P · 14 seasons · 1967 – 1981 · B/T: L/L
Few careers score higher: Ken Brett sits 1st of 0 pitchers all-time in roto value, built over 14 seasons. No season of his scores higher than 1974, at +2.7, 68th that season and 9681st of 51,303 player-seasons on record. Career value accumulated in wins (+0.7), and drained away in ERA (-3.4), WHIP (-0.6) and strikeouts (-0.5).
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1967 | BOS | 1 | -2.21 | #412 | #78,158 |
| 1969 | BOS | 8 | -1.83 | #373 | #47,120 |
| 1970 | BOS | 41 | -1.32 | #307 | #39,965 |
| 1971 | BOS | 29 | -2.35 | #595 | #92,083 |
| 1972 | ML4 | 31 | -2.01 | #403 | #52,688 |
| 1973 | PHI | 37 | -1.00 | #290 | #36,958 |
| 1974★ | PIT | 43 | -0.26 | #254 | #31,977 |
| 1975 | PIT | 26 | -1.97 | #371 | #50,646 |
| 1976 | CWS | 35 | -2.56 | #757 | #101,613 |
| 1977 | CAL | 35 | -2.33 | #487 | #90,477 |
| 1978 | CAL | 31 | -2.28 | #483 | #85,322 |
| 1979 | LAD | 39 | -2.21 | #438 | #78,580 |
| 1980 | KC | 8 | -2.29 | #501 | #86,710 |
| 1981 | KC | 22 | -2.26 | #504 | #83,137 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1967 | BOS | 1 | -2.53 | #231 | #39,586 |
| 1969 | BOS | 8 | -2.79 | #305 | #43,095 |
| 1970 | BOS | 41 | 1.35 | #107 | #13,519 |
| 1971 | BOS | 29 | -3.01 | #299 | #45,294 |
| 1972 | ML4 | 26 | -1.72 | #197 | #28,498 |
| 1973 | PHI | 31 | 2.38 | #82 | #10,556 |
| 1974★ | PIT | 27 | 2.73 | #68 | #9,681 |
| 1975 | PIT | 23 | 0.65 | #112 | #15,832 |
| 1976 | CWS | 29 | 2.72 | #72 | #9,716 |
| 1977 | CAL | 34 | 0.15 | #140 | #17,777 |
| 1978 | CAL | 31 | -2.54 | #267 | #39,663 |
| 1979 | LAD | 39 | -1.14 | #197 | #24,222 |
| 1980 | KC | 8 | -1.63 | #219 | #27,686 |
| 1981 | KC | 22 | -2.37 | #259 | #37,170 |
★ Best season by Z