HotShoeFactor | SNAP and PAX Autocross Adjustment Factors for SCCA National

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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.

Adjustmentfactors for

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Only valid SNAP

Only valid PAX

	Class	SNAP	PAX	PAX vs. SNAP	Drivers	Courses	Valid
History	125	1.132	0.959	0.61 %	24	19	2010
History	125L		0.959				2010
History	AM	1.125	1.000	-4.83 %	13	14	2010
History	AML		1.000				2010
History	AS	1.023	0.854	2.02 %	56	22	2010
History	ASL	0.963	0.854	-3.90 %	10	12	2010
History	ASP	1.044	0.871	2.12 %	27	20	2010
History	ASPL		0.871				2010
History	BM	1.149	0.965	1.60 %	13	15	2010
History	BML		0.965				2010
History	BP		0.875				2010
History	BPL		0.875				2010
History	BS	1.010	0.847	1.55 %	29	18	2010
History	BSL		0.847				2010
History	BSP	1.035	0.865	1.93 %	17	16	2010
History	BSPL		0.865				2010
History	CM	1.106	0.915	3.14 %	19	18	2010
History	CML		0.915				2010
History	CP	1.025	0.866	0.83 %	23	18	2010
History	CPL	0.981	0.866	-3.51 %	8	8	2010
History	CS	1.003	0.840	1.67 %	34	22	2010
History	CSL	0.960	0.840	-2.57 %	10	14	2010
History	CSP	1.026	0.863	1.27 %	48	22	2010
History	CSPL	0.995	0.863	-1.78 %	8	11	2010
History	DM	1.062	0.913	-0.97 %	17	20	2010
History	DML		0.913				2010
History	DP	1.021	0.866	0.43 %	13	10	2010
History	DPL		0.866				2010
History	DS	0.979	0.825	1.04 %	31	22	2010
History	DSL		0.825				2010
History	DSP	1.013	0.849	1.61 %	32	19	2010
History	DSPL		0.849				2010
History	EM	1.044	0.907	-2.05 %	22	17	2010
History	EML		0.907				2010
History	EP	1.036	0.873	1.10 %	17	16	2010
History	EPL		0.873				2010
History	ES	0.982	0.829	0.87 %	40	22	2010
History	ESL	0.967	0.829	-0.61 %	6	6	2010
History	ESP	1.017	0.852	1.66 %	29	20	2010
History	ESPL		0.852				2010
History	FJA	1.011	0.869	-0.90 %	16	17	2010
History	FJB	0.906	0.834	-7.21 %	10	14	2010
History	FJC		0.772				2010
History	FM	1.079	0.908	1.29 %	23	19	2010
History	FML		0.908				2010
History	FP	1.027	0.876	-0.13 %	18	13	2010
History	FPL		0.876				2010
History	FS	0.980	0.837	-0.25 %	24	22	2010
History	FSAE		0.960				2010
History	FSAEL		0.960				2010
History	FSL	0.951	0.837	-3.11 %	7	9	2010
History	FSP	1.003	0.838	1.90 %	23	14	2010
History	FSPL		0.838				2010
History	GP	1.003	0.850	0.51 %	13	12	2010
History	GPL		0.850				2010
History	GS	0.971	0.812	1.75 %	18	20	2010
History	GSL		0.812				2010
History	HS	0.952	0.803	0.92 %	31	20	2010
History	HSL		0.803				2010
History	SM	1.016	0.877	-1.33 %	35	20	2010
History	SMF	0.972	0.870	-4.86 %	8	10	2010
History	SMFL		0.870				2010
History	SML		0.877				2010
History	SS	1.023	0.860	1.33 %	56	22	2010
History	SSL	0.972	0.860	-3.71 %	15	15	2010
History	SSM	1.035	0.883	-0.15 %	21	18	2010
History	SSML		0.883				2010
History	ST	0.978	0.824	1.06 %	48	20	2010
History	STL	0.925	0.824	-4.17 %	12	13	2010
History	STR		0.842				2010
History	STS	0.976	0.826	0.63 %	44	20	2010
History	STSL	0.921	0.826	-4.80 %	9	11	2010
History	STU	0.985	0.844	-0.57 %	60	22	2010
History	STUL	0.952	0.844	-3.83 %	6	7	2010
History	STX	0.968	0.830	-0.63 %	47	21	2010
History	STXL		0.830				2010
History	X1	0.935			8	6	2010
History	XP	1.043	0.890	-0.18 %	30	18	2010
History	XPL		0.890				2010

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