Question On ARA Classifications

[HalfCZ]

I am new to ARA events and do not find explanations on their site that
I do not understand. Americanrimfire.com shows National rankings for something
called "A-Line" and also "Aggregate"
Who can explain what these categories are all about?

Thanks!

 

[mudduck]

Here’s the rules that explains it all

https://www.americanrimfire.com/media/rules/ARA_Rule_Book_2026.pdf

 

[HalfCZ]

not really