| Time | Date | Name | Meet |
|---|---|---|---|
| 1:45.49 | March 28, 2023 | Rex Maurer | Loyola Invitational |
| 1:45.90 | May 11, 2017 | Sean Lee | California CIF Southern - Div 1 Section Championships |
| 1:48.15 | May 12, 2016 | Sean Lee | California CIF Southern - Div 1 Section Championships |
| 1:48.37 | May 14, 2015 | Sean Lee | 15 California Southern - Div 1 Section Championships |
| 1:50.83 | May 9, 2013 | Peter Kropp | 13 California Boys & Girls Southern - Div 1 Section Championships |
| 1:52.90 | May 10, 2012 | Connor Johnson | 12 California Boys & Girls Southern - Div 1 Section Championships |
| 1:54.42 | May 11, 2011 | Colin Duffy | California Boys & Girls Southern - Div 1 Section Championships |
| 1:54.83 | May 12, 2010 | Colin Duffy | CIF Southern Section Division 1 Championship |
| 1:56.38 | May 13, 2009 | Ryan Cunningham | 09 CIF Southern Section Division I Championships |
| 2:00.66 | May 8, 2007 | EJ Schloss | CIF-SS Division II Championships |
