Solo PAX Index

At NWOR, we use the PAX/RTP (Racers Theoretical Performance) Index to determine the winners in our Novice and PAX classes. This Index was developed by Rick Ruth and reflects study of results from over 200 nationwide Solo events including, the Tire Rack® Solo National Championships, National Tour, and many Divisional and Regional events across the country. Basically, the index is a multiplier, designed to compensate for the differences in car performance, thereby shifting the emphasis to driver ability. In plain English, (for example), it allows someone driving a Geo Metro in HS to compete fairly with someone driving a Dodge Viper in SS.

For more information, click here: http://solotime.info/pax

SS  0.833     XP 0.884 AM 1.000
AS 0.823     BP 0.867 BM 0.980
BS 0.818 SSP 0.865 CP 0.858 CM 0.896
CS 0.811 CSP 0.860 DP 0.865 DM 0.898
DS 0.808 DSP 0.844 EP 0.856 EM 0.911
ES 0.792 ESP 0.840 FP 0.877 FM 0.908
FS 0.813 FSP 0.824 HCR 0.815 FSAE 0.981
GS 0.794            
HS 0.786 SSR 0.846 SMF 0.847 T-SMF 0.826
HCS 0.793     SM 0.868 T-SM 0.846
    CAM-T 0.819 SSM 0.879 T-SSM 0.857
SSC 0.807 CAM-C 0.827        
    CAM-S 0.845     KM 0.933
STH 0.812            
STS 0.814 XA 0.842        
STX 0.817 XB 0.848        
STR 0.831 XS 0.851        
STU 0.830 EV 0.832        
SST 0.837            

 

AM A Modified   AML A Modified Ladies            
AS A Street   ASL A Street Ladies   GSL G Street Ladies      
BM B Modified         HCR Heritage Classic Race      
BP B Prepared         HCS H Classic Street      
BS B Street   BML B Modified Ladies   HSL H Street Ladies   CSPL C Street Prepared Ladies
CM C Modified   BPL B Prepared Ladies   KML Kart Mod F125 Ladies      
CP C Prepared   BSL B Street Ladies         DSPL D Street Prepared Ladies
CS C Street         SMF Street Modified FWD      
DM D Modified         SML Street Modified Ladies   ESPL E Street Prepared Ladies
DP D Prepared   CAM Classic American Muscle   SSL Super Street Ladies      
DS D Street   CML C Modified Ladies   SSM Super Street Modified   FSAE Formula SAE
EM E Modified   CPL C Prepared Ladies   SSP Super Street Prepared   FSPL F Street Prepared Ladies
EP E Prepared   CSL C Street Ladies   SSR Super Stock Race Tire   PROR  PAX Index Race Tire
ES E Street   CSP C Street Prepared         PROS  PAX Index Street Tire
FM F Modified         STH Street Touring Hot Hatch      
FP F Prepared   DML D Modified Ladies         SMFL Street Modified FWD Ladies
FS F Street   DPL D Prepared Ladies   STR Street Touring Rwd   SSML Super Street Modified Ladies
GS G Street   DSL D Street Ladies   STS Street Touring Sport   SSPL Super Street Prepared Ladies
HS H Street   DSP D Street Prepared   STU Street Touring Ultra   SSRL Super Stock Race Tire Ladies
            STX Street Touring Xtreme      
JA Formula Junior A   EML E Modified Ladies   XPL X Prepared Ladies   STHL Street Touring Hot Hatch Ladies
JB Formula Junior B   EPL E Prepared Ladies         STRL Street Touring Rwd Ladies
JC Formula Junior C   ESL E Street Ladies   SSC Solo Spec Coupe   STSL Street Touring Sport Ladies
KM Kart Mod F125   ESP E Street Prepared   SSCL Solo Spec Coupe Ladies   STUL Street Touring Ultra Ladies
LI Ladies Index               STXL Street Touring Xtreme Ladies
SM Street Modified   FML F Modified Ladies    TSM Street Mod Street Tire Index   FSAEL Formula SAE Ladies
SS Super Street   FPL F Prepared Ladies            
XP  X Prepared   FSL F Street Ladies    XA Extreme Street A      
      FSP F Street Prepared    XB Extreme Street B