Course & Elevation

The Guam Marathon features a scenic coastal loop course starting and finishing in Tumon, the island's premier resort destination. Runners traverse the west coast passing through the villages of Dededo, Barrigada, and Yigo before returning along the eastern shoreline with consistent tropical ocean views. The course is relatively flat with gentle rolling hills, making it accessible for mid-pack runners while the warm Pacific breezes and tropical setting create a unique racing environment.

Surface: road Profile: Rolling

Weather

Temperature 28°C

Humidity 72%

Rain Chance 25%

Warm and humid tropical climate with morning temperatures around 25°C rising to 31°C by afternoon. April is part of the dry season with occasional brief tropical showers. Trade winds provide some relief, though runners should expect intense sun exposure throughout the race.

The Race

Tumon

Race Lore

Born in the Running Boom

1982 Origin

The Guam Marathon was founded in 1982, during the golden age of mass-participation running. Now 44 years old, it has established itself as a beloved fixture in Tumon, growing from its early editions into a race with genuine character and loyal following.

Running Through a Postcard

Course

The Guam Marathon route is one of those courses where runners forget their pace and reach for their phones. The scenery through Tumon and its surroundings has earned this race a reputation as one of the most photogenic in Oceania.

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Registration

Registration Opens December

Registration Closes March

Entry Cost $120-$160

Official Website →

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Fun Facts

▸ The Guam Marathon is one of the oldest continuously held marathons in the Pacific, celebrating over 40 years of racing tradition.
▸ The race attracts significant participation from military personnel stationed at Andersen Air Force Base and Naval Station Guam.
▸ April represents the ideal racing month in Guam, marking the transition into the dry season after the cooler winter months.
▸ The finish line celebration in Tumon includes local Chamorro cultural performances and traditional Pacific Island refreshments.

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