Not enough days in 1931 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 |
|---|---|---|---|
| 19310510 | XXXXX | -0.77 | PIT |
| 19310524 | -017- | -1.34 | PIT |
| 19310607 | -033- | -1.28 | PIT |
| 19310621 | -049- | -1.28 | PIT |
| 19310705 | -059- | -1.26 | PIT |
| 19310719 | -067- | -1.28 | PIT |
| 19310802 | -076- | -1.31 | PIT |
| 19310816 | -093- | -1.31 | PIT |
| 19310830 | -108- | -1.31 | PIT |
| 19310913 | XXXXX | -1.33 | PIT |
| 19310927 | XXXXX | -1.34 | PIT |
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