dot_four errors

APX07062019.4
   Track      Date RaceNum DayFlag   WagerType  BetAmt  PayoffAmt  NumCorrect    WinningNumbers  WagerPool  Carryover        race_id
33    AP  20190706       8       D  Pick Three     0.5      32.90           2           3-9-ALL     4852.0        NaN  20190706_AP_8
34    AP  20190706       8       D  Pick Three     0.5      32.90           2           3-ALL-9     4852.0        NaN  20190706_AP_8
35    AP  20190706       8       D  Pick Three     0.5      32.90           2           ALL-9-9     4852.0        NaN  20190706_AP_8