P · 15 seasons · 1989 – 2006 · B/T: R/R
Few careers score higher: Jason Grimsley sits 1st of 0 pitchers all-time in roto value, built over 15 seasons. 1999 was the high-water mark, worth +1.3, 159th that season and 13561st of 51,303 player-seasons on record.
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1989 | PHI | 4 | -2.41 | #872 | #95,487 |
| 1990 | PHI | 12 | -2.22 | #832 | #79,617 |
| 1991 | PHI | 12 | -2.49 | #971 | #99,293 |
| 1993 | CLE | 10 | -2.18 | #553 | #74,976 |
| 1994 | CLE | 14 | -2.25 | #508 | #82,292 |
| 1995 | CLE | 15 | -2.13 | #547 | #69,853 |
| 1996 | CAL | 35 | -2.12 | #560 | #66,683 |
| 1999 | NYY | 55 | -2.15 | #602 | #71,823 |
| 2000 | NYY | 63 | -2.18 | #906 | #75,435 |
| 2001 | KC | 73 | -2.13 | #621 | #68,561 |
| 2002 | KC | 70 | -2.15 | #594 | #72,185 |
| 2003 | KC | 76 | -2.13 | #599 | #68,222 |
| 2004 | BAL | 73 | -2.12 | #583 | #67,132 |
| 2005★ | BAL | 22 | -2.10 | #572 | #64,808 |
| 2006 | ARI | 19 | -2.20 | #1,054 | #77,298 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1989 | PHI | 4 | -3.15 | #399 | #46,359 |
| 1990 | PHI | 11 | -1.20 | #239 | #24,623 |
| 1991 | PHI | 12 | -2.60 | #365 | #40,669 |
| 1993 | CLE | 10 | -2.34 | #373 | #36,706 |
| 1994 | CLE | 14 | 0.08 | #171 | #18,084 |
| 1995 | CLE | 15 | -3.25 | #504 | #47,099 |
| 1996 | CAL | 35 | -3.97 | #526 | #49,820 |
| 1999★ | NYY | 55 | 1.33 | #159 | #13,561 |
| 2000 | NYY | 63 | -0.62 | #266 | #21,301 |
| 2001 | KC | 73 | 0.97 | #164 | #14,764 |
| 2002 | KC | 70 | 0.12 | #200 | #17,906 |
| 2003 | KC | 76 | -2.22 | #435 | #34,912 |
| 2004 | BAL | 73 | -0.29 | #242 | #19,782 |
| 2005 | BAL | 22 | -2.23 | #428 | #34,979 |
| 2006 | ARI | 19 | -1.79 | #379 | #29,154 |
★ Best season by Z