Coldwater Rumble 100

Race Day Info

Date / Time: Saturday, January 19, 2019 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.)

Race Information

Cost: $228.48 until 9/14, $255.68 until 12/27, $282.88 until 1/15, then $310.08

Completion rate: 54% (28/52) 2018, 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)