Jay Aldrich career ERA
4.72Career Regular Season
Jay Aldrich has a career ERA of 4.72 over 3 regular seasons.
- Best season on file: 3.29 in 1989.
- Most recent: 8.25 in 1990.
Figures come from ESPN's box scores and were last read on September 22, 2026.
| GP: Games the player appeared in, however briefly. | W: Games in which this pitcher was credited with the win. | L: Games in which this pitcher was charged with the loss. | ERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent. | IP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs. | K: Batters this pitcher struck out. | BB: Times the batter reached first base on four balls. | WHIP: Walks and hits allowed per inning pitched — lower is better. Around 1.00 is elite. | SV: Games finished by protecting a narrow lead to the last out. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1987 |  MIL | 31 | 3 | 1 | 4.94 | 58.1 | 22 | 13 | 1.44 | 0 |
| 1989 |  MIL/ATL | 24 | 2 | 2 | 3.29 | 38.1 | 19 | 19 | 1.30 | 1 |
| 1990 |  BAL | 7 | 1 | 2 | 8.25 | 12.0 | 5 | 7 | 2.00 | 1 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV