| Name | Time | Date | Meet |
|---|---|---|---|
| Michael Petrides | 4:20.07 | March 1, 2018 | ST TXLA American Short Course Championships |
| Michael Petrides | 4:23.35 | Dec. 7, 2017 | Speedo Winter Junior Championships - West |
| Michael Petrides | 4:26.62 | Dec. 19, 2016 | Hawaiian Senior Fall Championships |
| Ryan Stack | 4:30.79 | March 15, 2014 | Speedo Champions Series - Federal Way |
| Kacy Johnson | 4:31.79 | March 10, 2010 | Speedo Champions Series - Federal Way |
