John Costello was a pitcher in MLB. Across 119 career appearances, with a 2.97 ERA and 104 strikeouts. This page covers season stats, team history, salary history, and career profile.
Season-by-season performance, contract terms, and the complete archive.
| Year | Team | W | L | ERA | G | GS | SV | IP | H | ER | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1988 | STL | 5 | 2 | 1.81 | 36 | 0 | 1 | 49.2 | 44 | 10 | 25 | 38 | 1.39 |
| 1989 | STL | 5 | 4 | 3.32 | 48 | 0 | 3 | 62.1 | 48 | 23 | 20 | 40 | 1.09 |
| 1990 | MON | 0 | 0 | 5.68 | 4 | 0 | 0 | 6.1 | 5 | 4 | 1 | 1 | 0.95 |
| 1990 | STL | 0 | 0 | 6.23 | 4 | 0 | 0 | 4.1 | 7 | 3 | 1 | 1 | 1.85 |
| 1991 | SD | 1 | 0 | 3.09 | 27 | 0 | 0 | 35.0 | 37 | 12 | 17 | 24 | 1.54 |
| Career Totals | — | 11 | 6 | 2.97 | 119 | 0 | 4 | 157.2 | 141 | 52 | 64 | 104 | 1.30 |
| Year | Team | G | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | AVG | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1988 | STL | 36 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | .000 | .000 | .000 | .000 |
| 1989 | STL | 48 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | .000 | .000 | .000 | .000 |
| 1990 | MON | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1990 | STL | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1991 | SD | 27 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 |
| Career Totals | — | 119 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | .000 | .000 | .000 | .000 |
| Year | Salary |
|---|---|
| 1989 | $85,000 |
| 1990 | $105,000 |
Career Total: $190,000 (2 seasons)
Average: $95,000
Salary data is available from 1985 onward.
TGN salary figures show base salary. Signing bonuses, accounting allocations, and luxury-tax values are listed separately where available.