Quote:
2005 PAX/RTP Index
"Racers Theoretical Performance"
This Index was developed by Rick Ruth and reflects study of results from over 200 nationwide Solo II events including, the Tire Rack® Solo II National Championships, National Tour, Chicago Region, Houston Region, Milwaukee Region, New England Region, Northern New Jersey Region, Philadelphia Region, Southeast Divisional Series, San Francisco Region, San Diego Region, South Jersey Region, Subaru CenDiv Series, Tri-State Sports Car Council, Texas Region, Wisconsin Autocrossers Inc., and several others.
Truth is, the PAX index has no official ties to the SCCA, although it has become widely accepted by SCCA Solo II programs across the country.