Jack Aker
P · 11 seasons · 1964 – 1974 · B/T: R/R
Jack Aker was worth +21.3 in saves alone, more than his entire career total of +16.0 once everything else is counted against him. The peak came in 1966, +10.6, 6th that season and 925th of 51,303 player-seasons on record. The value came from saves (+21.3), ERA (+1.4) and WHIP (+0.3). It leaked back out through strikeouts (-4.7).
Hitting
Best Season
-2.18
1974 · #75,430 all-time
Career Z
-26.0
summed
Avg / Season
-2.37
longevity-neutral
Seasons
11
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1964 | KC1 | 10 | -2.28 | #490 | #86,382 |
| 1965 | KC1 | 34 | -2.42 | #586 | #95,987 |
| 1966 | KC1 | 66 | -2.45 | #616 | #97,516 |
| 1967 | KC1 | 57 | -2.26 | #509 | #84,145 |
| 1968 | OAK | 54 | -2.29 | #448 | #86,500 |
| 1969 | NYY | 53 | -2.33 | #681 | #90,928 |
| 1970 | NYY | 41 | -2.52 | #737 | #100,380 |
| 1971 | NYY | 41 | -2.38 | #621 | #93,808 |
| 1972 | CHC | 52 | -2.39 | #664 | #94,532 |
| 1973 | CHC | 47 | -2.52 | #731 | #100,413 |
| 1974★ | NYM | 41 | -2.18 | #440 | #75,430 |
★ Best season by Z
Pitching
Best Season
10.56
1966 · #925 all-time
Career Z
16.0
summed
Avg / Season
1.46
longevity-neutral
Seasons
11
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1964 | KC1 | 9 | -3.44 | #285 | #48,112 |
| 1965 | KC1 | 34 | -0.46 | #115 | #20,571 |
| 1966★ | KC1 | 66 | 10.56 | #6 | #925 |
| 1967 | KC1 | 57 | 0.41 | #112 | #16,730 |
| 1968 | OAK | 54 | -0.01 | #115 | #18,526 |
| 1969 | NYY | 53 | 3.00 | #64 | #9,074 |
| 1970 | NYY | 41 | 4.02 | #53 | #7,083 |
| 1971 | NYY | 41 | -0.09 | #126 | #18,828 |
| 1972 | CHC | 52 | 2.69 | #63 | #9,798 |
| 1973 | CHC | 47 | 0.11 | #122 | #17,952 |
| 1974 | NYM | 41 | -0.77 | #148 | #22,063 |
★ Best season by Z