Marty DeMerritt

Martin Gordon "Mad Dog" DeMerritt (March 4, 1953 – January 11, 2025) was an American professional baseball coach and a former minor league pitcher. DeMerritt was the interim bullpen coach for the 1989 World Series Champion San Francisco Giants, and spent the last 22 of his 36-season coaching career as a beloved figure in the Tampa Bay Rays system. and as a bounty-hunter in California. He also coached in youth baseball in the San Francisco Bay area.

In 1983 he was hired as a minor league pitching coach by his hometown Giants, working with the club's affiliates in Clinton (1983), Fresno (1984-85), Shreveport (1986-87) and Phoenix (1988-89), before joining the staff of the big league team in September 1989.

In 1990, DeMerritt became the pitching coach for the Samsung Lions, becoming the first American to hold that position in Korea. He was the Pittsburgh Pirates minor league pitching coordinator in 2000.

In 2001, the Tampa Bay Devil Rays hired DeMerritt as a pitching coach at the Class A level. He remained with the Rays organization, working primarily with low level pitches, until retiring after the 2023 season.