Mark Thurmond career ERA
3.69Career Regular Season
Mark Thurmond has a career ERA of 3.69 over 8 regular seasons.
- Best season on file: 2.65 in 1983.
- Most recent: 3.34 in 1990.
Average of 8 regular seasons, 1983 through 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1983 |  SD | 21 | 7 | 3 | 2.65 | 115.1 | 49 | 33 | 1.19 | 0 |
| 1984 | SD | 32 | 14 | 8 | 2.97 | 178.2 | 57 | 55 | 1.28 | 0 |
| 1985 | SD | 36 | 7 | 11 | 3.97 | 138.1 | 57 | 44 | 1.43 | 2 |
| 1986 |  SD/DET | 42 | 7 | 8 | 4.56 | 122.1 | 49 | 44 | 1.50 | 3 |
| 1987 | DET | 48 | 0 | 1 | 4.23 | 61.2 | 21 | 24 | 1.74 | 5 |
| 1988 |  BAL | 43 | 1 | 8 | 4.58 | 74.2 | 29 | 27 | 1.43 | 3 |
| 1989 | BAL | 49 | 2 | 4 | 3.90 | 90.0 | 34 | 17 | 1.32 | 4 |
| 1990 |  SF | 43 | 2 | 3 | 3.34 | 56.2 | 24 | 18 | 1.25 | 4 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV