SNAP and PAX

Both SNAP (Statistically Normalized Autocross Performance) and PAX provide adjustment factors to put times from different classes on an qual footing.

SNAP is calculated from the previous seasons actual run-times. Only the fastest drivers at the most competitive events are used in this analysis. SNAP can only be calculated reliably for classes with sufficient participation.

The more traditional PAX Factors are also based on the previous season's run times, but includes a somewhat discretionary factor to take the performance potential of various classes into account.