| Event | Time | Date | Name | Meet | History |
|---|---|---|---|---|---|
| 50 Free | 19.85 | March 11, 2020 | Guillaume Bolivard | NCAA Division II Championship | |
| 100 Free | 43.66 | Feb. 12, 2022 | Ruben Leeuwen | Great Lakes Valley Conference Championships | |
| 200 Free | 1:35.20 | March 10, 2022 | Ruben Leeuwen | NCAA Division II Championship | |
| 500 Free | 4:25.19 | Feb. 12, 2015 | Victor Tarin | Great Lakes Valley Conference Championships | |
| 1000 Free | 9:11.77 | March 9, 2011 | Kevin Coates | NCAA Division II Championships | |
| 1650 Free | 15:20.71 | March 12, 2011 | Kevin Coates | NCAA Division II Championships | |
| 50 Back | 21.73 | Nov. 19, 2022 | Nico Jacinto | House of Champions Invitational | |
| 100 Back | 47.05 | Nov. 22, 2014 | Bryan Wiener | House of Champions Invitational | |
| 200 Back | 1:46.34 | Feb. 11, 2017 | Mads Knoblauch | Great Lakes Valley Conference Championships | |
| 50 Breast | 25.30 | Nov. 17, 2023 | Ahmed Ismail | House of Champions Invitational | |
| 100 Breast | 54.06 | Nov. 17, 2023 | Ahmed Ismail | House of Champions Invitational | |
| 200 Breast | 1:58.89 | March 12, 2022 | Rhys Taylor | NCAA Division II Championship | |
| 50 Fly | 22.13 | Oct. 13, 2023 | Nico Jacinto | Lewis vs Illinois Wesleyan | |
| 100 Fly | 47.65 | Nov. 17, 2023 | Davidson Vincent | House of Champions Invitational | |
| 200 Fly | 1:47.31 | Feb. 14, 2020 | Ruben Leeuwen | Great Lakes Valley Conference Championships | |
| 100 IM | 52.19 | Dec. 2, 2022 | Ari Kissel | Valparaiso vs. Butler vs. Lewis | |
| 200 IM | 1:49.37 | Nov. 16, 2023 | Kirill Sidorko | House of Champions Invitational | |
| 400 IM | 3:52.39 | March 9, 2023 | Mariano Sosa | NCAA Division II Championship | |
| 200 Free Relay | 1:20.86 | Nov. 17, 2022 | Jacinto, Kissel, Fox, May | House of Champions Invitational | |
| 400 Free Relay | 2:58.82 | March 11, 2023 | Jacinto, Kissel, Sidorko, May | NCAA Division II Championship | |
| 800 Free Relay | 6:38.87 | Nov. 18, 2022 | Sidorko, May, Smedley, Burmaoglu | House of Champions Invitational | |
| 200 Medley Relay | 1:27.50 | Feb. 8, 2023 | Jacinto, Ramsey, Kissel, May | Great Lakes Valley Conference Championships | |
| 400 Medley Relay | 3:15.03 | Feb. 9, 2023 | Jacinto, Ramsey, Kissel, May | Great Lakes Valley Conference Championships |
