losing by 5, and lost to Top 25 UCLA in Triple OT. They also handled a solid UC Irvine team and as BYU Fan pointed out, a very good Pacific team.
At the same time, they failed to show up against CSUB, CSUN, and UCSB.
I suspect that "good" Pepperdine shows up ready to play against BYU, because they have shown up against every Top 100 team they've played this season.