Koosman (222-209 career record) has a 3.36 earned run average while allowing 8.5 hits per 9 innings. He has a strikeout to walk ratio of 2.13 and he has gone up against 15,996 batters thus far in his career. During his career, Koosman has surrendered 3,635 base knocks while totaling 2,556 K’s in 3,839 innings pitched. He has given up 1,433 ER’s while earning a WHIP of 1.259 and a FIP of 3.3.
Jerry Koosman Stats
| Year | Team | G | IP | W | L | WHIP | ERA | H | BB | SO | FIP | SV | GS | HR | ER | R | BF | SO/W | H/9 | SO/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | 612 | 3839.1 | 222 | 209 | 1.259 | 3.36 | 3,635 | 1,198 | 2,556 | 3.26 | 17 | 527 | 290 | 1,433 | 1,608 | 15,996 | 2.13 | 8.5 | 6.0 | |
| 1985 | PHI | 19 | 99.1 | 6 | 4 | 1.419 | 4.62 | 107 | 34 | 60 | 4.43 | 0 | 18 | 14 | 51 | 56 | 433 | 1.76 | 9.7 | 5.4 |
| 1984 | PHI | 36 | 224.0 | 14 | 15 | 1.304 | 3.25 | 232 | 60 | 137 | 2.85 | 0 | 34 | 8 | 81 | 95 | 950 | 2.28 | 9.3 | 5.5 |
| 1983 | CHW | 37 | 169.2 | 11 | 7 | 1.350 | 4.77 | 176 | 53 | 90 | 4.19 | 2 | 24 | 19 | 90 | 96 | 730 | 1.70 | 9.3 | 4.8 |
| 1982 | CHW | 42 | 173.1 | 11 | 7 | 1.338 | 3.84 | 194 | 38 | 88 | 3.07 | 3 | 19 | 9 | 74 | 81 | 726 | 2.32 | 10.1 | 4.6 |
| 1981 | TOT | 27 | 121.1 | 4 | 13 | 1.368 | 4.01 | 125 | 41 | 76 | 3.43 | 5 | 16 | 10 | 54 | 59 | 517 | 1.85 | 9.3 | 5.6 |
| 1981 | MIN | 19 | 94.1 | 3 | 9 | 1.399 | 4.20 | 98 | 34 | 55 | 3.62 | 5 | 13 | 8 | 44 | 49 | 404 | 1.62 | 9.3 | 5.2 |
| 1981 | CHW | 8 | 27.0 | 1 | 4 | 1.259 | 3.33 | 27 | 7 | 21 | 2.79 | 0 | 3 | 2 | 10 | 10 | 113 | 3.00 | 9.0 | 7.0 |
| 1980 | MIN | 38 | 243.1 | 16 | 13 | 1.319 | 4.03 | 252 | 69 | 149 | 3.72 | 2 | 34 | 24 | 109 | 119 | 1,022 | 2.16 | 9.3 | 5.5 |
| 1979 | MIN | 37 | 263.2 | 20 | 13 | 1.331 | 3.38 | 268 | 83 | 157 | 3.46 | 0 | 36 | 19 | 99 | 108 | 1,101 | 1.89 | 9.1 | 5.4 |
| 1978 | NYM | 38 | 235.1 | 3 | 15 | 1.296 | 3.75 | 221 | 84 | 160 | 3.34 | 2 | 32 | 17 | 98 | 110 | 986 | 1.90 | 8.5 | 6.1 |
| 1977 | NYM | 32 | 226.2 | 8 | 20 | 1.218 | 3.49 | 195 | 81 | 192 | 3.14 | 0 | 32 | 17 | 88 | 102 | 940 | 2.37 | 7.7 | 7.6 |
| 1976 | NYM | 34 | 247.1 | 21 | 10 | 1.096 | 2.69 | 205 | 66 | 200 | 2.83 | 0 | 32 | 19 | 74 | 81 | 994 | 3.03 | 7.5 | 7.3 |
| 1975 | NYM | 36 | 239.2 | 14 | 13 | 1.385 | 3.42 | 234 | 98 | 173 | 3.45 | 2 | 34 | 19 | 91 | 106 | 1,018 | 1.77 | 8.8 | 6.5 |
| 1974 | NYM | 35 | 265.0 | 15 | 11 | 1.294 | 3.36 | 258 | 85 | 188 | 2.99 | 0 | 35 | 16 | 99 | 113 | 1,118 | 2.21 | 8.8 | 6.4 |
| 1973 | NYM | 35 | 263.0 | 14 | 15 | 1.179 | 2.84 | 234 | 76 | 156 | 3.18 | 0 | 35 | 18 | 83 | 93 | 1,071 | 2.05 | 8.0 | 5.3 |
| 1972 | NYM | 34 | 163.0 | 11 | 12 | 1.270 | 4.14 | 155 | 52 | 147 | 2.78 | 1 | 24 | 14 | 75 | 81 | 692 | 2.83 | 8.6 | 8.1 |
| 1971 | NYM | 26 | 165.2 | 6 | 11 | 1.274 | 3.04 | 160 | 51 | 96 | 3.18 | 0 | 24 | 12 | 56 | 66 | 694 | 1.88 | 8.7 | 5.2 |
| 1970 | NYM | 30 | 212.0 | 12 | 7 | 1.226 | 3.14 | 189 | 71 | 118 | 3.91 | 0 | 29 | 22 | 74 | 87 | 884 | 1.66 | 8.0 | 5.0 |
| 1969 | NYM | 32 | 241.0 | 17 | 9 | 1.058 | 2.28 | 187 | 68 | 180 | 2.67 | 0 | 32 | 14 | 61 | 66 | 957 | 2.65 | 7.0 | 6.7 |
| 1968 | NYM | 35 | 263.2 | 19 | 12 | 1.100 | 2.08 | 221 | 69 | 178 | 2.70 | 0 | 34 | 16 | 61 | 72 | 1,058 | 2.58 | 7.5 | 6.1 |
| 1967 | NYM | 9 | 22.1 | 0 | 2 | 1.836 | 6.04 | 22 | 19 | 11 | 5.85 | 0 | 3 | 3 | 15 | 17 | 105 | 0.58 | 8.9 | 4.4 |
