P · 9 seasons · 1984 – 1994 · B/T: R/R
Roger Mason ranks 1st of 0 pitchers by career roto value, one of the highest totals the site records. 1993 was the high-water mark, worth +1.1, 132nd that season and 14246th of 51,303 player-seasons on record. Career value accumulated in WHIP (+1.4) and ERA (+0.1), and drained away in strikeouts (-4.0) and saves (-1.4).
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1984 | DET | 5 | -2.28 | #520 | #85,750 |
| 1985 | SF | 5 | -2.44 | #836 | #96,908 |
| 1986 | SF | 11 | -2.85 | #923 | #107,090 |
| 1987 | SF | 5 | -2.41 | #845 | #95,556 |
| 1989 | HOU | 2 | -2.25 | #520 | #82,600 |
| 1991★ | PIT | 24 | -2.11 | #479 | #65,591 |
| 1992 | PIT | 65 | -2.52 | #930 | #100,399 |
| 1993 | PHI | 68 | -2.25 | #919 | #82,970 |
| 1994 | NYM | 47 | -2.25 | #508 | #82,292 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1984 | DET | 5 | -2.30 | #266 | #36,049 |
| 1985 | SF | 5 | -1.24 | #212 | #24,871 |
| 1986 | SF | 11 | -1.82 | #229 | #29,473 |
| 1987 | SF | 5 | -2.24 | #265 | #35,272 |
| 1989 | HOU | 2 | -2.62 | #359 | #40,919 |
| 1991 | PIT | 24 | 0.14 | #166 | #17,802 |
| 1992 | PIT | 65 | 0.76 | #140 | #15,457 |
| 1993★ | SD | 68 | 1.12 | #132 | #14,246 |
| 1994 | NYM | 47 | 0.34 | #161 | #17,005 |
★ Best season by Z