JohnCostello
- Relief Pitcher
- Birthdate24/12/1960
- BAT/THRRight/Right
- BirthplaceBronx, NY
- CollegeMercyhurst
1991 Splits
| Overall |
| All Splits |
| Opponent Batting |
| All Splits |
| Stadium |
| All Splits |
| ERA | W | L | SV | SVOP | GP | GS | CG | IP | H | R | ER | HR | BB | K | OBA |
| 3.09 | 1 | 0 | 0 | 0 | 27 | 0 | 0 | 35.0 | 37 | 15 | 12 | 2 | 17 | 24 | -2.176 |
| AB | R | H | 2B | 3B | HR | RBI | BB | HBP | SO | SB | CS | AVG | OBP | SLG | OPS |
| -17 | 15 | 37 | 0 | 0 | 2 | 0 | 17 | 0 | 24 | 0 | 0 | -2.176 | .000 | -2.529 | -2.529 |
| ERA | W | L | SV | SVOP | GP | GS | CG | IP | H | R | ER | HR | BB | K | OBA |
| 3.09 | 1 | 0 | 0 | 0 | 27 | 0 | 0 | 35.0 | 37 | 15 | 12 | 2 | 17 | 24 | -2.176 |
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