| Time | Date | Name | Meet |
|---|---|---|---|
| 4:30.50 | March 16, 2024 | Jacob Hewett | USRY Short Course Champs |
| 4:31.52 | Feb. 23, 2024 | Jordan Hewett | CYSL Winter Small Team Championship |
| 4:31.58 | Feb. 9, 2024 | Jordan Hewett | South Carolina Senior Championships |
| 4:35.89 | Feb. 3, 2024 | Jordan Hewett | February CYSL Swim Meet |
| 4:47.29 | Dec. 3, 2022 | Jordan Hewett | SC CYSL Hartsville Winter Warmup |
| 4:50.39 | Jan. 7, 2017 | Edward Lee | 2017 Georgetown YMCA Snowflake Meet |
