P · 13 seasons · 1969 – 1981 · B/T: L/L
Dave Roberts ranks 1st of 0 pitchers by career roto value, one of the highest totals the site records. No season of his scores higher than 1971, at +8.1, 10th that season and 2195th of 51,303 player-seasons on record. Career value accumulated in wins (+5.0) and strikeouts (+3.5), and drained away in ERA (-2.9).
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1969 | SD | 23 | -2.10 | #451 | #65,343 |
| 1970 | SD | 43 | -2.19 | #456 | #76,666 |
| 1971 | SD | 38 | -2.40 | #630 | #94,937 |
| 1972 | HOU | 35 | -1.25 | #310 | #39,215 |
| 1973 | HOU | 41 | -3.28 | #807 | #110,221 |
| 1974 | HOU | 35 | -1.95 | #384 | #49,892 |
| 1975 | HOU | 32 | -2.87 | #817 | #107,313 |
| 1976 | DET | 36 | -2.33 | #467 | #90,267 |
| 1977 | DET | 39 | -2.70 | #844 | #104,769 |
| 1978★ | CHC | 37 | -1.08 | #316 | #37,757 |
| 1979 | SF | 47 | -2.59 | #807 | #102,413 |
| 1980 | SEA | 39 | -2.29 | #501 | #86,710 |
| 1981 | NYM | 7 | -2.20 | #488 | #77,812 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1969 | SD | 22 | -3.32 | #341 | #47,452 |
| 1970 | SD | 43 | 2.15 | #82 | #11,161 |
| 1971★ | SD | 37 | 8.07 | #10 | #2,195 |
| 1972 | HOU | 35 | -2.38 | #244 | #37,352 |
| 1973 | HOU | 39 | 4.78 | #44 | #5,800 |
| 1974 | HOU | 34 | 0.99 | #96 | #14,696 |
| 1975 | HOU | 32 | 0.65 | #113 | #15,853 |
| 1976 | DET | 36 | 1.13 | #108 | #14,201 |
| 1977 | DET | 39 | -1.17 | #185 | #24,428 |
| 1978 | CHC | 35 | -3.46 | #340 | #48,228 |
| 1979 | SF | 47 | 0.44 | #139 | #16,628 |
| 1980 | SEA | 39 | -1.28 | #202 | #25,135 |
| 1981 | NYM | 7 | -4.29 | #344 | #50,328 |
★ Best season by Z