Coldwater Rumble
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Coldwater Hundred
Coldwater Hundred takes place January 16–17, 2027 at Estrella Mountain Regional Park in Goodyear, Arizona. The event offers multiple trail race distances held on desert terrain in the foothills of the Sierra Estrella mountains.
Distances
- 100M
- 100K
- 50K
- 20M
- 10M
- 5M
The courses run on a mix of crushed granite single track, rocks, boulders, sandy washes, old jeep roads, and dry wash beds. The 100 mile format uses two 10 mile red loops followed by three 27 mile blue loops, with competitors passing the start/finish area multiple times. Runners should expect sections that can be remote or sandy, including a 1.5 to 2 mile wash section where gaiters may be helpful. Hiking poles are allowed.
Aid stations are provided and described as well stocked. The event uses chip timing and remote split points for live tracking. Crews may access the Rumble headquarters at the start/finish and are allowed at Horse Thief Aid with no structures or camping. Pacers may join 100 mile and 100 kilometer runners at specified points. Drop bags are allowed at Rumble headquarters; select distances may use a remote drop bag at Horse Thief Aid.
Time limits and cutoffs apply, with a 32 hour limit noted for the 100 mile distance. Camping, tent and cot rentals, parking, and a park entry fee are available for participants. Awards include top three male and female finishers at each distance, finisher glass awards up to 50K, a unique 100K award, and 100 mile buckles for specific finish times. Medical staff and volunteers are present on site. Visit the organization's website for the most recent information.
