COLBY, Kan. – The Mel Hambelton Ford Racing POWRi United Rebel Sprint Series is slated to take on a doubleheader weekend June 27 and 28. Lucas Oil POWRi United Rebel Sprint Series drivers will head to Thomas County Speedway in Colby, Kan., on Saturday, June 27. Racing is scheduled to begin at 7 p.m. General admission is $15 with kids 12 and under free. On Sunday, June 28, competitors will head east on I-70 to WaKeeney Speedway complete the doubleheader weekend. With the Sprint Cars will be IMCA Kansas Thunder Racing Series Modifieds, Sports Mods, Stock Cars, and Hobby Stocks. Racing will begin at 6 p.m.. General admission is $15 with kids 12 and under free. Both events pay $700 to win and $200 to start, and were originally scheduled for late-May, but restrictions in effect forced the postponement to a later date.