Coldwater Rumble

Javelina Jangover Night Runs takes place at McDowell Mountain Regional Park, near Fountain Hills, Arizona, staging from the Pemberton Trailhead. The race offers 75K, 50K, 25K, 15K, and 7K distances on rolling desert trails with fast sections and hills. It is the final race in the Insomniac Night Tra..

The PhoMo 50K is a challenging ultramarathon held in the scenic Phoenix Mountain Preserves, Arizona, starting and finishing at the Piestewa Peak Trailhead. Covering 31.2 miles (50 km) with over 6,000 feet of elevation gain, the course features rocky, technical terrain with minimal shade, demanding s..

Fat Ox Endurance Runs, staged at Estrella Mountain Regional Park in Goodyear, Arizona, is a fixed-time ultramarathon festival offering 48-, 24-, 12-, and 6-hour options, plus 100 Mile, 100K, 50 Mile, and 50K races. Runners navigate a USATF-certified 0.988-mile concrete loop encircling the park’s tur..

Trail Blazer 10K - 5K is a trail run hosted by StartLine Racing at Paloma Community Park in Peoria, AZ. The event offers 10K and 5K routes (plus a virtual option) through the park’s trail system, where runners may encounter local wildlife and enjoy a desert sunrise. The atmosphere emphasizes positiv..

The Pup-A-Go 5k Hike/Run is an annual event held at Papago Park in Phoenix, Arizona, featuring a 5K course that loops counterclockwise around the park. Participants can run, jog, or hike with their dogs or solo, with an emphasis on community and respect for all attendees. Dogs must be leashed and va..

Desert Solstice Track Invitational is an ultrarunning meet on a 400-meter all-weather track at Central High School in Phoenix, Arizona. It centers on two distances, 24 hours and 100 miles, attracting competitors by invitation or qualification, with a cap of 25 entrants. The looped course changes dir..