So far, BYU has held 5 of 6 opponents below a passer rating of 90.

For some perspective, before this season, BYU had only held 8 teams under a 90 rating under Kalani. Going all the way back to 1972, the most games of holding an opponent under a rating of 90 in a season was 9 times in 1979. Here's how many games BYU has held opponents under a rating of 90:
2023: 1
2022: 0
2021: 0
2020: 1
2019: 2
2018: 2
2017: 1
2016: 1
2015: 2
2014: 3
2013: 2
2012: 3
2011: 2
2010: 4
2009: 4
2008: 1
2007: 5
2006: 4
2005: 1
2004: 1
2003: 4
2002: 4