Autocross, The numbers are are points that are accumulated for the season in the D Stock class of Solo 2 Autocross for my local area. Goto the following web page for a discrption of Solo 2, that should answer your questions!

If you have not tried Autocross......YOU SHOULD!

Goto:
www.scca.com/Solo/Solo2.asp?IdS=00429E-32AA610&x=050|030&~=