San Blas Marathon

The San Blas Half Marathon is one of the Caribbean’s most historic and prestigious road races, held each year in Coamo, Puerto Rico. First run in 1963, the event is known for its challenging, rolling course that winds through the town’s streets and surrounding countryside, often under warm tropical conditions. The race attracts elite international athletes alongside passionate local runners, creating a lively atmosphere filled with music, cheering crowds, and a deep sense of tradition that has made it a cornerstone of Puerto Rico’s sporting calendar.