Marty Costes Stats & Bio | Marlins Left Field

About Marty Costes

Marty Costes patrols the outfield for the Miami Marlins, bringing compact power and athleticism to the left field position while sporting jersey #87. Standing at 5'9" and a solid 200 pounds, the Baltimore native defies the traditional outfielder build with a combination of strength and agility. Costes honed his baseball skills at the University of Maryland, where he developed the disciplined approach that would eventually earn him a place in the major leagues. Born in December 1995, his journey from the mid-Atlantic to Miami represents years of persistence and development. While not the tallest player on the diamond, Costes compensates with explosive athleticism and baseball instincts. His tenacity and work ethic have made him a valuable contributor to the Marlins organization, embodying the underdog spirit that resonates with fans.

Updated: Jun 3, 2025