Not enough days in 1998 season to compile WAA record.
| Date | Rank | WAA | TeamID |
|---|---|---|---|
| 19980409 | XXXXX | -0.04 | BOS |
| 19980423 | XXXXX | -0.05 | BOS |
| 19980507 | XXXXX | -0.41 | BOS |
| 19980521 | XXXXX | 0.30 | BOS |
| 19980604 | XXXXX | 0.23 | BOS |
| 19980618 | XXXXX | 0.57 | BOS |
| 19980703 | XXXXX | 1.16 | BOS |
| 19980720 | XXXXX | 1.17 | BOS |
| 19980803 | +182+ | 1.55 | BOS |
| 19980817 | +171+ | 1.80 | BOS |
| 19980831 | +132+ | 2.41 | BOS |
| 19980914 | +166+ | 2.08 | BOS |
| 19980928 | +145+ | 2.48 | BOS |
John Valentin Post Season Games
| Rank | WAA | BA | OBP | PA | Rbis | Runs | Tm |
|---|---|---|---|---|---|---|---|
| +096+ | 1.8 | 0.347 | 0.407 | 81 | 19 | 15 | BOS |
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