From a Competition Bulletin issued by AMA Pro Racing:

TO: All Licensed Road Racers and Season Credential Holders
FROM: Ron Barrick, Road Race Manager
DATE: August 6, 2003
SUBJECT: Entry Restrictions

In order to maintain the integrity of grids in Superbike, Formula Xtreme and Superstock, the following entry restrictions are effective immediately:

The top ten riders in Superbike and Formula Xtreme championship points are restricted from entry in both classes unless they are in the top ten in championship points in both classes.

The top ten riders in Supersport championship points are restricted from entry in Superstock with a Supersport motorcycle, unless they are in the top ten in championship points in both classes.

If you have a pre-entry in any of the affected classes and are un-able to participate please notify the AMA Pro Racing office at (614) 856-1900 and we will refund your entry.

Should you have any questions concerning this change, please contact Road Race Manager Ron Barrick at (703) 250-3034.