Mike Cuellar career ERA
3.14Career Regular Season
Mike Cuellar has a career ERA of 3.14 over 15 regular seasons.
- Best season on file: 2.22 in 1966.
- Most recent: 18.90 in 1977.
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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1959 |  CIN | 2 | 0 | 0 | 15.75 | 4.0 | 5 | 4 | 2.75 | 0 |
| 1964 |  STL | 32 | 5 | 5 | 4.50 | 72.0 | 56 | 33 | 1.57 | 4 |
| 1965 |  HOU | 25 | 1 | 4 | 3.54 | 56.0 | 46 | 21 | 1.36 | 2 |
| 1966 | HOU | 38 | 12 | 10 | 2.22 | 227.1 | 175 | 52 | 1.08 | 2 |
| 1967 | HOU | 36 | 16 | 11 | 3.03 | 246.1 | 203 | 63 | 1.20 | 1 |
| 1968 | HOU | 28 | 8 | 11 | 2.74 | 170.2 | 133 | 45 | 1.15 | 1 |
| 1969 |  BAL | 39 | 23 | 11 | 2.38 | 290.2 | 182 | 79 | 1.00 | 0 |
| 1970 | BAL | 40 | 24 | 8 | 3.48 | 297.2 | 190 | 69 | 1.15 | 0 |
| 1971 | BAL | 38 | 20 | 9 | 3.08 | 292.1 | 124 | 78 | 1.12 | 0 |
| 1972 | BAL | 35 | 18 | 12 | 2.57 | 248.1 | 132 | 71 | 1.08 | 0 |
| 1973 | BAL | 38 | 18 | 13 | 3.27 | 267.0 | 140 | 84 | 1.31 | 0 |
| 1974 | BAL | 38 | 22 | 10 | 3.11 | 269.1 | 106 | 86 | 1.26 | 0 |
| 1975 | BAL | 36 | 14 | 12 | 3.66 | 256.0 | 105 | 84 | 1.22 | 0 |
| 1976 | BAL | 26 | 4 | 13 | 4.96 | 107.0 | 32 | 50 | 1.67 | 1 |
| 1977 |  LAA | 2 | 0 | 1 | 18.90 | 3.1 | 3 | 3 | 3.60 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV