P · 12 seasons · 1905 – 1920 · B/T: L/L
Lefty Leifield put together 12 seasons from 1905 to 1920 and ranks 833rd of 11,481 pitchers all-time in roto value (10.3 wins and 51.3 strikeouts per season). The peak came in 1911, +7.6, 17th that season and 2526th of 51,303 player-seasons on record. The value came from wins (+7.9), ERA (+5.9) and WHIP (+2.1), with no category working against him.
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1905 | PIT | 8 | -2.23 | #221 | #79,952 |
| 1906 | PIT | 37 | -3.09 | #490 | #109,216 |
| 1907 | PIT | 40 | -3.19 | #466 | #109,839 |
| 1908 | PIT | 34 | -2.06 | #262 | #59,418 |
| 1909 | PIT | 32 | -2.10 | #319 | #65,250 |
| 1910 | PIT | 40 | -2.23 | #408 | #80,345 |
| 1911★ | PIT | 43 | -1.88 | #337 | #48,063 |
| 1912 | CHC | 19 | -2.45 | #656 | #97,385 |
| 1913 | CHC | 7 | -2.31 | #590 | #88,457 |
| 1918 | SLA | 15 | -2.74 | #582 | #105,522 |
| 1919 | SLA | 19 | -2.87 | #582 | #107,334 |
| 1920 | SLA | 4 | -2.17 | #581 | #74,312 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1905 | PIT | 8 | -1.58 | #83 | #27,227 |
| 1906 | PIT | 37 | 6.31 | #16 | #3,797 |
| 1907 | PIT | 40 | 2.69 | #37 | #9,791 |
| 1908 | PIT | 34 | 3.77 | #27 | #7,562 |
| 1909 | PIT | 32 | 2.59 | #45 | #10,020 |
| 1910 | PIT | 40 | 3.96 | #30 | #7,195 |
| 1911★ | PIT | 42 | 7.64 | #17 | #2,526 |
| 1912 | CHC | 19 | 0.25 | #76 | #17,366 |
| 1913 | CHC | 6 | -2.69 | #232 | #41,924 |
| 1918 | SLA | 15 | -0.62 | #100 | #21,330 |
| 1919 | SLA | 19 | -0.78 | #89 | #22,175 |
| 1920 | SLA | 4 | -2.79 | #256 | #43,168 |
★ Best season by Z