John Costello
| Date | Team | Opponent | Result | IP | H | R | ER | BB | SO | PA | 2B | 3B | HR | GO | FO | MISC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1989-04-03 | STL | @ NYM | L, 8-4 | 2.0 | 2 | 0 | 0 | 0 | 1 | 7 | 0 | 0 | 0 | 2 | 2 | RP |
| 1989-04-08 | STL | @ PHI | L, 5-4 | 0.2 | 2 | 1 | 1 | 1 | 2 | 5 | 1 | 0 | 0 | 0 | 0 | RP, L |
| 1989-04-15 | STL | vs. NYM | W, 3-2 | 0.2 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 0 | 0 | 0 | 1 | RP |
| 1989-04-18 | STL | vs. PIT | L, 4-3 | 0.0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | RP |
| 1989-04-19 | STL | vs. PIT | L, 7-5 | 1.0 | 1 | 0 | 0 | 1 | 1 | 5 | 0 | 0 | 0 | 1 | 1 | RP |
| 1989-04-25 | STL | vs. SFG | L, 4-0 | 1.0 | 0 | 1 | 1 | 4 | 0 | 6 | 0 | 0 | 0 | 0 | 2 | RP |
| 1989-05-21 | STL | @ ATL | W, 6-1 | 0.2 | 1 | 0 | 0 | 1 | 2 | 4 | 1 | 0 | 0 | 0 | 0 | RP |
| 1989-05-23 | STL | @ CIN | L, 6-4 | 3.0 | 0 | 0 | 0 | 0 | 3 | 8 | 0 | 0 | 0 | 0 | 5 | RP |
| 1989-05-28 | STL | vs. ATL | T, 3-3 | 1.1 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 2 | 2 | RP |
| 1989-05-30 | STL | vs. HOU | L, 8-4 | 0.1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | RP |
| 1989-06-02 | STL | vs. CHC | L, 5-2 | 0.2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 2 | RP |
| 1989-06-03 | STL | vs. CHC | W, 6-5 | 0.2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 1 | RP |
| 1989-06-05 | STL | @ MON | W, 5-4 | 1.0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 0 | 0 | 1 | 1 | RP, SV |
| 1989-06-07 | STL | @ MON | W, 5-2 | 2.2 | 1 | 0 | 0 | 0 | 2 | 9 | 0 | 0 | 0 | 1 | 5 | RP |
| 1989-06-11 | STL | @ CHC | W, 10-7 | 0.2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 2 | 0 | RP |
| 1989-06-12 | STL | @ CHC | L, 10-3 | 0.2 | 4 | 4 | 4 | 1 | 0 | 7 | 1 | 1 | 0 | 0 | 2 | RP |
| 1989-06-18 | STL | vs. PIT | L, 12-4 | 3.0 | 0 | 0 | 0 | 0 | 1 | 10 | 0 | 0 | 0 | 0 | 8 | RP |
| 1989-06-20 | STL | @ PHI | W, 6-4 | 1.2 | 2 | 1 | 1 | 0 | 1 | 7 | 1 | 0 | 0 | 0 | 4 | RP |
| 1989-06-30 | STL | vs. SDP | W, 4-3 | 2.2 | 2 | 0 | 0 | 1 | 3 | 11 | 0 | 0 | 0 | 0 | 4 | RP |
| 1989-07-05 | STL | vs. LAD | W, 3-2 | 1.0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 1 | RP, W |
| 1989-07-07 | STL | vs. SFG | W, 6-4 | 0.1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | RP |
| 1989-07-09 | STL | vs. SFG | W, 6-4 | 0.2 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | RP |
| 1989-07-16 | STL | @ LAD | L, 3-2 | 2.0 | 0 | 0 | 0 | 1 | 3 | 7 | 0 | 0 | 0 | 2 | 1 | RP |
