2014 (9-4 Utah): FCS Idaho State. 56-14 Utah Win.
2013 (5-7 Utah): FBS Utah State. 30-26 Utah Win.
2012 (5-7 Utah): FCS N. Colorado. 41-0 Utah Win.
2011 (8-5 Utah): FCS Montana St. 27-10 Utah Win.
2010 (10-3 Utah): FBS Pittsburgh. 27-24 Utah Win.
2009 (10-3 Utah): FBS Utah State. 35-17 Utah Win.
2008 (13-0 Utah): FBS Michigan. 25-23 Utah Win.
2007 (9-4 Utah): FBS Oregon State. 24-7 Utah Loss.
2006 (8-5 Utah): FBS UCLA. 31-10 Utah Loss.
2005 (7-5 Utah): FBS Arizona. 27-24 Utah Win.

So Utah is 5-2 in openers against FBS teams, but two of those wins are against USU, so we're 3-2 in openers against P5 teams. Of course, we're 2-0 against Michigan with Whit as the coach, and 1-0 against Michigan in the opener (and both of those games were on the road).