JackO'Connor
- Relief Pitcher
- Birthdate2/6/1958
- BAT/THRLeft/Left
- BirthplaceTwenty-Nine Palms, United States
1987 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 |
| 4.30 | 1 | 1 | 2 | 0 | 29 | 0 | 0 | 46.0 | 46 | 23 | 22 | 5 | 23 | 33 | -2.000 |
| AB | R | H | 2B | 3B | HR | RBI | BB | HBP | SO | SB | CS | AVG | OBP | SLG | OPS |
| -23 | 23 | 46 | 0 | 0 | 5 | 0 | 23 | 0 | 33 | 0 | 0 | -2.000 | .000 | -2.652 | -2.652 |
| ERA | W | L | SV | SVOP | GP | GS | CG | IP | H | R | ER | HR | BB | K | OBA |
| 4.30 | 1 | 1 | 2 | 0 | 29 | 0 | 0 | 46.0 | 46 | 23 | 22 | 5 | 23 | 33 | -2.000 |
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