Did a search and couldn't find this site anywhere on BP. I thought it was pretty cool.
http://www.calpreps.com/cgi-bin/2006/project_matchup.pl
Here is one example, for NDChief.
Project your own hypothetical matchups, even pitting teams from different years against each other. You can select any 11-man U.S. team from 2003 on, and any 11-man California team from 2001/2002. You can even pit the older CA teams against later national ones, eg: 2001 De La Salle vs 2004 Southlake Carroll, etc.
http://www.calpreps.com/cgi-bin/2006/project_matchup.pl
Here is one example, for NDChief.
PROJECT A MATCHUP
at St. Xavier (Cincinnati, OH)
[2006] St. Xavier (Cincinnati, OH) 24, [2006] Warren Central (Indianapolis, IN) 23
at Warren Central (Indianapolis, IN)
[2006] Warren Central (Indianapolis, IN) 26, [2006] St. Xavier (Cincinnati, OH) 22
at neutral site
[2006] Warren Central (Indianapolis, IN) 26, [2006] St. Xavier (Cincinnati, OH) 24