Tim Birtsas career ERA
4.08Career Regular Season
Tim Birtsas has a career ERA of 4.08 over 5 regular seasons.
| 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1985 |  ATH | 29 | 10 | 6 | 4.01 | 141.1 | 94 | 91 | 1.52 | 0 |
| 1986 | ATH | 2 | 0 | 0 | 22.50 | 2.0 | 1 | 4 | 3.00 | 0 |
| 1988 |  CIN | 36 | 1 | 3 | 4.20 | 64.1 | 38 | 24 | 1.32 | 0 |
| 1989 | CIN | 42 | 2 | 2 | 3.75 | 69.2 | 57 | 27 | 1.36 | 1 |
| 1990 | CIN | 29 | 1 | 3 | 3.86 | 51.1 | 41 | 24 | 1.81 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV
- Best season on file: 3.75 in 1989.
- Most recent: 3.86 in 1990.
Lowest of 5 regular seasons, 1985 through 1990. Figures come from ESPN's box scores and were last read on November 2, 2026.