Coldwater Rumble
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Coldwater Rumble Trail Runs : Coldwater Hundred (Jan 16, 2027)
Coldwater Rumble is a multi-distance trail running event held at Estrella Mountain Regional Park in Goodyear, AZ on Saturday, January 16, 2027. The event features several distance options and a mix of looped courses that use recently re-worked and new trail miles in the park.
Distances:
- 100 Mile
- 100K
- 50K
- 20 Mile
- 10 Mile
- 5 Mile
The 100 mile format uses two 10-mile red loops followed by three 27-mile blue loops; runners pass the start/finish area four times. Surfaces on all courses include crushed granite single track, rocks, boulders, sandy washes, old jeep roads, and dry wash beds. A 1.5–2 mile section called the Corgett Wash can be very sandy; gaiters are recommended. Hiking or trekking poles are allowed but are noted as less useful.
Support at the event includes well stocked aid stations, chip timing with live splits, drop bag options at the Rumble HQ and a remote Horse Thief Aid for longer distances, and rules for crews and pacers (crews at Rumble HQ and limited crew access at Horse Thief; pacers allowed for 100M and 100K at specified points). The event operates as a cupless race; reusable cups are provided or runners may bring their own. Parking is available at the Competitive Track and a $10 park entry fee applies per vehicle. Camping at the Competitive Track is available for the weekend for a fee. Visit the organization's website for the most recent information.
