Parx, which announced last week it was canceling racing Monday and Tuesday due to excessive heat, has now also abandoned its slate of live races Wednesday. Finger Lakes also wound up canceling their Tuesday card after initially trying to race, citing the excessive heat index in the area. With a heat wave gripping much of the country, Delaware Park has also been forced to cancel its Wednesday card. Earlier in the week, Finger Lakes and Prairie Meadows each canceled their live racing cards Monday due to weather.