Hawaii Kai Ultra Run - Kalama Valley Honolulu, Hawaii, United States

The Hawaii Kai Ultra Run - Kalama Valley is an ultra running event taking place on December 19 and 20, 2026 in Honolulu, Hawaii. The event offers seven race distances: Half Marathon, 30K, Marathon, 50K, 50 Miles, 100K, and 100 Miles. The course consists of a 3.34-mile loop on Kealahou Street in the Kalama Valley residential neighborhood, with the start/finish located at Kalama Valley Park. Runners can choose from scheduled wave start times on Saturday morning, Saturday evening, or Sunday morning, or they can show up and sign in with their own start time.