P · 6 seasons · 1925 – 1931 · B/T: R/R
Few careers score higher: Bob Osborn sits 1st of 0 pitchers all-time in roto value, built over 6 seasons. The peak came in 1930, +0.4, 106th that season and 16763rd of 51,303 player-seasons on record.
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1925 | CHC | 1 | -2.51 | #570 | #100,083 |
| 1926 | CHC | 31 | -2.84 | #783 | #106,919 |
| 1927 | CHC | 24 | -2.52 | #705 | #100,379 |
| 1929 | CHC | 3 | -2.38 | #548 | #94,111 |
| 1930 | CHC | 35 | -3.09 | #721 | #109,245 |
| 1931★ | PIT | 27 | -2.36 | #616 | #92,528 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1925 | CHC | 1 | -2.43 | #241 | #38,169 |
| 1926 | CHC | 31 | 0.24 | #113 | #17,387 |
| 1927 | CHC | 24 | -1.03 | #137 | #23,554 |
| 1929 | CHC | 3 | -2.10 | #192 | #33,077 |
| 1930★ | CHC | 35 | 0.41 | #106 | #16,763 |
| 1931 | PIT | 27 | -2.15 | #177 | #33,826 |
★ Best season by Z