P · 15 seasons · 1923 – 1937 · B/T: L/L
Rube Walberg ranks 1st of 0 pitchers by career roto value, one of the highest totals the site records. The peak came in 1929, +10.3, 8th that season and 1001st of 51,303 player-seasons on record. The value came from strikeouts (+17.2), wins (+14.0) and ERA (+1.7), with no category working against him.
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1923 | PHA | 28 | -2.09 | #434 | #63,283 |
| 1924 | PHA | 6 | -2.37 | #542 | #93,510 |
| 1925 | PHA | 53 | -2.97 | #808 | #108,330 |
| 1926 | PHA | 40 | -2.92 | #801 | #107,865 |
| 1927★ | PHA | 47 | -1.55 | #342 | #42,497 |
| 1928 | PHA | 38 | -1.97 | #388 | #50,663 |
| 1929 | PHA | 40 | -2.14 | #423 | #70,818 |
| 1930 | PHA | 38 | -2.86 | #699 | #107,147 |
| 1931 | PHA | 45 | -3.47 | #713 | #110,866 |
| 1932 | PHA | 41 | -2.68 | #842 | #104,368 |
| 1933 | PHA | 41 | -2.94 | #645 | #108,052 |
| 1934 | BOS | 30 | -2.15 | #468 | #72,581 |
| 1935 | BOS | 44 | -2.65 | #618 | #103,847 |
| 1936 | BOS | 24 | -2.54 | #600 | #100,978 |
| 1937 | BOS | 32 | -2.25 | #694 | #82,596 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1923 | PHA | 28 | -2.53 | #246 | #39,537 |
| 1924 | PHA | 6 | -3.13 | #319 | #46,235 |
| 1925 | PHA | 53 | 7.94 | #17 | #2,299 |
| 1926 | PHA | 40 | 4.32 | #50 | #6,550 |
| 1927 | PHA | 46 | 7.59 | #18 | #2,574 |
| 1928 | PHA | 38 | 7.22 | #23 | #2,880 |
| 1929★ | PHA | 40 | 10.35 | #8 | #1,001 |
| 1930 | PHA | 38 | 3.95 | #48 | #7,216 |
| 1931 | PHA | 44 | 7.22 | #18 | #2,879 |
| 1932 | PHA | 41 | 1.57 | #87 | #12,851 |
| 1933 | PHA | 40 | -0.14 | #100 | #19,079 |
| 1934 | BOS | 30 | 0.27 | #86 | #17,280 |
| 1935 | BOS | 44 | 2.45 | #60 | #10,380 |
| 1936 | BOS | 24 | 0.69 | #83 | #15,713 |
| 1937 | BOS | 32 | -2.12 | #220 | #33,473 |
★ Best season by Z