 He served as the head football coach at McKendree College—now known as McKendree University—in Lebanon, Illinois from 1933 to 1935 and at Fort Hays State University in Hays, Kansas from 1936 to 1941.Waldorf compiled a career college football coaching record of 40–32–9.Waldorf was also the head basketball coach at McKendree for two seasons, in 1933–34 and 1935–36, tallying a mark of 20–21.