The San Blas Half Marathon will return to Coamo, Puerto Rico, on Sunday, 1 March 2026, offering runners a challenging single-distance race of 21.1 km. Known for its steep climbs, fast descents, and warm tropical climate, it draws elite international athletes and passionate local runners alike. The course winds through the historic streets of Coamo, where vibrant crowds, music, and island culture create an atmosphere unlike any other. With its rich tradition and reputation for testing endurance, it stands as one of the Caribbean’s most iconic half marathons.
Race
Half Marathon
The San Blas Half Marathon will be held on Sunday, 1 March 2026 in Coamo, Puerto Rico. It’s a road race that moves through the historic streets and lush countryside surrounding Coamo, combining challenging terrain with rich local atmosphere.
Weather based on historical averages.
FAQs
What is the San Blas Half Marathon?
How long is the San Blas Half Marathon?
Where does the San Blas Half Marathon take place?
What is the elevation gain of the San Blas Half Marathon?
How can I prepare for the San Blas Half Marathon?
How do I choose the right training plan for the San Blas Half Marathon?
The San Blas Half Marathon will be held on Sunday, 1 March 2026 in Coamo, Puerto Rico. It’s a road race that moves through the historic streets and lush countryside surrounding Coamo, combining challenging terrain with rich local atmosphere.
The San Blas Half Marathon is 21km long.
The San Blas Half Marathon takes place in Coamo, Pasto, Puerto Rico.
Runna classifies the San Blas Half Marathon elevation profile as Hilly.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the San Blas Half Marathon?
The San Blas Half Marathon will be held on Sunday, 1 March 2026 in Coamo, Puerto Rico. It’s a road race that moves through the historic streets and lush countryside surrounding Coamo, combining challenging terrain with rich local atmosphere.
How long is the San Blas Half Marathon?
The San Blas Half Marathon is 21km long.
Where does the San Blas Half Marathon take place?
The San Blas Half Marathon takes place in Coamo, Pasto, Puerto Rico.
What is the elevation gain of the San Blas Half Marathon?
Runna classifies the San Blas Half Marathon elevation profile as Hilly.
How can I prepare for the San Blas Half Marathon?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the San Blas Half Marathon?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
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Sport:
Running
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Nature
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by San Blas Half Marathon or Maratón San Blas, Inc. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the San Blas Half Marathon website.
