| Pitching | G | GS | CG | IP | H | R | ER | HR | SH | SF | HP | BB | K | IB | W | L | Pct | Sv | ERA | |
| Kaat,Jim* | 28 | 25 | 7 | 190.1 | 185 | 75 | 70 | 17 | 20 | 3 | 3 | 50 | 96 | 5 | 12 | - | 10 | 0.545 | 0 | 3.31 |
| Kamieniecki,Scott | 8 | 7 | 1 | 47.0 | 61 | 33 | 28 | 6 | 2 | 4 | 0 | 18 | 20 | 0 | 1 | - | 4 | 0.200 | 0 | 5.36 |
| Karsay,Steve | 15 | 0 | 0 | 17.0 | 14 | 5 | 5 | 1 | 1 | 0 | 0 | 6 | 17 | 1 | 2 | - | 1 | 0.667 | 1 | 2.65 |
| Keeton,Rickey | 5 | 0 | 0 | 4.1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | - | 0 | 1.000 | 1 | 2.08 |
| Kemmerer,Russ | 8 | 7 | 0 | 52.2 | 64 | 20 | 19 | 3 | 3 | 1 | 0 | 15 | 30 | 2 | 6 | - | 1 | 0.857 | 0 | 3.25 |
| Keough,Matt | 13 | 9 | 6 | 75.2 | 68 | 37 | 36 | 10 | 5 | 3 | 3 | 27 | 32 | 2 | 5 | - | 6 | 0.455 | 0 | 4.28 |
| Kerfeld,Charlie | 17 | 0 | 0 | 18.0 | 19 | 9 | 8 | 2 | 2 | 1 | 0 | 10 | 13 | 1 | 1 | - | 2 | 0.333 | 1 | 4.00 |
| Kester,Rick | 2 | 0 | 0 | 1.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | - | 1 | 0.000 | 0 | 0.00 |
| Key,Jimmy* | 18 | 18 | 6 | 132.1 | 112 | 48 | 46 | 11 | 11 | 4 | 0 | 31 | 61 | 2 | 7 | - | 5 | 0.583 | 0 | 3.13 |
| Kile,Darryl | 5 | 5 | 0 | 26.1 | 36 | 30 | 24 | 8 | 2 | 1 | 2 | 12 | 16 | 1 | 0 | - | 4 | 0.000 | 0 | 8.20 |
| Kim,Byung-Hyun | 12 | 0 | 0 | 12.2 | 17 | 7 | 6 | 1 | 0 | 0 | 1 | 0 | 16 | 0 | 0 | - | 2 | 0.000 | 4 | 4.26 |
| Kim,Sun-Woo | 3 | 0 | 0 | 6.2 | 10 | 5 | 4 | 1 | 1 | 0 | 0 | 2 | 2 | 0 | 0 | - | 0 | 0.000 | 0 | 5.40 |
| King,Eric | 8 | 0 | 0 | 26.1 | 17 | 5 | 5 | 2 | 1 | 0 | 1 | 8 | 16 | 1 | 2 | - | 2 | 0.500 | 0 | 1.71 |
| Kingman,Brian | 5 | 4 | 0 | 30.1 | 33 | 16 | 12 | 1 | 2 | 0 | 0 | 9 | 19 | 2 | 0 | - | 3 | 0.000 | 0 | 3.56 |
| Kirby,Clay | 9 | 9 | 1 | 64.0 | 65 | 30 | 30 | 8 | 4 | 4 | 0 | 20 | 47 | 0 | 3 | - | 2 | 0.600 | 0 | 4.22 |
| Kison,Bruce | 38 | 26 | 1 | 181.1 | 168 | 89 | 84 | 17 | 6 | 4 | 9 | 50 | 104 | 4 | 8 | - | 9 | 0.471 | 0 | 4.17 |
| Klieman,Ed | 9 | 0 | 0 | 12.2 | 11 | 7 | 7 | 2 | 2 | 0 | 0 | 9 | 5 | 0 | 1 | - | 0 | 1.000 | 0 | 4.97 |
| Klimkowski,Ron | 7 | 0 | 0 | 7.1 | 11 | 8 | 8 | 1 | 2 | 0 | 1 | 3 | 6 | 0 | 0 | - | 0 | 0.000 | 0 | 9.82 |
| Kline,Steve* | 17 | 0 | 0 | 12.2 | 18 | 8 | 8 | 2 | 1 | 2 | 0 | 6 | 5 | 1 | 2 | - | 1 | 0.667 | 0 | 5.68 |
| Klinger,Bob | 7 | 0 | 0 | 7.2 | 11 | 8 | 6 | 1 | 0 | 0 | 0 | 11 | 1 | 2 | 1 | - | 3 | 0.250 | 2 | 7.04 |
| Klink,Joe* | 12 | 0 | 0 | 11.1 | 11 | 10 | 8 | 1 | 2 | 0 | 0 | 9 | 5 | 0 | 1 | - | 0 | 1.000 | 0 | 6.35 |
| Klippstein,Johnny | 12 | 0 | 0 | 15.0 | 7 | 7 | 7 | 2 | 1 | 1 | 1 | 6 | 7 | 0 | 1 | - | 2 | 0.333 | 2 | 4.20 |
| Knepper,Bob* | 9 | 9 | 2 | 68.2 | 57 | 26 | 25 | 5 | 7 | 4 | 1 | 17 | 47 | 3 | 4 | - | 4 | 0.500 | 0 | 3.28 |
| Knight,Brandon | 1 | 0 | 0 | 1.0 | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | - | 0 | 0.000 | 0 | 9.00 |
| Knowles,Darold* | 9 | 0 | 0 | 11.0 | 13 | 8 | 8 | 2 | 1 | 0 | 1 | 4 | 9 | 0 | 1 | - | 1 | 0.500 | 0 | 6.55 |
| Knudson,Mark | 1 | 1 | 0 | 3.0 | 5 | 5 | 5 | 3 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | - | 1 | 0.000 | 0 | 15.00 |
| Korince,George | 2 | 0 | 0 | 1.0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | - | 0 | 0.000 | 0 | 0.00 |
| Koufax,Sandy* | 14 | 14 | 7 | 114.2 | 104 | 45 | 40 | 13 | 6 | 3 | 0 | 23 | 105 | 1 | 7 | - | 5 | 0.583 | 0 | 3.14 |
| Kremer,Ray | 9 | 8 | 7 | 70.2 | 62 | 30 | 28 | 7 | 2 | 2 | 0 | 17 | 38 | 1 | 7 | - | 1 | 0.875 | 1 | 3.57 |
| Kreutzer,Frank* | 2 | 0 | 0 | 1.2 | 3 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | - | 0 | 0.000 | 0 | 10.80 |