Good idea! If my formulas are correct this is what it looks like so far.

We could break this down this even farther by comparing only local shows and higher paying events like USAC, MSCS, & KISS but that's for another day.

Rank	Track	# of Races	Avg Car Count	Rating
1	Twin Cities Raceway Park	1	33	3.61
2	Kokomo Speedway	2	30	3.50
3	Terre Haute Action Track	1	32	3.29
4	Gas City I-69 Speedway	4	31	3.26
5	Tri-State Speedway	1	29	3.06
6	Bloomington Speedway	3	28	2.68
7	Lincoln Park Speedway	5	27	2.57
8	Lawrenceburg Speedway	5	24	2.51
9	Paragon Speedway	4	21	1.71
10	Plymouth Speedway	1	10	1.63