The Route 66 UltraRun next month will require participants to run 140 miles over a three-day period from Seligman, Arizona, to near the California state line in Topock, Arizona. This is considerably longer than a typical ultramarathon, which is 100 miles. According to the Historic Route 66 Association of Arizona newsletter, ultrarunning legend Marshall Ulrich … Continue reading Route 66 UltraRun event will require runners to go 140 miles on Arizona’s Route 66