A center fielder, Judnich played in Major League Baseball (MLB) for seven seasons with the St. Louis Browns, Cleveland Indians, and Pittsburgh Pirates.

Born in San Francisco, California, Judnich began his career with the New York Yankees, spending five seasons in the organization.

After the 1942 season, he joined the United States Army Air Forces to serve in World War II.

[8] He remained in the starting lineup for the Browns and rebounded by the end of the season, finishing with a .284 batting average, 14 homers, 40 doubles, and 83 RBIs in a career-high 146 games.

[11] He served in the United States Army Air Forces and was stationed at McClellan Field, where he was certified as a marksman and promoted to corporal in October.

[12] The following year, he was transferred alongside Joe DiMaggio to Hickam Field in Hawaii, and also played for the Seventh Air Force baseball team.

[15] In 1947, new Browns manager Muddy Ruel converted Judnich's position to first baseman in an attempt to get Paul Lehner, the team's other center fielder, in the lineup every day.

[6] On November 20, 1947, the Browns traded Judnich and Bob Muncrief to the Cleveland Indians for $25,000, Joe Frazier, Dick Kokos, and Bryan Stephens.

[18] Originally projected to be the starting center fielder, the acquisition of Thurman Tucker later that offseason led to Judnich becoming a utility player.

[6] On February 9, 1949, the Pittsburgh Pirates purchased Judnich's contract from the Indians to give them extra depth at first base, and he started the season on the major league roster as a result.

[20] He only played in ten games for the Pirates, hitting .229, and in May his contract was sold to the San Francisco Seals of the PCL, ending his major league career.

[3] Judnich got off to a hot start for Seattle in 1951, and after the first two months of the season he had a .381 batting average, which led the Pacific Coast League.

[22] In 147 games, Judnich had a .329 batting average with 21 home runs and 102 RBIs, en route to Seattle winning the Pacific Coast League championship.