The Hapalua - Half Marathon

The Hapalua - Half Marathon is run on April 11, 2027 in Honolulu, Hawaii, over the half marathon distance (13.1 miles). It is the largest half marathon in the islands. The course starts in Waikiki at sunrise, passes the Aloha Tower, climbs around Diamond Head and finishes at Kapiolani Park, with live music, local food and a malasada waiting at the line — a tradition shared with the Honolulu Marathon.

The mix of coastline and city means it is not a flat time-trial: the climb around Diamond Head sits late enough in the race to punish an aggressive first few miles, so run the opening stretch a touch under goal pace and spend what you have saved on the way back. Anyone traveling in should also plan for heat and humidity, which argues for a ten-to-twelve-week build with long runs done in the warmest part of the day.