P · 6 seasons · 1917 – 1925 · B/T: L/L
One category carried Hank Thormahlen and the rest pulled him back: +0.0 from ERA, against a career total of -3.2. His best year was 1919: +4.5 roto value, 33rd that season and 6322nd of 51,303 player-seasons on record. He banked roto value in ERA (+0.0) and gave it back in strikeouts (-1.3), WHIP (-0.6) and wins (-0.3).
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1917 | NYY | 1 | -2.47 | #457 | #98,459 |
| 1918 | NYY | 16 | -2.93 | #602 | #107,900 |
| 1919 | NYY | 30 | -2.38 | #461 | #94,086 |
| 1920★ | NYY | 29 | -1.88 | #377 | #48,100 |
| 1921 | BOS | 23 | -2.40 | #598 | #95,019 |
| 1925 | BRO | 5 | -2.49 | #551 | #99,102 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1917 | NYY | 1 | -2.53 | #158 | #39,563 |
| 1918 | NYY | 16 | 0.56 | #81 | #16,210 |
| 1919★ | NYY | 30 | 4.45 | #33 | #6,322 |
| 1920 | NYY | 29 | -1.27 | #132 | #25,032 |
| 1921 | BOS | 23 | -2.01 | #177 | #31,795 |
| 1925 | BRO | 5 | -2.39 | #237 | #37,533 |
★ Best season by Z