Born in Detroit, Michigan, Tresh graduated from Allen Park High School. He then attended Central Michigan University.
While Tresh played a majority of his games in the outfield, he opened the 1962 season for the Yankees at shortstop, filling in for Tony Kubek, who was performing military service. Not until Derek Jeter in 1996 would another Yankee rookie shortstop start on Opening Day. [3] He also played third base, with most of his games at third being played during the 1966 season.
After seven full seasons in New York, the Yankees traded Tresh to the Detroit Tigers during the 1969 season for outfielder Ron Woods. He was released by Detroit prior to the 1970 season, at age 31.[4]
Tresh hit 114 home runs from 1962 to 1966, with a career-high 27 in 1966, and he made the American League All-Star team in 1962 and 1963. A Gold Glove winner in 1965, he also homered from each side of the plate in three games, including a doubleheader in that season in which he hit four home runs, three of them in the second game. In a nine-season career, Tresh was a .245 hitter with 153 home runs and 530 RBI in 1,192 games.[2]
Following his playing career, Tresh returned to his alma mater, Central Michigan, where he worked as an assistant placement director for many years. He helped to invent the Slide-Rite, a training tool to teach sliding and diving skills for baseball, softball, football and soccer.[5]