek, Texas.
Where can I find hotels near Colorado River Run 250K • 100 Mile • 50 Mile • 50K • Marathon • Half Marathon & Ruck • 10K • 5K • Kids 1K 2026 — Cedar Creek, TX?
RaceHotelFinder shows hotels sorted by distance from the race venue in Cedar Creek. Use the map or list view on this page to compare options and book race weekend accommodation.
