The live racing card at Colonial Downs Thursday will begin at 9 a.m. to avoid forecasted extreme heat later in the day. The 11-race card will begin with three jump races followed by eight races on the flat, with the first flat race slated for approximately 10:25 a.m. The last race will be run at approximately 1:30 p.m.Friday's card is scheduled for its regular 12:30 p.m. first post, as are programs slated for Saturday and Sunday. The summer meet closes Monday with an 11-race card headed by the GIII Old Dominion Derby. Post time Monday is 12 p.m.The post Early Start to Colonial Card Thursday Due to Heat appeared first on TDN | Thoroughbred Daily News | Horse Racing News, Results and Video | Thoroughbred Breeding and Auctions.