| Name | Time | Date | Meet |
|---|---|---|---|
| Joe Grebner | 57.69 | March 1, 2024 | 2024 SD SC 13&O State A Championship Meet |
| Chris Erickson | 57.92 | March 4, 2018 | South Dakota Short Course Championships |
| Dan Grebner | 58.03 | Nov. 11, 2016 | November Open |
| Dan Grebner | 1:00.79 | March 13, 2015 | Speedo Champions Series - Iowa City |
| Adam Kastigar | 1:02.35 | March 11, 2011 | Speedo Champions Series - Waukesha, WI |
