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| Player Name | Given Name | Birth Date | Birth Place | Height | Weight | Bat Hand | Throw Hand | Age |
|---|---|---|---|---|---|---|---|---|
| John Halama | John Thadeuz | 2/22/1972 | Brooklyn NY, USA | 6'5" | 215 | Left | Left | 52 |
| Year | Team Name | Hits | Bats | Homeruns | RBI | Batting AVG | Wins | Loses | Total Games | Strikeouts | Shutouts | Position | Errors | Double Plays | Assists |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1998 | Houston Astros | 0 | 10 | 0 | 0 | 0.0000 | 1 | 1 | 6 | 21 | 0 | Pitcher | 0 | 0 | 5 |
| 1999 | Seattle Mariners | 1 | 5 | 0 | 0 | 0.2000 | 11 | 10 | 38 | 105 | 1 | Pitcher | 2 | 5 | 32 |
| 2000 | Seattle Mariners | 1 | 2 | 0 | 0 | 0.5000 | 14 | 9 | 30 | 87 | 1 | Pitcher | 3 | 3 | 27 |
| 2001 | Seattle Mariners | 0 | 1 | 0 | 0 | 0.0000 | 10 | 7 | 31 | 50 | 0 | Pitcher | 1 | 0 | 21 |
| 2002 | Seattle Mariners | 0 | 0 | 0 | 0 | 6 | 5 | 31 | 70 | 0 | Pitcher | 2 | 1 | 20 | |
| 2003 | Oakland Athletics | 0 | 0 | 0 | 0 | 3 | 5 | 35 | 51 | 0 | Pitcher | 1 | 1 | 19 | |
| 2004 | Tampa Bay Devil Rays | 0 | 3 | 0 | 0 | 0.0000 | 7 | 6 | 34 | 59 | 0 | Pitcher | 0 | 0 | 14 |
| 2005 | Boston Red Sox | 0 | 0 | 0 | 0 | 1 | 1 | 30 | 26 | 0 | Pitcher | 1 | 1 | 7 | |
| 2005 | Washington Nationals | 1 | 5 | 0 | 0 | 0.2000 | 0 | 3 | 10 | 11 | 0 | Pitcher | 0 | 0 | 4 |
| 2006 | Baltimore Orioles | 0 | 0 | 0 | 0 | 3 | 1 | 17 | 12 | 0 | Pitcher | 1 | 0 | 9 |