He played in parts of two seasons in Major League Baseball for the Pittsburgh Pirates in 1951 and 1954, and later served in the organization for almost four decades.

Highly touted by the Pittsburgh Pirates during his career, he was a screwball specialist and had a good curve as well, but a sore arm limited him to pitch in only 28.1 innings.

Helped by catcher Earl Battey, Yochim accomplished the feat in the Caracas 3–0 victory over the Navegantes del Magallanes.

Besides, he also played in the league for Vargas, Gavilanes and Magallanes, compiling a 29–20 record and a 3.57 ERA in 86 games from 1952 through 1956, while pitching for Caracas in the 1953 Caribbean Series.

[2] Following his playing career, Yochim rejoined the Pittsburgh Pirates organization in 1966 to become a member of their baseball operations department.