P · 5 seasons · 1901 – 1907 · B/T: R/L
Mike O'Neill is one of the purest specialists in the database. Of +3.3 career roto value, +1.3 came from ERA alone. The peak came in 1902, +7.1, 15th that season and 2981st of 51,303 player-seasons on record. The value came from ERA (+1.3), strikeouts (+0.4) and wins (+0.2). It leaked back out through WHIP (-0.9).
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1901 | STL | 6 | -2.62 | #220 | #102,978 |
| 1902★ | STL | 51 | 0.16 | #123 | #29,626 |
| 1903 | STL | 41 | -2.13 | #198 | #69,334 |
| 1904 | STL | 30 | -2.09 | #194 | #63,418 |
| 1907 | CIN | 9 | -2.67 | #411 | #104,184 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1901 | STL | 5 | -0.55 | #56 | #20,963 |
| 1902★ | STL | 36 | 7.12 | #15 | #2,981 |
| 1903 | STL | 19 | -3.32 | #139 | #47,467 |
| 1904 | STL | 25 | 0.08 | #54 | #18,083 |
★ Best season by Z