Baseball in Puerto Rico
By the 1949-50 season, several new ballparks were built, each containing 6,000 or more seats. The largest new stadium was Ponce's Estadio Francisco Montaner with 9,718 seats. Montaner has the distinction of being the first stadium in Puerto Rico that installed an artificial surface field. The installation of lights, which allowed for night games, further boosted stadium attendances. The Stadium was named to honor Francisco "Paquito" Montaner, one of the greatest Puerto Rican pitchers of all times.
Puerto Rico Sol
Puerto Rico Sol play most of their home matches at Mayaguez Athletics Stadium in Mayaguez, Puerto Rico. 
Mayaguez Stadium is owned by the city of Mayaguez and has a capacity of 12,800 with 5,100 of those being roofed seats.
The Mayagüez Athletics Stadium hosted the athletics and soccer games of the 2010 Central American and Caribbean Games.