I'm surprised nobody has posted this yet...or did IHRA just post it and I'm the only one up???
"In 2009, each Nitro Jam national event (and select other events) will become individual tournaments, with the winner of each tournament getting a spot in a select field of racers that will race each other for the world championship at the end of the season. This race, during the World Finals at Rockingham, will crown a national championship as well as the national top 10 in each class. "
Read the full "Open Letter" here:
http://www.ihra.com/article/3597.html