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| First Name | Last Name | Given Name | Birth Year | Birth Month | Birth Day | Birth City | Birth Country | Height | Weight | Age | Bats | Throws |
| Mark | Leiter | Mark Edward | 1963 | 4 | 13 | Joliet | USA | 75 | 200 | -1964 | R | R |
| Year | Team | AB | HR | RBI | BA |
|---|---|---|---|---|---|
| 1990 | New York Yankees | 0 | 0 | 0 | 0.0000 |
| 1991 | Detroit Tigers | 0 | 0 | 0 | 0.0000 |
| 1992 | Detroit Tigers | 0 | 0 | 0 | 0.0000 |
| 1993 | Detroit Tigers | 0 | 0 | 0 | 0.0000 |
| 1994 | California Angels | 0 | 0 | 0 | 0.0000 |
| 1995 | San Francisco Giants | 61 | 0 | 5 | 0.0984 |
| 1996 | Montreal Expos | 25 | 0 | 3 | 0.0800 |
| 1996 | San Francisco Giants | 42 | 0 | 2 | 0.1429 |
| 1997 | Philadelphia Phillies | 51 | 0 | 4 | 0.1176 |
| 1998 | Philadelphia Phillies | 2 | 0 | 0 | 0.0000 |
| 1999 | Seattle Mariners | 0 | 0 | 0 | 0.0000 |
| 2001 | Milwaukee Brewers | 7 | 0 | 0 | 0.1429 |
| Year | Team | W | L | G | SHO |
|---|---|---|---|---|---|
| 1990 | New York Yankees | 1 | 1 | 8 | 0 |
| 1991 | Detroit Tigers | 9 | 7 | 38 | 0 |
| 1992 | Detroit Tigers | 8 | 5 | 35 | 0 |
| 1993 | Detroit Tigers | 6 | 6 | 27 | 0 |
| 1994 | California Angels | 4 | 7 | 40 | 0 |
| 1995 | San Francisco Giants | 10 | 12 | 30 | 1 |
| 1996 | Montreal Expos | 4 | 10 | 23 | 0 |
| 1996 | Montreal Expos | 4 | 2 | 12 | 0 |
| 1996 | San Francisco Giants | 4 | 10 | 23 | 0 |
| 1996 | San Francisco Giants | 4 | 2 | 12 | 0 |
| 1997 | Philadelphia Phillies | 10 | 17 | 31 | 0 |
| 1998 | Philadelphia Phillies | 7 | 5 | 69 | 0 |
| 1999 | Seattle Mariners | 0 | 0 | 2 | 0 |
| 2001 | Milwaukee Brewers | 2 | 1 | 20 | 0 |
| Year | Team | POS | E | DP | A |
|---|---|---|---|---|---|
| 1990 | New York Yankees | P | 0 | 1 | 8 |
| 1991 | Detroit Tigers | P | 1 | 1 | 17 |
| 1992 | Detroit Tigers | P | 1 | 0 | 15 |
| 1993 | Detroit Tigers | P | 2 | 1 | 11 |
| 1994 | California Angels | P | 1 | 0 | 16 |
| 1995 | San Francisco Giants | P | 4 | 3 | 19 |
| 1996 | Montreal Expos | P | 0 | 1 | 13 |
| 1996 | San Francisco Giants | P | 2 | 0 | 12 |
| 1997 | Philadelphia Phillies | P | 3 | 4 | 30 |
| 1998 | Philadelphia Phillies | P | 1 | 2 | 8 |
| 1999 | Seattle Mariners | P | 0 | 0 | 0 |
| 2001 | Milwaukee Brewers | P | 0 | 0 | 7 |