Marathon Readiness Series

The 2025 Marathon Readiness Series, presented by Shaka Racing in Honolulu, Hawaii, is a multi-race event designed to prepare runners for the Honolulu Marathon. The series includes four competitive races: the Boca Norman Tamanaha 15K at Kapiolani Park, the Runner's HI 20K at Kalaeloa, and two half marathons—the Uloha Kailua Half Marathon and the Running Room Val Nolasco Half Marathon. A bonus non-competitive longer run will be announced.

Enhancements this year feature porta potties, upgraded custom performance finisher shirts and medals, and a new team/running club category with special awards. The Kailua course returns to Kailua Beach Park, and the 20K route may be updated for improvement. Visit the organization's website for the most recent information.