Mike Henneman
P · 10 seasons · 1987 – 1996 · B/T: R/R
Mike Henneman is one of the purest specialists in the database. Of +36.4 career roto value, +25.3 came from saves alone. The peak came in 1988, +7.0, 30th that season and 3124th of 51,303 player-seasons on record. The value came from saves (+25.3), ERA (+6.3) and WHIP (+2.2), with no category working against him.
Hitting
Best Season
-2.12
1996 · #66,683 all-time
Career Z
-22.0
summed
Avg / Season
-2.20
longevity-neutral
Seasons
10
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1987 | DET | 55 | -2.31 | #735 | #88,426 |
| 1988 | DET | 65 | -2.22 | #479 | #78,842 |
| 1989 | DET | 60 | -2.25 | #520 | #82,600 |
| 1990 | DET | 69 | -2.19 | #504 | #76,022 |
| 1991 | DET | 60 | -2.14 | #497 | #70,891 |
| 1992 | DET | 60 | -2.19 | #525 | #76,385 |
| 1993 | DET | 63 | -2.18 | #553 | #74,976 |
| 1994 | DET | 30 | -2.25 | #508 | #82,292 |
| 1995 | DET | 50 | -2.13 | #547 | #69,853 |
| 1996★ | TEX | 49 | -2.12 | #560 | #66,683 |
★ Best season by Z
Pitching
Best Season
6.98
1988 · #3,124 all-time
Career Z
36.4
summed
Avg / Season
3.64
longevity-neutral
Seasons
10
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1987 | DET | 55 | 4.68 | #46 | #5,967 |
| 1988★ | DET | 65 | 6.98 | #30 | #3,124 |
| 1989 | DET | 60 | 1.54 | #126 | #12,937 |
| 1990 | DET | 69 | 4.76 | #53 | #5,840 |
| 1991 | DET | 60 | 4.86 | #56 | #5,659 |
| 1992 | DET | 60 | 2.73 | #83 | #9,688 |
| 1993 | DET | 63 | 4.07 | #70 | #6,993 |
| 1994 | DET | 30 | -0.61 | #210 | #21,279 |
| 1995 | DET | 50 | 4.89 | #61 | #5,624 |
| 1996 | TEX | 49 | 2.49 | #100 | #10,261 |
★ Best season by Z