Bob Porterfield played in 12 games at pitcher for the New York Yankees in 1949, starting in none of them.
He made one putout, had 10 assists, and committed 3 errors, equivalent to .25 errors per game (estimate based on total games played in). He had one double play.
Bob Porterfield played in 2 games at pitcher for the New York Yankees in 1951, starting in none of them. He made no 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.
Bob Porterfield played in 16 games at pitcher for the New York Yankees in 1948, starting in none of them. He made 4 putouts, had 8 assists, and committed no errors, equivalent to 0 errors per game (estimate based on total games played in). He had no double plays.
Bob Porterfield played in 10 games at pitcher for the New York Yankees in 1950, starting in none of them. He made one putout, had 3 assists, and committed no errors, equivalent to 0 errors per game (estimate based on total games played in). He had no double plays.
Bob Porterfield played in 31 games at pitcher for the Washington Senators in 1952, starting in none of them. He made 4 putouts, had 34 assists, and committed no errors, equivalent to 0 errors per game (estimate based on total games played in). He had no double plays.
Bob Porterfield played in 19 games at pitcher for the Washington Senators in 1951, starting in none of them. He made 8 putouts, had 23 assists, and committed 2 errors, equivalent to .105 errors per game (estimate based on total games played in). He had no double plays.
Bob Porterfield played in 34 games at pitcher for the Washington Senators in 1953, starting in none of them. He made 16 putouts, had 50 assists, and committed no errors, equivalent to 0 errors per game (estimate based on total games played in). He had 4 double plays.
Bob Porterfield played in 6 games at pitcher for the Pittsburgh Pirates in 1959, starting in none of them. He played for a total of 124 outs, equivalent to 4.59 9-inning games. He made no putouts, had no assists, and committed no errors, equivalent to 0 errors per 9-inning game. He had no double plays.
Bob Porterfield played in 2 games at pitcher for the Boston Red Sox in 1958, starting in none of them. He played for a total of 12 outs, equivalent to .44 9-inning games. He made no putouts, had no assists, and committed no errors, equivalent to 0 errors per 9-inning game. He had no double plays.
Bob Porterfield played in 37 games at pitcher for the Pittsburgh Pirates in 1958, starting in 6 of them. He played for a total of 263 outs, equivalent to 9.74 9-inning games. He made 8 putouts, had 13 assists, and committed no errors, equivalent to 0 errors per 9-inning game. He had no double plays.
Bob Porterfield played in 4 games at pitcher for the Chicago Cubs in 1959, starting in none of them. He played for a total of 20 outs, equivalent to .74 9-inning games. He made no putouts, had 2 assists, and committed no errors, equivalent to 0 errors per 9-inning game. He had one double play.
Bob Porterfield played in 32 games at pitcher for the Washington Senators in 1954, starting in 31 of them. He played for a total of 732 outs, equivalent to 27.11 9-inning games. He made 10 putouts, had 61 assists, and committed 3 errors, equivalent to .111 errors per 9-inning game. He had 4 double plays.
Bob Porterfield played in 30 games at pitcher for the Washington Senators in 1955, starting in 27 of them. He played for a total of 534 outs, equivalent to 19.78 9-inning games. He made 8 putouts, had 28 assists, and committed one error, equivalent to .051 errors per 9-inning game. He had 2 double plays.