| 1989-07-19 | STL | @ SFG | L, 7-5 | 2.0 | 0 | 0 | 0 | 0 | 4 | 6 | 0 | 0 | 0 | 0 | 2 | RP |
| 1989-07-23 | STL | @ SDP | W, 3-2 | 1.1 | 2 | 1 | 1 | 0 | 1 | 6 | 0 | 0 | 0 | 2 | 1 | RP |
| 1989-07-25 | STL | vs. CHC | L, 4-2 | 2.0 | 1 | 1 | 1 | 0 | 0 | 7 | 0 | 0 | 1 | 1 | 5 | RP |
| 1989-08-03 | STL | vs. NYM | W, 6-5 | 2.2 | 1 | 0 | 0 | 0 | 0 | 9 | 1 | 0 | 0 | 4 | 4 | RP |
| 1989-08-10 | STL | @ NYM | L, 6-4 | 0.1 | 4 | 4 | 4 | 0 | 0 | 5 | 1 | 0 | 1 | 0 | 1 | RP, L |
| 1989-08-14 | STL | vs. ATL | W, 5-2 | 4.0 | 0 | 0 | 0 | 0 | 1 | 14 | 0 | 0 | 0 | 3 | 8 | RP, W |
| 1989-08-16 | STL | vs. ATL | W, 3-2 | 0.1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | RP |
| 1989-08-18 | STL | @ CIN | L, 8-3 | 2.0 | 1 | 1 | 1 | 0 | 2 | 7 | 0 | 0 | 1 | 0 | 4 | RP |
| 1989-08-23 | STL | @ ATL | L, 3-0 | 2.0 | 4 | 1 | 1 | 1 | 2 | 11 | 1 | 0 | 0 | 1 | 3 | RP |
| 1989-08-27 | STL | @ HOU | L, 6-3 | 1.0 | 3 | 2 | 2 | 2 | 0 | 7 | 1 | 0 | 0 | 1 | 1 | RP |
| 1989-08-28 | STL | vs. CIN | W, 3-2 | 1.0 | 0 | 0 | 0 | 1 | 0 | 4 | 0 | 0 | 0 | 1 | 2 | RP, W |
| 1989-09-01 | STL | vs. HOU | L, 6-3 | 2.1 | 4 | 2 | 2 | 0 | 2 | 12 | 0 | 1 | 1 | 3 | 2 | RP, L |
| 1989-09-03 | STL | vs. HOU | W, 4-3 | 2.0 | 1 | 0 | 0 | 0 | 1 | 7 | 0 | 0 | 0 | 3 | 2 | RP |
| 1989-09-06 | STL | @ NYM | W, 3-2 | 0.1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | RP |
| 1989-09-08 | STL | @ CHC | W, 11-8 | 3.0 | 3 | 2 | 2 | 1 | 1 | 12 | 1 | 0 | 1 | 3 | 4 | RP |
| 1989-09-11 | STL | vs. PIT | L, 3-1 | 0.0 | 1 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | RP |
| 1989-09-15 | STL | @ PHI | L, 2-0 | 1.0 | 1 | 0 | 0 | 0 | 1 | 4 | 0 | 0 | 0 | 0 | 2 | RP |
| 1989-09-15 | STL | @ PHI | W, 7-6 | 1.2 | 1 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 5 | RP, W |
| 1989-09-17 | STL | @ PHI | L, 9-5 | 1.0 | 0 | 1 | 1 | 1 | 1 | 4 | 0 | 0 | 0 | 1 | 1 | RP |
| 1989-09-17 | STL | @ PHI | W, 2-0 | 0.1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | RP, SV |
| 1989-09-20 | STL | vs. NYM | W, 5-3 | 0.1 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | RP |
| 1989-09-22 | STL | vs. PHI | W, 2-1 | 1.0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 3 | RP, W |
| 1989-09-24 | STL | vs. PHI | W, 2-1 | 1.0 | 1 | 0 | 0 | 0 | 1 | 4 | 1 | 0 | 0 | 0 | 2 | RP, SV |
| 1989-09-29 | STL | vs. CHC | W, 7-5 | 0.2 | 1 | 0 | 0 | 0 | 0 | 3 | 1 | 0 | 0 | 2 | 0 | RP |
| 1989-09-30 | STL | vs. CHC | L, 6-4 | 0.2 | 3 | 2 | 1 | 0 | 0 | 5 | 1 | 0 | 0 | 1 | 1 | RP, L |
| Total Games: 48 | ||||||||||||||||