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.
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
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.
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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