Mac’s Convenience Stores will again sponsor Legend Cars of Alberta's Biggest race, the Mac’s "Froster 50" which will take place Saturday June 14th at Auto Clearing Motorspeedway in Saskatoon. This is Legends longest race at 133 Laps, it also has the largest field, biggest purse and attracts the best Legend drivers from Western Canada and the Northwest United States. It is the largest race for Legends in all of Canada.