Coldwater Rumble
Goodyear, United States • 17 Jan 2026
Event overview
The Coldwater Rumble is a trail running event in Goodyear, AZ, scheduled for Saturday, January 17, 2026. The race takes place at the Estrella Mountain Competitive Track within Estrella Mountain Regional Park, near 14805 West Vineyard Avenue. It is the fifth race in the Aravaipa Running Desert Runner Trail Series. Registration closes Monday, January 12 at 11:59 PM MT.
Race details
The event offers multiple distances:
- 100 Miler
- 100K
- 60K
- 40K
- 10 Miler
- 5 Miler
The course follows desert trails through the foothills of the Sierra Estrella mountain range. Typical weather for this time of year in Goodyear has average highs in the mid 60s Fahrenheit and lows in the low 40s Fahrenheit; storms or cold snaps are possible. All finishers receive a finisher award. Participants earn points toward the Desert Runner Trail Series, and 100-mile finishers receive buckles.
The event is organized as a cupless event to reduce race waste; reusable UltrAspire cups will be available at registration and on race day, or participants may bring their own. Volunteer roles include event setup, aid station captains and helpers, timing, photography, videography, social media, course sweep, and event breakdown. Volunteer perks include a piece of Aravaipa merchandise or a race goody and Aravaipa Race Credits. Visit the organization's website for the most recent information.