Update through game results of 3/25/12 ...
While the Cajuns' WP dropped from 1.0000 to .9677, the all-important OWP rose from .5185 to 5442 this weekend (it is twice as important as WP). The result is that the combined WP+OWP (properly weighted) rose from .6790 to .6854.
If I use a conservative estimate of .5000 for the Cajuns' OOWP, we have an overall RPI of .6390 (up from .6343 before the weekend).
The Troy series was big from an RPI standpoint because it added a three-game weighted high OWP to the Cajuns' schedule. Excluding all of the other opponent games since the Georgia Tech series (Thursday), the Troy series brought the Cajuns' OWP from .5185 to .5427. So, despite the one loss to the Trojans, the Troy series alone brought the Cajuns' combined WP+OWP from .6790 to .6844. The play of other Cajun opponents this weekend was responsible for the remainder .0010 increase (.6844 to .6854).
As for the play of other Cajuns opponents this weekend, the following opponents significantly helped/hurt the Cajuns' OWP ...
Helped:
Hostra 3-0 (improved from .3125 to .4211)
Houston 3-0 (improved from .5769 to .6207) * 2-game weighted
Mississippi Valley State 4-0 (improved from .4815 to .5484)
Boston 4-0 (improved from .6818 to .7308)
Tulsa 3-0 (improved from .7917 to .8148)
Note that I did not include Arizona State above because their WP is so close to 1.0000, wins do not help much. However, losses will hurt. Going 3-0 vs. Arizona this weekend only brings the Cajuns' OWP for Arizona State from .9333 to .9394. We will however, get a decent boost in OOWP from ASU adding Arizona to their schedule (weighted as three games).
I also did not include Michigan as they swept three games from Penn State (both single game opponents of the Cajuns). Though the effect is not completely a wash due to the effects of wins/losses compiled against OWPs over or under .5000.
Hurt:
North Texas is at the top of the list, going 1-3 and seeing their portion of our OWP drop from .5217 to .4815 (weighted three games). Of course, NT going 1-2 vs. FIU this weekend will come back to the Cajuns fully when the Cajuns add FIU to their schedule (assuming all three games can be played).
Also, Rutgers, UTEP, Northwestern, and Mississippi State went 0-3 while Winthrop went 0-4.
Brian