The Hawaii Challenge Runs is on Sunday July 19, 2020 to Sunday March 7, 2021. It includes the following events: Hawaii Challenge Runs, Maui Challenge, Moloka’i challenge, Oahu Challenge, Kauai Challenge, Hawaii Challenge Runs - Non USA, Maui Challenge - Non USA, Moloka’i challenge - Non USA, Oahu Challenge - Non USA, and Kauai Challenge - Non USA.