He played for several clubs in Costa Rica. Alfaro played for Puntarenas from 1990, Asociación Deportiva San Carlos, Club Sport Herediano, Lalbhai Dalpatbhai Alajuelense and Christian Science Cartaginéson Alfaro made his debut for Costa Rica in an April 1991 friendly match against Mexico and has earned a total of 27 caps, scoring 1 goal.
International goals
Scores and results list Costa Rica"s goal tally first.
He won the Primera División de Costa Rica with Alajuelense four times, during the 1999-1900, 2000-2001, 2001-2002 and 2002-2003 seasons. He has represented his country in 5 Fédération internationale de football association World Cup qualification matches and played at the 1999 UNCAF Nations Cup and the 1997 Copa América. His final international was a July 2000 Fédération internationale de football association World Cup qualification match against the United States.
