Not enough days in 1991 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 |
|---|---|---|---|
| 19910502 | XXXXX | -0.46 | BAL |
| 19910516 | XXXXX | -0.63 | BAL |
| 19910530 | XXXXX | -0.10 | BAL |
| 19910613 | XXXXX | -0.50 | BAL |
| 19910627 | -019- | -2.50 | BAL |
| 19910714 | -024- | -2.58 | BAL |
| 19910728 | -016- | -3.18 | BAL |
| 19910811 | -008- | -3.92 | BAL |
| 19910825 | -009- | -3.89 | BAL |
| 19910908 | -016- | -3.83 | BAL |
| 19910922 | -016- | -4.08 | BAL |
| 19911006 | -011- | -4.94 | BAL |
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