Rosalyn Marquez, originally from El Salvador  began her career at a very young age as a member of the modern dance group at the San Antonio school, later she stood out as a member of the Athletics Federation, winning some medals for her team,

later she joined the bodybuilding federation of her country becoming national champion and silver medalist in the Central American Games held in San Pedro Sula, Honduras and second in the Central American and Caribbean Games in El Salvador. Apart from her career as an athlete, she was an aerobics instructor and group classes at the El Salvador Olympic gym. She is currently preparing to return to compete in the 2023 IFBB master wellness and working to launch her new group classes at Optimun sport and fitness.