Jim Kaat played in Major League Baseball from 1959 to 1983, appearing in 898 games over 25 seasons. He recorded a total of 283 W and 237 L, an ERA of 3.45, 2,461 SO, a WHIP of 1.259, and a WAR of 45.1.
🧾 Basic Profile
 | |
| Name | Jim Kaat |
| Date of Birth | November 7, 1938 |
| Nationality |  United States |
| MLB Debut | 1959 |
Jim Kaat Yearly Pitching Stats
This chart shows the season-by-season changes in ERA, SO, and IP for Jim Kaat.
📊 Career Summary
Jim Kaat appeared in 898 games over 25 MLB seasons from 1959 to 1983. Below are his cumulative stats and MLB all-time rankings:
| GS | 625 (MLB Rank: 17) |
| GF | 102 (MLB Rank: 749) |
| W | 283 (MLB Rank: 31) |
| L | 237 (MLB Rank: 16) |
| SV | 17 (MLB Rank: 859) |
| ERA | 3.45 (MLB Rank: 2,361) |
| IP | 4530.1 (MLB Rank: 25) |
| SHO | 31 (MLB Rank: 103) |
| CG | 180 (MLB Rank: 173) |
| SO | 2,461 (MLB Rank: 44) |
| BB | 1083 (MLB Rank: 82) |
| H | 4,620 (MLB Rank: 16) |
| HR | 395 (MLB Rank: 15) |
| SO9 | 4.89 (MLB Rank: 5,655) |
| BB9 | 2.15 (MLB Rank: 10,441) |
| H9 | 9.18 (MLB Rank: 6,606) |
| HR9 | 0.78 (MLB Rank: 5,542) |
| WHIP | 1.259 (MLB Rank: 9,920) |
| WAR | 45.1 (MLB Rank: 135) |
📊 Last Season Summary (1983)
In his final season (1983), Jim Kaat recorded the following stats:
| GS | 0 |
| GF | 9 |
| W | 0 |
| ERA | 3.89 |
| IP | 34.2 |
| SO | 19 |
| BB | 10 |
| H | 48 |
| HR | 5 |
| SO9 | 4.93 |
| BB9 | 2.6 |
| H9 | 12.46 |
| HR9 | 1.3 |
| WHIP | 1.673 |
| WAR | −0.2 |
📈 Seasonal Highlights
- Most Wins: 1966, 25 W
- Most SO: 1967, 211 SO
- Most IP: 1966, 304.2 IP
- Best WAR: 1975, 7.7 WAR
- Best ERA: 1972, 2.07 ERA
🎯 Postseason Performance
Jim Kaat appeared in 9 games during the postseason. He recorded an ERA of 4.09, pitched 24.2 IP, struck out 10 batters, with 1 W and 3 L.
Jim Kaat Career Pitching Stats Overview
| season | W | L | ERA | W-L% | SV | SO | IP | WAR | WHIP | HR | H | BB | R | ER | ERA+ | FIP | SO9 | SO/BB | GS | G | GF | CG | SHO | HR9 | H9 | BB9 | BK | HBP | IBB | WP | BF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1959 | 0 | 2 | 12.6 | 0 | 0 | 2 | 5 | -0.5 | 2.2 | 1 | 7 | 4 | 9 | 7 | 34 | 7.94 | 3.6 | 0.5 | 2 | 3 | 0 | 0 | 0 | 1.8 | 12.6 | 7.2 | 0 | 2 | 0 | 0 | 29 |
1960 | 1 | 5 | 5.58 | 0.167 | 0 | 25 | 50 | -0.7 | 1.58 | 8 | 48 | 31 | 39 | 31 | 72 | 5.77 | 4.5 | 0.81 | 9 | 13 | 2 | 0 | 0 | 1.4 | 8.6 | 5.6 | 0 | 5 | 2 | 2 | 228 |
1961 | 9 | 17 | 3.9 | 0.346 | 0 | 122 | 200.2 | 2.1 | 1.346 | 12 | 188 | 82 | 105 | 87 | 108 | 3.53 | 5.5 | 1.49 | 29 | 36 | 3 | 8 | 1 | 0.5 | 8.4 | 3.7 | 1 | 11 | 1 | 10 | 865 |
1962 | 18 | 14 | 3.14 | 0.563 | 1 | 173 | 269 | 5.4 | 1.182 | 23 | 243 | 75 | 106 | 94 | 130 | 3.48 | 5.8 | 2.31 | 35 | 39 | 2 | 16 | 5 | 0.8 | 8.1 | 2.5 | 0 | 18 | 5 | 13 | 1112 |
