Photo Credit: SweetM Images

Race Day Info

Date / Time: Saturday, January 20, 2018 at 7:00 AM

Race Distance: 100 Miles

Location (Start / Finish): Estrella Mountain Regional Park, Goodyear, AZ

Race Day Temperature at Start (High / Low Avg.): 66 / 42 F

Sunrise / Sunset: 7:31 AM / 5:50 PM

Race Cutoff (Hrs.): 32

Course Information

Course Layout(Map): 5 x 20 Mile Loop

Terrain: A mix of crushed granite single track, rocks, boulders, sandy washes, old jeep roads, and dry wash beds

Elevation Change (Ascent / Decent): 10,630 ft. (5,315 ft. / 5,315 ft.)

Altitude Above Sea Level (Min. / Max.): 900 ft. / 1,300 ft.

Number of Aid Stations (Max. distance in miles between A.S.): 4 (7.9 mi.)

Coldwater Rumble 100 2.jpg

Race Information

Cost: $228.48 until 10/13, $255.68 until 12/22, $282.88 until 1/16, then $310.08

Completion rate: 51% (27/53) 2017, 68% (32/47) 2016, 47% (34/72) 2015

Course Record (M/F): 15:09:52 Catlow Shipek (2014) / 20:05:43 Gina Dhaliwal (2014)

Prerequisites / Lottery / Trail Work Req.: No / No / No

Qualifying Race for: UTMB

Race Series: N/A

Website: https://www.aravaiparunning.com/coldwater-rumble/

Race Director: Aravaipa Running

Year Established: 2012

Other Race Distances: 4 mi. / 20k / 20 mi. / 52k / 52 mi.

Fun Fact:  Estrella Mountain Regional Park, 19,840 acres of desert and mountains, became the first regional park in the Maricopa County Park System in 1954. The Sierra Estrella range, or Star Mountains, was once within the Mexican border, and remained so until the Gadsden Purchase in 1853.

Nearest Airports (HRs): Phoenix, AZ (.5), Tucson, AZ (2.25)

Race Reports

Coldwater Rumble 100-Race Report – Alison Naney

Coldwater Rumble 100 – The Ups And Downs – Jason Bahamundi

Coldwater Rumble 100 – Davy Crockett

Coldwater Rumble 100 Mile Race Report

Coldwater Rumble 100mile, or, my first 100 miler yay! – Magi

2014 Coldwater Rumble 100: Sun, Sand and Single Track – Kelly Agnew

Coldwater Rumble 100 Mile – Kate Fischbeck

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