Google Analytics domain data without filtering
I run a web service with many sub-sites. Example URLs of sub sites:
domain.com/sub/jim domain.com/sub/jon domain.com/sub/dave
etc (around 3,000 currently and growing).
We currently offer basic stats reporting (page views and unique pageviews) that we can get from Google analytics (we currently process a XML file of the /sub/ drilldown for this info).
This all works well.
What I'd like to do is offer domain mapping through a CNAME record. Example:
www.jim.com acts as domain.com/sub/jim
Usually I'd setup a filter in GA for this new domain, but obviously I don't want to set up 3,000 filters.
Clearly with the new domain "jim" won't be a drilldown of "/sub/" anymore, so how can I access this data through Googles API or emailed reports?