Harbor to Harbor 15K and Relay

Harbor to Harbor 15K and Relay is run in Wailuku, Hawaii, on November 8, 2026. Both events start at 7 a.m.: a 15K, about 9.3 miles, run individually, and the same 15K covered as a relay by a team. The early start is standard practice in the islands, where the day heats up well before mid-morning.

The relay option is what makes this one worth a look. Splitting the distance turns a solid endurance effort into a set of shorter, faster legs, so a group with mixed fitness can enter together without anyone being left behind. Running it solo, treat 15K as a distance you race close to half marathon effort: 8 to 10 weeks of steady mileage with a long run of 8 to 10 miles is a sound base.