Marty McManus debuted on September 25, 1920, playing for the St. Louis Browns at Sportsman's Park IV; he played his final game on September 30, 1934, playing for the Boston Braves at Braves Field.
Marty McManus played in just one game at first base for the Boston Red Sox in 1932 and did not start. He made 3 putouts, had one assist, and committed no errors, equivalent to 0 errors per game (estimate based on total games played in). He had no double plays.
Marty McManus played in 2 games at short stop for the Boston Red Sox in 1932, starting in none of them. He made one putout, had no assists, and committed one error, equivalent to .5 errors per game (estimate based on total games played in). He had no double plays.
Marty McManus played in 4 games at first base for the Boston Red Sox in 1933, starting in none of them. He made 11 putouts, had no assists, and committed no errors, equivalent to 0 errors per game (estimate based on total games played in). He had no double plays.
Marty McManus played in 73 games at second base for the Boston Braves in 1934, starting in none of them. He made 156 putouts, had 247 assists, and committed 15 errors, equivalent to .205 errors per game (estimate based on total games played in). He had 39 double plays.
Marty McManus played in 7 games at second base for the Boston Red Sox in 1931, starting in none of them. He made 12 putouts, had 33 assists, and committed 4 errors, equivalent to .571 errors per game (estimate based on total games played in). He had 2 double plays.
Marty McManus played in 11 games at third base for the Boston Red Sox in 1931, starting in none of them. He made 11 putouts, had 32 assists, and committed no errors, equivalent to 0 errors per game (estimate based on total games played in). He had 6 double plays.
Marty McManus played in 49 games at second base for the Boston Red Sox in 1932, starting in none of them. He made 123 putouts, had 161 assists, and committed 9 errors, equivalent to .184 errors per game (estimate based on total games played in). He had 26 double plays.
Marty McManus played in 30 games at third base for the Boston Red Sox in 1932, starting in none of them. He made 24 putouts, had 66 assists, and committed 8 errors, equivalent to .267 errors per game (estimate based on total games played in). He had 2 double plays.
Marty McManus played in 26 games at second base for the Boston Red Sox in 1933, starting in none of them. He made 53 putouts, had 84 assists, and committed 5 errors, equivalent to .192 errors per game (estimate based on total games played in). He had 11 double plays.
Marty McManus played in 76 games at third base for the Boston Red Sox in 1933, starting in none of them. He made 79 putouts, had 123 assists, and committed 9 errors, equivalent to .118 errors per game (estimate based on total games played in). He had 9 double plays.
In 1931, Marty McManus played in 17 games for the Boston Americans, batting in all of them. He had 62 at bats, getting 18 hits, for a .290 batting average, with 9 runs batted in. He was walked 8 times. He struck out 1 times. He hit 4 doubles, 0 triples, and 1 home runs.