2026 Kauai Marathon - Sep 6

Loop marathon course in Koloa with 620m elevation gain. One of the hardest road marathons in the U.S. The full course is a hilly loop starting and finishing in Poipu, sharing the first 11 miles with the half before climbing out to Lawai and up to Kalaheo, then descending back to the oceanfront finish. About +620 m of total climbing on a scenic coastal route. Not a Boston qualifier (only ~0.9% of finishers run a BQ time)