Welcome to the Sierra Sports Car Club
The most fun you can have in Sierra Vista without going to jail
SCCC salutes our troops overseas and at home
PAX- How does it all work?

PAX/RTP is a method of grading on a curve. Cars are assigned handicaps based on their make/model/year and level of modification. These handicaps are based on actual performance of cars that have run in events, and are determined by the national PAX administrator, currently Rick Ruth. They are used to judge performances at the national level, and are accepted by all competition entrants.

The most modified car is "A Modified", which gets a score of 1.00, so it's time would not be adjusted at all. Everything else gets multiplied by a figure that you could call a PAX handicap. Here's an example:

Car                      Class                  Raw time              PAX handicap           PAX time        Place
'03 Corvette            SS                        50.00                      .856                      42.80                 2
'04  Focus                 HS                       53.25                      .802                      42.70                 1
'04 Dodge SRT4     STU                      52.45                      .836                     43.84                 3

So a Focus that finished three seconds slower than the Vette actually won.
 
You will notice that the Street Tire classes (STS, STX, STU) are less handicapped than the Street Prepared classes (SP), so if you want to build a tuner car and not spring for R Compound tires, be mindful of what mods will kick you out of the Street Tire classes.  R Compound tires will typically make a car 2-3 seconds faster, but cost in excess of $800 plus a set of wheels!
 
2009 PAX/RTP Index
SS 0.856   ASP 0.866   XP 0.882   AM 1.000
AS 0.843   BSP 0.859   BP 0.868   BM 0.944
BS 0.835   CSP 0.862   CP 0.864   CM 0.907
CS 0.837   DSP 0.845   DP 0.865   DM 0.900
DS 0.819   ESP 0.846   EP 0.861   EM 0.894
ES 0.823   FSP 0.831   FP 0.872   FM 0.903
FS 0.833         GP 0.841   FSAE 0.954
GS 0.821   ST(STS) 0.818            
HS 0.802   STS (STS2) 0.820         F125 0.957
      STX 0.822         FJA 0.860
      STU 0.836         FJB 0.832
      SM 0.867         FJC 0.778
      SSM(SM2) 0.876            
Rick Ruth PAX/RTP Administrator
News
Results
Club Info
Classifieds
Home
Online Registration
Gallery
Helpful Links
Getting Started
PAX/RTP Table
Maps
Glossary of AutoX Terms
Car Classes