I have feature results for all Indiana tracks for 2011 & 2012.
If your looking further back try going to
http://archive.org/web/web.php
Enter a tracks website and you will see a timeline of the past. I've found alot of results using this site. It can be frustrating because some of the links don't work.
Searching Usacracing.com will go back to 1998.
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