When horses race in the winter, they do not race on sheets of ice or snowy tracks. Races are cancelled in these cases. The tracks are constantly worked. They are worked after each race. If they would have frozen areas, then the track would cancel, and most of the time if the jockeys feel the track is dangerous, they refuse to ride and races are canceled. Deep snow is not allowed to accumulate on the surface—the horses are not racing through 3 or more inches of snow. Yes, we had trouble with snow balling in the bottom of the hoof—big problem and the best thing we used was PAM or WD-40 depending on how cold it was but nothing was a total solution.