Run the River: Rio Colorado Ultra Slam™

Run the River: Rio Colorado Ultra Slam™

Fri, Jan 1, 2027 · in 2 months Spicewood, TX

Rio Colorado Ultra Slam 400Rio Colorado Ultra Slam 200Rio Colorado Ultra Slam 150

Race website & registration

Your chances

Where would you finish?

Enter your race pace or connect Strava, and raceIQ compares you with this race's past finishers in your age group and gender.

See your predicted place

Race-morning weather

49°F

Typical 7–9am temperature on race day over the past five years, with a dew point of 44°F. Usually cool enough that heat shouldn't slow you down.