McAdams was selected by the Brooklyn Dodgers in the first round, with the eighth overall pick, of the 1941 NFL draft.[7] He played in all 11 games for the Dodgers during his rookie year in 1941, completing 12 of 27 passes (44.4%) for 176 yards, two touchdowns, and three interceptions, 38 carries for 99 yards, seven catches for 94 yards, one defensive interception, 16 punts for 761 yards, two of three field goals, and three of three extra points.[7] The team finished the season with a 7–4 record, good for second place in the Eastern Division.[8]
McAdams appeared in all 11 games for the second straight season, starting ten, in 1942, totaling 35 completions on 89 passing attempts (39.3%) for 441 yards, two touchdowns, and 15 interceptions, 110 rushing attempts for 314 yards, 52 punts for 2,158 yards, two of two extra points, seven kick returns for 165 yards, and six punts returns for 95 yards.[7] He led the NFL that season in total punts and punting yards.[7] He also had the longest punt of the season with a 74-yarder.[7] The Dodgers finished the year with a 3–8 record.[9]
McAdams became a free agent after the 1942 season and re-signed with the Dodgers on August 24, 1943.[10] He played in eight games, starting one, in 1943, recording 37 completions on 75 pass attempts (49.3%) for 315 yards, no touchdowns, and seven interceptions, 36 punts for 1,354 yards, three defensive interceptions, and five kick returns for 102 yards.[7] He was released by the Dodgers in 1943.[10]
Seattle Bombers
McAdams started eight games for the Seattle Bombers of the American Football League (AFL) in 1944, scoring eight passing touchdowns and two rushing touchdowns while earning All-AFL honors.[1]