P · 5 seasons · 1966 – 1970 · B/T: R/R
Ron Willis is the extreme version of a specialist. +1.9 of roto value came from saves, yet his career total is only -5.2. No season of his scores higher than 1967, at +1.2, 91st that season and 14025th of 51,303 player-seasons on record. On the credit side, saves (+1.9) and ERA (+0.2). On the debit side, strikeouts (-3.1) and WHIP (-1.5).
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1966 | STL | 4 | -2.19 | #398 | #75,861 |
| 1967★ | STL | 65 | -2.01 | #337 | #52,711 |
| 1968 | STL | 48 | -2.50 | #580 | #99,495 |
| 1969 | STL | 29 | -2.05 | #424 | #57,898 |
| 1970 | SD | 42 | -2.37 | #659 | #93,293 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1966 | STL | 4 | -2.06 | #185 | #32,541 |
| 1967★ | STL | 65 | 1.19 | #91 | #14,025 |
| 1968 | STL | 48 | -0.95 | #138 | #23,077 |
| 1969 | STL | 29 | -2.01 | #216 | #31,739 |
| 1970 | SD | 42 | -1.38 | #190 | #25,763 |
★ Best season by Z