| Time | Date | Name | Meet |
|---|---|---|---|
| 2:56.14 | May 12, 2023 | Maurer, Larrick, Liu, Cahill | CIF State Championships |
| 2:57.52 | May 3, 2023 | Maurer, Liu, Larrick, Cahill | CIF-SS Division 1 Championships |
| 2:58.50 | May 13, 2022 | Maurer, Larrick, Cahill, Kim | CIF State Championship |
| 2:58.86 | May 4, 2022 | Maurer, Larrick, Cahill, Kim | CIF-SS Division 1 Championships |
| 2:59.40 | May 27, 2021 | Maurer, Kim, Larrick, Brearton | California CIF Southern - Div 1 Section Championships |
| 2:59.65 | May 2, 2019 | Lee, Pernecky, Kim, McCrary | CIF Southern - Division 1 Section Championship |
| 3:01.53 | May 11, 2017 | Lee, Kim, Pernecky, Lee | California CIF Southern - Div 1 Section Championships |
| 3:02.63 | May 12, 2016 | Lee, Kim, Schneider, Sung | California CIF Southern - Div 1 Section Championships |
| 3:03.56 | May 14, 2015 | Sung, Lee, Jo, Kim | 15 California Southern - Div 1 Section Championships |
| 3:03.71 | May 15, 2014 | Otazu, Lee, Wilson, John | 14 California Southern - Div 1 Section Championships |
| 3:04.65 | May 11, 2011 | Abramyan, Dalby, Duffy, Cunningham | California Boys & Girls Southern - Div 1 Section Championships |
| 3:04.66 | May 12, 2010 | Abramyan, Dalby, Sharpe | CIF Southern Section Division 1 Championship |
| 3:08.15 | May 6, 2008 | Muller, Cooper, Ogilvie, Monroe | CIF-SS DIV II |
| 3:10.36 | May 8, 2007 | Kuhn, Muller, Monroe, Newman | CIF-SS Division II Championships |
| 3:14.20 | May 12, 2004 | Banks, Andrejich, Nam, Thordarson | CIF DIV I |
