| Time | Date | Name | Meet |
|---|---|---|---|
| 6:28.33 | Dec. 7, 2022 | Wang, Bishop, Kelly, Rowe | Speedo Winter Junior Championship West |
| 6:31.87 | March 3, 2022 | Walker, Rowe, Flanders, Kelly | Speedo Sectionals - College Station |
| 6:32.79 | Dec. 7, 2016 | Rawls, Connealy, Grieshop, Yeager | Speedo Winter Junior Championships - West |
| 6:32.88 | Dec. 9, 2015 | Rawls, Grieshop, Slaton, Abbott | Speedo Winter Junior Championships - West |
| 6:33.64 | Dec. 10, 2014 | Grieshop, Tenney, Abbott, Jackson | Speedo WInter Junior Championships |
| 6:40.87 | March 13, 2013 | NCSA Junior National Championships | |
| 6:43.48 | Dec. 9, 2011 | Ellis, Licon, Anderson, Mendoza | Speedo Junior National Championships |
| 6:59.97 | March 6, 2010 | Bishop, Montoya, Anderson, Mendoza | Southern Sectionals |
| 7:01.03 | March 18, 2009 | Allen, Bado, Puryear, Mendoza | NCSA Junior National Swimming Championships |
| 7:02.96 | March 22, 2007 | Frankenfeld, Kerwick, Rivette, Storvik | NCSA Junior Nationals |
