Regular-season careers from the StatVault encyclopedia — the same tables as each player's profile.
| Joba Chamberlain | Stat | Fernando Arroyo |
|---|---|---|
| 10 | Seasons | 8 |
| 8.6 | Career VAL | 8.0 |
| 4.8 (2008) | Peak-season VAL | 4.8 (1977) |
VAL is Value Above League — regular-season production measured against the league at the same position group (MLB VAL board).
| Joba Chamberlain | Stat | Fernando Arroyo |
|---|---|---|
| Career | ||
| 385 | Games | 121 |
| Pitching | ||
| 25 | Wins | 24 |
| 21 | Losses | 37 |
| 7 | Saves | 0 |
| 555.1 | Innings pitched | 535.2 |
| 546 | Strikeouts (pitching) | 172 |
| 3.81 | ||
| ERA |
|---|
| 4.42 |
| 1.38 | WHIP | 1.40 |
|---|
| 111 | ERA+ | 88 |
|---|
| Age | Joba Chamberlain | Fernando Arroyo |
|---|---|---|
| 22 | 4.8 | — |
| 23 | 0.8 | 0.3 |
| 24 | 1.6 | — |
| 25 | — | 4.8 |
| 27 | 0 | — |
| 28 | 1.4 | 1.2 |
| 29 | — | 1.7 |
| 30 | — | 0 |