P · 10 seasons · 1909 – 1918 · B/T: R/R
Few careers score higher: Bob Groom sits 1st of 0 pitchers all-time in roto value, built over 10 seasons. No season of his scores higher than 1912, at +10.1, 7th that season and 1073rd of 51,303 player-seasons on record. Career value accumulated in strikeouts (+15.0) and wins (+9.4), and drained away in ERA (-4.0).
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1909 | WS1 | 46 | -3.63 | #597 | #111,136 |
| 1910 | WS1 | 34 | -3.10 | #636 | #109,260 |
| 1911 | WS1 | 37 | -2.89 | #670 | #107,471 |
| 1912 | WS1 | 43 | -3.16 | #700 | #109,687 |
| 1913★ | WS1 | 37 | -2.51 | #631 | #99,796 |
| 1914 | SLF | 42 | -3.02 | #808 | #108,735 |
| 1915 | SLF | 37 | -2.76 | #746 | #105,856 |
| 1916 | SLA | 41 | -2.82 | #609 | #106,645 |
| 1917 | SLA | 38 | -3.17 | #579 | #109,757 |
| 1918 | CLE | 14 | -2.52 | #538 | #100,218 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1909 | WS1 | 44 | 0.16 | #77 | #17,737 |
| 1910 | WS1 | 34 | 1.71 | #55 | #12,426 |
| 1911 | WS1 | 37 | 3.06 | #39 | #8,939 |
| 1912★ | WS1 | 43 | 10.14 | #7 | #1,073 |
| 1913 | WS1 | 37 | 3.37 | #40 | #8,318 |
| 1914 | SLF | 42 | 2.32 | #68 | #10,703 |
| 1915 | SLF | 37 | 1.58 | #81 | #12,830 |
| 1916 | SLA | 41 | 4.52 | #31 | #6,220 |
| 1917 | SLA | 38 | 1.97 | #51 | #11,682 |
| 1918 | CLE | 14 | -5.61 | #251 | #51,153 |
★ Best season by Z