A brief explanation of adjusted stats

The adjusted stats are simply the stats for each team adjusted for their competition . Per game stats are adjusted giving equal weight to each opponent, however the per play stat adjustments are a little different. As an example, Team A plays Army and Oklahoma. If Army has a passing efficiency of 100 and Oklahoma has a passing efficiency of 200, simply averaging Team A's opponents' ratings will put their expected defensive passing efficiency allowed at 150. However, if Army attempts only 5 passes against Team A while Oklahoma attempts 45, this is clearly incorrect. The true expected defensive passing efficiency should instead be 190, weighted for the number of pass attempts faced against each opponent. This is how the adjusted per play stats are calculated.

The 2009 data is now available. Keep in mind that some of the stats will be highly volatile early in the season, even moreso than the ratings, because the connection strength for some of the stats such as punt returns could be very low or they may even be unconnected even after the teams themselves are connected.

The 2009 game report is available here and the extremes table here. Note that unplayed games have a link to a matchup preview under the boxscore heading. These previews will be based on final 2008 season stats until the first edition of the 2009 stats are released, so obviously the previews should be taken with a grain of salt at the beginning of the year. The previews will self-update after every release of the stats as the year progresses.

A 2008 game report is available here and a table of single game extremes is here.