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 | +012+ | 1.58 | HOU |
| 19910516 | +016+ | 1.91 | HOU |
| 19910530 | +022+ | 2.10 | HOU |
| 19910613 | +010+ | 3.15 | HOU |
| 19910627 | +005+ | 4.38 | HOU |
| 19910714 | +010+ | 4.63 | HOU |
| 19910728 | +011+ | 4.93 | HOU |
| 19910811 | +008+ | 5.57 | HOU |
| 19910825 | +010+ | 5.83 | HOU |
| 19910908 | +012+ | 6.41 | HOU |
| 19910922 | +014+ | 6.00 | HOU |
| 19911006 | +019+ | 6.08 | HOU |
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