P · 9 seasons · 1919 – 1928 · B/T: ?/R
Few careers score higher: Harold Treadwell sits 1st of 0 pitchers all-time in roto value, built over 9 seasons. His best year was 1928: +1.0 roto value, 95th that season and 14623rd of 51,303 player-seasons on record.
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1919 | NLG | 7 | -1.94 | #293 | #49,732 |
| 1920 | AC | 6 | -2.07 | #468 | #60,460 |
| 1921 | AC | 14 | -1.96 | #368 | #50,185 |
| 1922 | NYB | 19 | -1.71 | #342 | #45,047 |
| 1923 | ACB | 1 | -2.39 | #614 | #94,457 |
| 1924 | CAG | 10 | -2.37 | #539 | #93,091 |
| 1925★ | ABC | 6 | -1.51 | #349 | #42,088 |
| 1926 | DM | 22 | -2.22 | #455 | #79,641 |
| 1928 | CAG | 10 | -2.48 | #642 | #98,811 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1919 | NLG | 4 | -1.47 | #108 | #26,421 |
| 1920 | AC | 6 | -1.31 | #133 | #25,296 |
| 1921 | AC | 13 | -1.34 | #143 | #25,564 |
| 1922 | NYB | 19 | -0.01 | #107 | #18,528 |
| 1923 | ACB | 1 | -2.32 | #223 | #36,362 |
| 1924 | CAG | 7 | -3.35 | #333 | #47,639 |
| 1925 | ABC | 6 | -3.29 | #313 | #47,303 |
| 1926 | DM | 18 | -1.75 | #178 | #28,744 |
| 1928★ | CAG | 10 | 1.01 | #95 | #14,623 |
★ Best season by Z