[1] A curveball specialist, Holloway entered the majors in 1922 with the Detroit Tigers, remaining with the club for seven years from 1922 to 1928.

[1] In December 1928, Holloway and Jackie Tavener were traded to the Cleveland Indians in exchange for pitcher George Uhle.

Holloway appeared in 25 games for the 1928 Indians, 11 as a starter, and compiled a 6–5 record with a career low 3.03 ERA.

In 1930, he began the season with Cleveland, appearing in 28 games and compiling a 1–1 record with a career high 8.40 ERA.

[1] In nine major league seasons, Holloway posted a 64–52 win–loss record with 293 strikeouts and a 4.40 ERA in 285 appearances, including 110 starts, 43 complete games, four shutouts, 18 saves, and 1,160 innings pitched.