P · 14 seasons · 1939 – 1956 · B/T: R/R
Walt Masterson is 1st of 0 pitchers in career roto value, a top-tier career by any lens the site offers. His best year was 1947: +9.7 roto value, 12th that season and 1274th of 51,303 player-seasons on record. He banked roto value in strikeouts (+8.2) and saves (+3.6) and gave it back in WHIP (-7.8) and ERA (-2.5).
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1939 | WS1 | 24 | -2.30 | #676 | #87,742 |
| 1940 | WS1 | 31 | -2.25 | #662 | #82,987 |
| 1941 | WS1 | 34 | -2.38 | #717 | #93,593 |
| 1942 | WS1 | 26 | -2.51 | #728 | #99,855 |
| 1945 | WS1 | 4 | -2.24 | #733 | #81,045 |
| 1946 | WS1 | 29 | -2.61 | #916 | #102,856 |
| 1947 | WS1 | 36 | -3.16 | #844 | #109,681 |
| 1948★ | WS1 | 33 | -2.07 | #558 | #61,356 |
| 1949 | BOS | 29 | -2.90 | #506 | #107,576 |
| 1950 | BOS | 33 | -2.54 | #442 | #100,960 |
| 1951 | BOS | 30 | -2.33 | #340 | #90,775 |
| 1952 | WS1 | 29 | -2.81 | #523 | #106,552 |
| 1953 | WS1 | 29 | -2.77 | #497 | #105,967 |
| 1956 | DET | 35 | -2.26 | #312 | #83,405 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1939 | WS1 | 24 | -3.43 | #320 | #48,073 |
| 1940 | WS1 | 31 | -0.74 | #146 | #21,913 |
| 1941 | WS1 | 34 | -2.29 | #238 | #35,894 |
| 1942 | WS1 | 25 | 2.21 | #79 | #10,990 |
| 1945 | WS1 | 4 | -0.59 | #140 | #21,184 |
| 1946 | WS1 | 29 | -3.68 | #387 | #49,093 |
| 1947★ | WS1 | 35 | 9.66 | #12 | #1,274 |
| 1948 | WS1 | 33 | 1.78 | #89 | #12,225 |
| 1949 | BOS | 28 | 1.45 | #60 | #13,185 |
| 1950 | BOS | 33 | -2.08 | #132 | #32,808 |
| 1951 | BOS | 30 | 0.15 | #88 | #17,784 |
| 1952 | WS1 | 29 | 0.42 | #79 | #16,718 |
| 1953 | WS1 | 29 | 3.49 | #33 | #8,113 |
| 1956 | DET | 35 | -2.50 | #174 | #39,131 |
★ Best season by Z