| Time | Date | Name | Meet |
|---|---|---|---|
| 1:24.44 | Feb. 21, 2024 | Ostrowski, Lisoway, Stoddard, Ksiazek | Mountain Pacific Sports Federation Championships |
| 1:24.57 | Feb. 20, 2019 | Aydin, Kokko, Chaba, Wynn | Mountain Pacific Sports Federation Championships |
| 1:26.20 | Feb. 14, 2018 | Aydin, Kokko, Chaba, Wynn | Mountain Pacific Sports Federation Championships |
| 1:26.25 | Feb. 15, 2017 | Aydin, Springhetti, Ornelas, Wynn | Mountain Pacific Sports Federation Championships |
| 1:27.11 | Feb. 18, 2015 | Perkins, dePaula, Hennebach, Maclean | Mountain Pacific Sports Federation Championships |
| 1:27.27 | Feb. 19, 2014 | Perkins, dePaula, Hennebach, Maclean | Mountain Pacific Sports Federation Championships |
| 1:28.43 | Feb. 23, 2011 | Anastasescu, Sharify, Pickett, Reyes | Conference USA Championships |
| 1:28.61 | Feb. 25, 2009 | Conference USA Championships - Day One - Finals |
