P · 14 seasons · 1969 – 1982 · B/T: R/R
One category carried Tom Griffin and the rest pulled him back: +5.3 from strikeouts, against a career total of -13.8. No season of his scores higher than 1969, at +2.9, 70th that season and 9388th of 51,303 player-seasons on record. Career value accumulated in strikeouts (+5.3), and drained away in WHIP (-8.6), ERA (-5.5) and saves (-5.2).
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1969 | HOU | 31 | -2.08 | #439 | #61,941 |
| 1970 | HOU | 23 | -2.84 | #810 | #106,892 |
| 1971 | HOU | 10 | -2.43 | #660 | #96,662 |
| 1972 | HOU | 39 | -1.75 | #361 | #45,524 |
| 1973 | HOU | 25 | -2.59 | #746 | #102,329 |
| 1974★ | HOU | 37 | -0.87 | #287 | #35,981 |
| 1975 | HOU | 17 | -2.55 | #767 | #101,125 |
| 1976 | HOU | 32 | -2.92 | #803 | #107,856 |
| 1977 | SD | 39 | -2.54 | #802 | #100,993 |
| 1978 | CAL | 24 | -2.28 | #483 | #85,322 |
| 1979 | SF | 59 | -2.60 | #813 | #102,606 |
| 1980 | SF | 44 | -2.40 | #791 | #94,907 |
| 1981 | SF | 22 | -2.07 | #443 | #59,890 |
| 1982 | PIT | 6 | -2.21 | #485 | #78,209 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1969★ | HOU | 31 | 2.86 | #70 | #9,388 |
| 1970 | HOU | 23 | -4.81 | #360 | #50,861 |
| 1971 | HOU | 10 | -3.11 | #304 | #46,052 |
| 1972 | HOU | 39 | -0.04 | #131 | #18,652 |
| 1973 | HOU | 25 | -0.77 | #140 | #22,072 |
| 1974 | HOU | 34 | 1.75 | #80 | #12,324 |
| 1975 | HOU | 17 | -3.38 | #316 | #47,813 |
| 1976 | SD | 31 | -1.89 | #193 | #30,262 |
| 1977 | SD | 38 | -1.74 | #202 | #28,686 |
| 1978 | CAL | 24 | -2.40 | #248 | #37,686 |
| 1979 | SF | 59 | 0.69 | #131 | #15,724 |
| 1980 | SF | 42 | 2.02 | #102 | #11,525 |
| 1981 | SF | 22 | 1.34 | #101 | #13,556 |
| 1982 | PIT | 6 | -4.34 | #365 | #50,386 |
★ Best season by Z