John Costello had a 5-2 record with an ERA of 1.81, 38 strikeouts and 1 save in 36 appearances in his rookie season in 1988.
| NAME | SEASON | TM | G | W | L | W% | GS | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | ERA- | FIP | FIP- | H/9 | PRAA | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | J. Costello | 1988 | 36 | 5 | 2 | .714 | 0 | 1.81 | 38 | 0 | 0 | 1 | 49.2 | 44 | 10 | 15 | 3 | 25 | 0 | 15 | 4 | 214 | 0 | 6.89 | 4.53 | 1.52 | 0.54 | 17.8 | 11.7 | 1.39 | .277 | 2.72 | 52 | 3.53 | 102 | 7.97 | -0.3 |
STL| NAME | DATE | SEASON | TM | OPP | DEC | GS | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | | J. Costello | 10/2/1988 | 1988 | @ | 0 | 0.00 | 4 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 6 | 0 | |||
| 2 | | J. Costello | 9/27/1988 | 1988 | @ | 0 | 0.00 | 0 | 0 | 0 | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | |||
| 3 | | J. Costello | 9/24/1988 | 1988 | vs | 0 | 0.00 | 0 | 0 | 0 | 0 | 1.0 | 2 | 0 | 4 | 0 | 2 | 0 | 1 | 0 | 8 | 0 | |||
| 4 | | J. Costello | 9/23/1988 | 1988 | vs | W | 0 | 0.00 | 0 | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | ||
| 5 | | J. Costello | 9/19/1988 | 1988 | vs | 0 | 0.00 | 0 | 0 | 0 | 0 | 0.2 | 1 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 5 | 0 | |||
| 6 | | J. Costello | 9/17/1988 | 1988 | @ | L | 0 | 7.71 | 1 | 0 | 0 | 0 | 2.1 | 5 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 13 | 0 | ||
| 7 | | J. Costello | 9/14/1988 | 1988 | @ | 0 | 16.20 | 1 | 0 | 0 | 0 | 1.2 | 4 | 3 | 3 | 1 | 0 | 0 | 0 | 0 | 9 | 0 | |||
| 8 | | J. Costello | 9/11/1988 | 1988 | vs | 0 | 0.00 | 1 | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | |||
| 9 | | J. Costello | 9/4/1988 | 1988 | @ | 0 | 0.00 | 2 | 0 | 0 | 0 | 2.2 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 12 | 0 | |||
| 10 | | J. Costello | 9/3/1988 | 1988 | @ | 0 | 54.00 | 0 | 0 | 0 | 0 | 0.1 | 2 | 2 | 2 | 0 | 3 | 0 | 0 | 1 | 6 | 0 | |||
| 11 | | J. Costello | 8/29/1988 | 1988 | @ | 0 | 0.00 | 2 | 0 | 0 | 1 | 1.2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 5 | 0 | |||
| 12 | | J. Costello | 8/25/1988 | 1988 | @ | 0 | 0.00 | 2 | 0 | 0 | 0 | 2.2 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 12 | 0 | |||
| 13 | | J. Costello | 8/22/1988 | 1988 | vs | 0 | 0.00 | 2 | 0 | 0 | 0 | 2.0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 6 | 0 | |||
| 14 | | J. Costello | 8/19/1988 | 1988 | vs | W | 0 | 0.00 | 1 | 0 | 0 | 0 | 2.2 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 10 | 0 | ||
| 15 | | J. Costello | 8/16/1988 | 1988 | vs | 0 | 0.00 | 0 | 0 | 0 | 0 | 0.1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 3 | 0 | |||
| 16 | | J. Costello | 8/14/1988 | 1988 | @ | 0 | 0.00 | 0 | 0 | 0 | 0 | 0.2 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 3 | 0 | |||
| 17 | | J. Costello | 8/11/1988 | 1988 | @ | L | 0 | 2.70 | 4 | 0 | 0 | 0 | 3.1 | 5 | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 16 | 0 | ||
| 18 | | J. Costello | 8/6/1988 | 1988 | vs | 0 | 0.00 | 4 | 0 | 0 | 0 | 3.0 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 11 | 0 | |||
| 19 | | J. Costello | 8/4/1988 | 1988 | vs | 0 | 0.00 | 1 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 8 | 0 | |||
| 20 | | J. Costello | 7/28/1988 | 1988 | @ | 0 | 0.00 | 0 | 0 | 0 | 0 | 0.1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | |||
| 21 | | J. Costello | 7/27/1988 | 1988 | vs | 0 | 0.00 | 0 | 0 | 0 | 0 | 0.1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 2 | 0 | |||
| 22 | | J. Costello | 7/24/1988 | 1988 | vs | 0 | 0.00 | 0 | 0 | 0 | 0 | 1.0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 4 | 0 | |||
| 23 | | J. Costello | 7/22/1988 | 1988 | vs | 0 | 0.00 | 1 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 8 | 0 | |||
| 24 | | J. Costello | 7/20/1988 | 1988 | vs | W | 0 | 0.00 | 1 | 0 | 0 | 0 | 1.1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | ||
| 25 | | J. Costello | 7/16/1988 | 1988 | vs | W | 0 | 0.00 | 1 | 0 | 0 | 0 | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | ||
| Total | 0 | 1.81 | 38 | 0 | 0 | 1 | 49.2 | 44 | 10 | 15 | 3 | 25 | 0 | 15 | 4 | 214 | 0 | ||||||||
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