P · 8 seasons · 1937 – 1946 · B/T: R/R
Few careers score higher: Willie Jefferson sits 1st of 0 pitchers all-time in roto value, built over 8 seasons. The peak came in 1942, +1.4, 91st that season and 13492nd of 51,303 player-seasons on record. The value came from WHIP (+1.6). It leaked back out through wins (-2.3), strikeouts (-0.9) and ERA (-0.4).
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1937 | CT | 11 | -2.12 | #592 | #67,941 |
| 1938★ | MRS | 17 | -1.10 | #292 | #37,898 |
| 1939 | MRS | 6 | -2.00 | #449 | #52,065 |
| 1942 | CCB | 15 | -1.61 | #332 | #43,336 |
| 1943 | CBE | 10 | -1.97 | #454 | #50,412 |
| 1944 | CBE | 11 | -1.63 | #364 | #43,692 |
| 1945 | CBE | 6 | -2.11 | #627 | #66,494 |
| 1946 | CBE | 1 | -2.00 | #574 | #51,895 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1937 | CT | 8 | -1.52 | #165 | #26,805 |
| 1938 | MRS | 13 | 0.99 | #99 | #14,710 |
| 1939 | MRS | 5 | -0.53 | #134 | #20,897 |
| 1942★ | CCB | 15 | 1.36 | #91 | #13,492 |
| 1943 | CBE | 9 | -1.80 | #169 | #29,277 |
| 1944 | CBE | 10 | -0.94 | #142 | #23,054 |
| 1945 | CBE | 5 | 0.25 | #118 | #17,357 |
| 1946 | CBE | 1 | -2.74 | #339 | #42,515 |
★ Best season by Z