| Name | Time | Date | Meet |
|---|---|---|---|
| Joe Grebner | 30.37 | July 24, 2022 | 2022 SD LC Championships |
| Joe Grebner | 30.71 | July 8, 2022 | 2022 ND AQST Summer Sizzler |
| Zachary Haugen | 30.88 | July 27, 2019 | South Dakota Long Course Championships |
| Jacob Fuhrman | 31.43 | July 23, 2009 | Speedo Champions Series - Minneapolis |
