| Event | Time | Date | Name | Meet | History |
|---|---|---|---|---|---|
| 50 Free | 20.95 | Feb. 17, 2023 | Rommin Adl | Midwest Conference Championships | |
| 100 Free | 45.46 | Feb. 19, 2023 | Rommin Adl | Midwest Conference Championships | |
| 200 Free | 1:38.61 | March 21, 2013 | Michael Brus | NCAA Division III Championships | |
| 500 Free | 4:30.72 | Feb. 15, 2013 | Michael Brus | Midwest Conference Championships | |
| 1000 Free | 9:47.68 | Jan. 31, 2014 | Michael Brus | Grinnell vs. Simpson & Nebraska(Club) | |
| 1650 Free | 16:00.65 | Feb. 15, 2015 | Ian Dixon-Anderson | Midwest Conference Championships | |
| 50 Back | 22.96 | Feb. 18, 2023 | Sean Colson | Midwest Conference Championships | |
| 100 Back | 49.01 | Feb. 15, 2013 | Michael Brus | Midwest Conference Championships | |
| 200 Back | 1:44.81 | March 23, 2013 | Michael Brus | NCAA Division III Championships | |
| 50 Breast | 27.66 | Feb. 3, 2024 | Harvey Wilhelm | Grinnell Mini-Invite | |
| 100 Breast | 55.65 | Feb. 16, 2024 | Ethan Yuen | Midwest Conference Championships | |
| 200 Breast | 2:03.04 | Feb. 19, 2017 | Will Lindell | Midwest Conference Championships | |
| 50 Fly | 24.55 | Feb. 3, 2024 | Aidan Choate | Grinnell Mini-Invite | |
| 100 Fly | 49.31 | Feb. 17, 2024 | Ethan Yuen | Midwest Conference Championships | |
| 200 Fly | 1:51.74 | Dec. 2, 2023 | Ethan Yuen | Pioneer Classic | |
| 100 IM | 53.37 | Dec. 3, 2022 | Ethan Yuen | Pioneer Classic | |
| 200 IM | 1:50.91 | Feb. 14, 2014 | Michael Brus | Midwest Conference Championships | |
| 400 IM | 3:57.94 | Feb. 17, 2024 | Kevin Fitzgerald | Midwest Conference Championships | |
| 200 Free Relay | 1:22.82 | Feb. 16, 2024 | Dolphin, Adl, Fitzgerald, Yuen | Midwest Conference Championships | |
| 400 Free Relay | 3:02.78 | Feb. 19, 2023 | Colson, Feilmeyer, Adl, Fitzgerald | Midwest Conference Championships | |
| 800 Free Relay | 6:48.17 | Feb. 15, 2014 | Bennett, Robinson, Lytle, Brus | Midwest Conference Championships | |
| 200 Medley Relay | 1:30.72 | Feb. 18, 2023 | Colson, Yuen, Fitzgerald, Adl | Midwest Conference Championships | |
| 400 Medley Relay | 3:20.82 | Feb. 16, 2024 | Fitzgerald, Wilhelm, Yuen, Adl | Midwest Conference Championships |
