Marathon

Costa Rica Marathon

Marathon San José Costa Rica

San José, Costa Rica December 42.195 km

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Course & Elevation

The San José Marathon Costa Rica is a city marathon in the capital, held on a Sunday in early December, with the start and finish at the Estadio Nacional in the Parque Metropolitano La Sabana. It is organised by the non-profit Asociación Marathon Internacional Costa Rica and was first held in 1995. The marathon is four laps of a 10.5 km base circuit that the organisers say is certified by AIMS and World Athletics. The route, as described for 2025, leaves the north side of the stadium, climbs Boulevard Las Américas to the León Cortés statue and follows Paseo Colón and Avenida Segunda to a turnaround, then returns past the Gimnasio Nacional and takes the Próspero Fernández highway toward Pavas before coming back along Boulevard Ernesto Rohrmoser to the stadium. A half marathon, a 10K, a 5K and a relay run on the same morning, and the race starts at 6:00 am. The 29th edition in December 2025 drew more than 3,000 participants from 35 countries, and the 30th edition is scheduled for 6 December 2026. The organisers report that times run here are valid for Boston qualifying. San José should not be confused with the separate Gran Maratón Costa Rica or the Maratón San José BCR run by the city in June.

Surface: road Profile: Rolling

Weather

Typical climate for the race month — an estimate, not a forecast or a race-day record

Temperature 22°C
Humidity 74%
Rain Chance 26%

December in San José is the start of the dry season: average highs are around 28°C and lows around 18°C, with about eight days of measurable rain in the month.

Related Guides

Costa Rica Marathon race

The Race

San José cityscape

San José

Race Lore

An Association Founded for an International Race

1995

The Asociación Marathon Internacional Costa Rica grew out of a process that began in 1992-93, from the need to give Costa Rican athletes an event with international standing and national and international certification. The association was founded in 1993, and it obtained IAAF and AIMS certification in 1995. The first race was held in 1995 and was won by Emperatriz Wilson of Cuba and Mario Peña of Mexico.

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