Big Island International Marathon

Registration is open to everyone and available online via RunSignup through February 1. Late entries are accepted until March 1, with a higher entry fee. Mail-in registration is also accepted with a March 1 postmark deadline.

Yes, the course is USATF certified and qualifies for Boston. That said, the warm and humid conditions in Hilo can make hitting a qualifying time more demanding than a flat course alone would suggest.

The time limit is 7 hours.

The course is a multi-loop layout that stays very close to sea level throughout, with a highest point just over 230 feet and zero net elevation change. It's flat and consistent, with no significant climbs or descents.

Expect warm, humid conditions. Temperatures typically start in the mid-60s and rise into the upper 70s by mid-morning. The humidity adds effort that won't show up in your splits, so plan your pacing and hydration strategy around a warm day.

This is a small race with a recent finisher count in the low hundreds. If you prefer a quieter, less crowded race experience, that's part of the draw here.

The race starts near Banyan Drive in Hilo, and the host hotel is the Hilo Hawaiian Hotel, which puts you steps from the start and finish. The nearest major airport is Hilo International Airport, about 30 minutes away.