Don Brennan played in 6 games at pitcher for the New York Giants in 1937, starting in none of them.
He made one putout, 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.
Ad Brennan played in just one game at pitcher for the Cleveland Indians in 1918 and did not start. He made no 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.
Don Brennan played in 10 games at pitcher for the Cincinnati Reds in 1937, starting in none of them. He made no putouts, had 4 assists, and committed no errors, equivalent to 0 errors per game (estimate based on total games played in). He had no double plays.
Ad Brennan played in 19 games at pitcher for the Philadelphia Phillies in 1910, starting in none of them. He made 2 putouts, had 13 assists, and committed one error, equivalent to .053 errors per game (estimate based on total games played in). He had one double play.
Ad Brennan played in 5 games at pitcher for the Philadelphia Phillies in 1911, starting in none of them. He made one putout, had 8 assists, and committed one error, equivalent to .2 errors per game (estimate based on total games played in). He had no double plays.
Ad Brennan played in 27 games at pitcher for the Philadelphia Phillies in 1912, starting in none of them. He made 7 putouts, had 53 assists, and committed one error, equivalent to .037 errors per game (estimate based on total games played in). He had one double play.
Ad Brennan played in 40 games at pitcher for the Philadelphia Phillies in 1913, starting in none of them. He made 12 putouts, had 53 assists, and committed 4 errors, equivalent to .1 errors per game (estimate based on total games played in). He had one double play.
Ad Brennan played in 19 games at pitcher for the Chicago Whales in 1915, starting in none of them. He made 2 putouts, had 23 assists, and committed one error, equivalent to .053 errors per game (estimate based on total games played in). He had no double plays.
Don Brennan played in 28 games at pitcher for the Cincinnati Reds in 1934, starting in none of them. He made one putout, had 15 assists, and committed one error, equivalent to .036 errors per game (estimate based on total games played in). He had no double plays.
Don Brennan played in 38 games at pitcher for the Cincinnati Reds in 1935, starting in none of them. He made 4 putouts, had 14 assists, and committed no errors, equivalent to 0 errors per game (estimate based on total games played in). He had one double play.
Don Brennan played in 41 games at pitcher for the Cincinnati Reds in 1936, starting in none of them. He made one putout, had 19 assists, and committed 2 errors, equivalent to .049 errors per game (estimate based on total games played in). He had 2 double plays.
Ad Brennan played in 16 games at pitcher for the Chicago Chi-Feds in 1914, starting in none of them. He made one putout, had 23 assists, and committed 3 errors, equivalent to .188 errors per game (estimate based on total games played in). He had 2 double plays.
Don Brennan played in 18 games at pitcher for the New York Yankees in 1933, starting in none of them. He made 3 putouts, had 23 assists, and committed 2 errors, equivalent to .111 errors per game (estimate based on total games played in). He had 2 double plays.