P · 10 seasons · 1969 – 1978 · B/T: R/R
Few careers score higher: Jim Colborn sits 1st of 0 pitchers all-time in roto value, built over 10 seasons. 1973 was the high-water mark, worth +6.7, 15th that season and 3356th of 51,303 player-seasons on record. Career value accumulated in wins (+4.7), WHIP (+2.0) and strikeouts (+1.9), and drained away in ERA (-2.0).
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1969 | CHC | 6 | -2.25 | #623 | #82,951 |
| 1970 | CHC | 34 | -2.50 | #726 | #99,500 |
| 1971 | CHC | 14 | -2.30 | #518 | #87,711 |
| 1972 | ML4 | 39 | -2.90 | #794 | #107,665 |
| 1973 | ML4 | 43 | -2.31 | #459 | #88,875 |
| 1974★ | ML4 | 33 | -2.25 | #476 | #81,812 |
| 1975 | ML4 | 36 | -2.32 | #470 | #89,527 |
| 1976 | ML4 | 32 | -2.33 | #467 | #90,267 |
| 1977 | KC | 37 | -2.33 | #487 | #90,477 |
| 1978 | SEA | 28 | -2.28 | #483 | #85,322 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1969 | CHC | 6 | -2.29 | #240 | #36,002 |
| 1970 | CHC | 34 | -0.75 | #166 | #21,996 |
| 1971 | CHC | 14 | -3.10 | #302 | #46,037 |
| 1972 | ML4 | 39 | 1.05 | #97 | #14,460 |
| 1973★ | ML4 | 43 | 6.71 | #15 | #3,356 |
| 1974 | ML4 | 33 | 0.35 | #114 | #16,966 |
| 1975 | ML4 | 36 | 0.29 | #122 | #17,178 |
| 1976 | ML4 | 32 | 0.98 | #109 | #14,743 |
| 1977 | KC | 36 | 4.19 | #50 | #6,786 |
| 1978 | SEA | 28 | -3.96 | #360 | #49,792 |
★ Best season by Z