Actually both Rally America and NASA Rally Sport do that. NRS splits the country into two sides. Rally America, in addition to the national championship where Travis Pastrana, Ken Block etc. compete, also has a Regional Rally Championship. RA divides the country into Northwest, Southwest, Central and Eastern. The SCCA as a comparison is divided into 8 regions. The 100 Acre Wood rally which is run very close to the actual center of the US has been the Regional Rally Championship event where the top 3 in each class from each region are invited. I'm proud to say that slow old me finished 2nd in the Central Division in Group 5 this year. Mark Utecht in his Mustang finished 1st. That is also where we finished in the regional rally championship. But we both admit that is because we were the only Group 5 regional entries. No one else made the tow. Maybe the roar of our mighty V8 engines scared them off.