The NMA Ponca City Grand National Championship will be set up via regions. Each region will hold qualifiers during May and June. Each region will have 4 races events or as an option up to 6 events. The Grand National Championships will be held in Ponca City, Oklahoma July 22-July 28, 2007More to see at RoadandDirt.com amateur, bike, city, crash, crashes, dirt, motocross, mx, ponca, racing