Not enough days in 1989 season to compile WAA record.
The line graph below shows daily WAA and Batting Average for reference. Fluctuation in batting average decreases as a season progresses. BA for pitchers is batting average against.
| Date | Rank | WAA | TeamID |
|---|---|---|---|
| 19890427 | +022+ | 1.37 | LAN |
| 19890511 | +014+ | 1.96 | LAN |
| 19890525 | +001+ | 3.13 | LAN |
| 19890608 | +026+ | 2.43 | LAN |
| 19890622 | +021+ | 3.00 | LAN |
| 19890706 | +017+ | 3.50 | LAN |
| 19890723 | +009+ | 4.68 | LAN |
| 19890806 | +007+ | 5.05 | LAN |
| 19890820 | +008+ | 5.66 | LAN |
| 19890903 | +004+ | 6.54 | LAN |
| 19890917 | +005+ | 7.02 | LAN |
| 19891001 | +004+ | 7.83 | LAN |
Orel Hershiser Post Season Games
| Rank | WAA | IP | ERA | Gs | Gr | Tm |
|---|---|---|---|---|---|---|
| +022+ | 2.57 | 58 | 1.71 | 7 | 1 | LAN |
| +022+ | 0.1 | 68.7 | 3.54 | 11 | 0 | CLE |
| +022+ | 0.45 | 5.3 | 0 | 0 | 3 | NYN |
| +022+ | 3.12 | 132 | 2.59 | 0 | 0 | TOT |
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