Bobby Mathews played in 15 games at pitcher for the Cincinnati Reds in 1877, starting in none of them.
He made 7 putouts, had 18 assists, and committed 4 errors, equivalent to .267 errors per game (estimate based on total games played in). He had no double plays.
Bobby Mathews played in 49 games at pitcher for the Baltimore Canaries in 1872, starting in none of them. He made 20 putouts, had 51 assists, and committed 20 errors, equivalent to .408 errors per game (estimate based on total games played in). He had 2 double plays.
Bobby Mathews played in 27 games at pitcher for the Providence Grays in 1879, starting in none of them. He made 4 putouts, had 39 assists, and committed 2 errors, equivalent to .074 errors per game (estimate based on total games played in). He had no double plays.
Bobby Mathews played in 14 games at pitcher for the Providence Grays in 1881, starting in none of them. He made one putout, had 16 assists, and committed 4 errors, equivalent to .286 errors per game (estimate based on total games played in). He had 2 double plays.
Bobby Mathews played in 5 games at pitcher for the Boston Red Caps in 1881, starting in none of them. He made 2 putouts, had 2 assists, and committed no errors, equivalent to 0 errors per game (estimate based on total games played in). He had no double plays.
Bobby Mathews played in 44 games at pitcher for the Philadelphia Athletics in 1883, starting in none of them. He made 15 putouts, had 68 assists, and committed 12 errors, equivalent to .273 errors per game (estimate based on total games played in). He had 2 double plays.
Bobby Mathews played in 49 games at pitcher for the Philadelphia Athletics in 1884, starting in none of them. He made 8 putouts, had 78 assists, and committed 25 errors, equivalent to .51 errors per game (estimate based on total games played in). He had one double play.
Bobby Mathews played in 48 games at pitcher for the Philadelphia Athletics in 1885, starting in none of them. He made 7 putouts, had 67 assists, and committed 10 errors, equivalent to .208 errors per game (estimate based on total games played in). He had one double play.
Bobby Mathews played in 24 games at pitcher for the Philadelphia Athletics in 1886, starting in none of them. He made 5 putouts, had 38 assists, and committed 8 errors, equivalent to .333 errors per game (estimate based on total games played in). He had 3 double plays.
Bobby Mathews played in 7 games at pitcher for the Philadelphia Athletics in 1887, starting in none of them. He made 2 putouts, had 14 assists, and committed 2 errors, equivalent to .286 errors per game (estimate based on total games played in). He had one double play.
Bobby Mathews played in 19 games at pitcher for the Fort Wayne Kekiongas in 1871, starting in none of them. He made 19 putouts, had 23 assists, and committed 8 errors, equivalent to .421 errors per game (estimate based on total games played in). He had 2 double plays.
Bobby Mathews played in 52 games at pitcher for the New York Mutuals in 1873, starting in none of them. He made 27 putouts, had 58 assists, and committed 27 errors, equivalent to .519 errors per game (estimate based on total games played in). He had one double play.
Bobby Mathews played in 65 games at pitcher for the New York Mutuals in 1874, starting in none of them. He made 29 putouts, had 101 assists, and committed 38 errors, equivalent to .585 errors per game (estimate based on total games played in). He had 2 double plays.