1963 | 10 | 10 | 4.19 | 0.5 | 1 | 105 | 178.1 | -0.6 | 1.307 | 24 | 195 | 38 | 96 | 83 | 87 | 3.84 | 5.3 | 2.76 | 27 | 31 | 1 | 7 | 1 | 1.2 | 9.8 | 1.9 | 0 | 9 | 1 | 6 | 764 |
1964 | 17 | 11 | 3.22 | 0.607 | 0 | 171 | 243 | 3 | 1.198 | 23 | 231 | 60 | 100 | 87 | 112 | 3.28 | 6.3 | 2.85 | 34 | 36 | 1 | 13 | 0 | 0.9 | 8.6 | 2.2 | 1 | 9 | 5 | 13 | 1009 |
1965 | 18 | 11 | 2.83 | 0.621 | 2 | 154 | 264.1 | 0.4 | 1.248 | 25 | 267 | 63 | 121 | 83 | 126 | 3.35 | 5.2 | 2.44 | 42 | 45 | 2 | 7 | 2 | 0.9 | 9.1 | 2.1 | 0 | 5 | 6 | 3 | 1115 |
1966 | 25 | 13 | 2.75 | 0.658 | 0 | 205 | 304.2 | 4.5 | 1.07 | 29 | 271 | 55 | 114 | 93 | 131 | 3.02 | 6.1 | 3.73 | 41 | 41 | 0 | 19 | 3 | 0.9 | 8 | 1.6 | 0 | 3 | 4 | 12 | 1227 |
1967 | 16 | 13 | 3.04 | 0.552 | 0 | 211 | 263.1 | 4.2 | 1.181 | 21 | 269 | 42 | 110 | 89 | 115 | 2.55 | 7.2 | 5.02 | 38 | 42 | 1 | 13 | 2 | 0.7 | 9.2 | 1.4 | 1 | 9 | 2 | 9 | 1100 |
1968 | 14 | 12 | 2.94 | 0.538 | 0 | 130 | 208 | 3.3 | 1.115 | 16 | 192 | 40 | 78 | 68 | 107 | 2.76 | 5.6 | 3.25 | 29 | 30 | 0 | 9 | 2 | 0.7 | 8.3 | 1.7 | 0 | 3 | 0 | 5 | 854 |
1969 | 14 | 13 | 3.49 | 0.519 | 1 | 139 | 242.1 | 1.4 | 1.349 | 23 | 252 | 75 | 114 | 94 | 106 | 3.64 | 5.2 | 1.85 | 32 | 40 | 4 | 10 | 0 | 0.9 | 9.4 | 2.8 | 0 | 9 | 15 | 9 | 1048 |
1970 | 14 | 10 | 3.56 | 0.583 | 0 | 120 | 230.1 | 1.2 | 1.311 | 26 | 244 | 58 | 110 | 91 | 107 | 3.86 | 4.7 | 2.07 | 34 | 45 | 3 | 4 | 1 | 1 | 9.5 | 2.3 | 0 | 3 | 8 | 11 | 972 |
1971 | 13 | 14 | 3.32 | 0.481 | 0 | 137 | 260.1 | 4.3 | 1.237 | 16 | 275 | 47 | 104 | 96 | 107 | 2.81 | 4.7 | 2.91 | 38 | 39 | 0 | 15 | 4 | 0.6 | 9.5 | 1.6 | 0 | 6 | 9 | 8 | 1098 |
1972 | 10 | 2 | 2.06 | 0.833 | 0 | 64 | 113.1 | 1.8 | 1.006 | 6 | 94 | 20 | 36 | 26 | 157 | 2.49 | 5.1 | 3.2 | 15 | 15 | 0 | 5 | 0 | 0.5 | 7.5 | 1.6 | 0 | 0 | 2 | 2 | 443 |
1973 | 15 | 13 | 4.37 | 0.536 | 0 | 109 | 224.1 | 1.2 | 1.306 | 30 | 250 | 43 | 124 | 109 | 91 | 3.96 | 4.4 | 2.53 | 35 | 36 | 1 | 10 | 3 | 1.2 | 10 | 1.7 | 0 | 4 | 1 | 3 | 951 |
1974 | 21 | 13 | 2.92 | 0.618 | 0 | 142 | 277.1 | 7.1 | 1.175 | 18 | 263 | 63 | 106 | 90 | 129 | 3.14 | 4.6 | 2.25 | 39 | 42 | 0 | 15 | 3 | 0.6 | 8.5 | 2 | 0 | 6 | 3 | 4 | 1139 |
1975 | 20 | 14 | 3.11 | 0.588 | 0 | 142 | 303.2 | 7.7 | 1.311 | 20 | 321 | 77 | 121 | 105 | 126 | 3.36 | 4.2 | 1.84 | 41 | 43 | 1 | 12 | 1 | 0.6 | 9.5 | 2.3 | 2 | 9 | 0 | 0 | 1279 |
1976 | 12 | 14 | 3.48 | 0.462 | 0 | 83 | 227.2 | 2.3 | 1.199 | 21 | 241 | 32 | 95 | 88 | 102 | 3.52 | 3.3 | 2.59 | 35 | 38 | 1 | 7 | 1 | 0.8 | 9.5 | 1.3 | 0 | 0 | 3 | 1 | 924 |
1977 | 6 | 11 | 5.39 | 0.353 | 0 | 55 | 160.1 | -1.4 | 1.565 | 20 | 211 | 40 | 100 | 96 | 75 | 4.46 | 3.1 | 1.38 | 27 | 35 | 3 | 2 | 0 | 1.1 | 11.8 | 2.2 | 0 | 2 | 6 | 2 | 709 |
1978 | 8 | 5 | 4.1 | 0.615 | 0 | 48 | 140.1 | -0.2 | 1.297 | 9 | 150 | 32 | 67 | 64 | 88 | 3.53 | 3.1 | 1.5 | 24 | 26 | 0 | 2 | 1 | 0.6 | 9.6 | 2.1 | 0 | 5 | 6 | 5 | 586 |