P · 7 seasons · 1985 – 1993 · B/T: R/L
Jeff Kaiser ranks 1st of 0 pitchers by career roto value, one of the highest totals the site records. His best year was 1988: -2.2 roto value, 284th that season and 34427th of 51,303 player-seasons on record.
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1985 | OAK | 15 | -2.24 | #482 | #81,373 |
| 1987 | CLE | 2 | -2.28 | #490 | #85,085 |
| 1988 | CLE | 3 | -2.22 | #479 | #78,842 |
| 1989 | CLE | 6 | -2.25 | #520 | #82,600 |
| 1990 | CLE | 5 | -2.19 | #504 | #76,022 |
| 1991★ | DET | 10 | -2.14 | #497 | #70,891 |
| 1993 | NYM | 9 | -2.18 | #553 | #74,976 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1985 | OAK | 15 | -4.97 | #412 | #50,949 |
| 1987 | CLE | 2 | -3.02 | #357 | #45,395 |
| 1988★ | CLE | 3 | -2.19 | #284 | #34,427 |
| 1989 | CLE | 6 | -2.67 | #365 | #41,589 |
| 1990 | CLE | 5 | -2.39 | #353 | #37,582 |
| 1991 | DET | 10 | -2.46 | #342 | #38,527 |
| 1993 | NYM | 9 | -2.64 | #405 | #41,136 |
★ Best season by Z