| Time | Date | Name | Meet |
|---|---|---|---|
| 1:28.87 | Dec. 8, 2021 | Walker, Wu, Flanders, Kelly | Speedo Winter Junior Championship West |
| 1:30.59 | Dec. 7, 2016 | Gwin, Geheb, Tan, Connealy | Speedo Winter Junior Championships - West |
| 1:31.07 | March 6, 2015 | Whiteman, Rawls, Tenney, Jackson | American Short Course Championships |
| 1:31.30 | Dec. 10, 2014 | Whiteman, Rawls, Tenney, Jackson | Speedo WInter Junior Championships |
| 1:33.07 | Dec. 13, 2013 | Whiteman, Thomas, Tenney, Jackson | Speedo Winter Junior National Championships |
| 1:33.29 | Dec. 9, 2011 | Curley, Licon, Howells, Ellis | Speedo Junior National Championships |
| 1:35.21 | Dec. 11, 2009 | Allen, Gunn, Curley, Bishop | Speedo Junior Nationals |
| 1:36.52 | March 17, 2009 | Allen, Bishop, Bado, Yarbrough | NCSA Junior National Swimming Championships |
| 1:40.25 | March 20, 2007 | Storvik, Sarich, Kerwick, Frankenfeld | NCSA Junior Nationals |
| 1:45.13 | Jan. 28, 2007 | Storvik, Sarich, Puryear, Puryear | NT COPS A Greater Southwe |
