Getting patrons from a widget to an extraction

Hello all,

I've been asked to create an extraction which includes first time ticket buyers from last season.

I know I can filter by "First Performance Date" in a dashboard widget, but can't find a way to get those folks into an extraction. I don't see "First perf date" as an extraction or list criteria, and had even considered trying to save the widget contents to a list and then using the list in my extraction, but I don't think I can do that without the extra step of exporting to a .CSV and then importing to a list. 

Have I missed a more obvious way to get there?

Thanks for being smart, friends!

Lesley Chaney