21K Yerba Buena
Race snapshot
Race Day
Feels mild
Total elevation gain
Relatively flat course · Net elevation change +0 ft
Crowd Rating
Moderate spectator support
The Lowdown
21K Yerba Buena is an annual half marathon in Yerba Buena, the garden-city suburb of San Miguel de Tucumán in northwest Argentina. The fifth edition ran on May 17, 2026, with the start and finish at the Predio Las Cañas on Avenida Perón and Las Rosas. A 10K and a Kids 21K for children run the same weekend. Culmen and Las Cañas organize the race with support from the Municipalidad de Yerba Buena, and organizers aimed for more than 2,500 athletes in 2026. Registration included a runner kit, race shirt, chip-timed bib, finisher medal, hydration stations, medical service, parking at Las Cañas and an after-party. The 2027 date follows the mid-May cadence and has not been announced.
Questions about the 21K Yerba Buena 2027
When is the 21K Yerba Buena 2027?
Sunday, May 16, 2027.
Where is the 21K Yerba Buena?
Yerba Buena, Tucumán, Argentina.
What time does the 21K Yerba Buena start?
The race starts at 8:00 AM, local time.
How do I enter the 21K Yerba Buena 2027?
Registration has not opened yet. Ways in: Online registration through the official site.
How much does the 21K Yerba Buena 2027 cost?
21K Individual Entry: ARS 70,000.
What is the 21K Yerba Buena elevation gain?
40 m (131 ft) of total elevation gain. Net elevation change: +0 m (0 ft). Relatively flat course.
What is the weather like at the 21K Yerba Buena?
The race-day average is 17 °C (63 °F). Feels mild.
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