| Time | Date | Name | Meet |
|---|---|---|---|
| 1:33.94 | Feb. 23, 2024 | Lowder, Tichy, Dilger, Fogarty | CCIW Championships |
| 1:34.88 | Feb. 19, 2010 | Firth, Gilbert, Kozak, Caras | College Conference of Illinois & Wisconsin Championships |
| 1:35.77 | Feb. 20, 2009 | Firth, Gilbert, Kozak, Held | CCIW Championships |
| 1:36.32 | Feb. 23, 2008 | Barnish, Rock, Kozak, Busch | Midwest Invitational Last Chance Meet |
| 1:36.36 | Feb. 11, 2005 | Mikkelson, Rock, Gorson, Gorson | CCIW Championships |
| 1:40.05 | Feb. 14, 2003 | Sur, Meyer, Budny, Butler | CCIW Swimming Championships |
| 1:41.73 | Feb. 15, 2002 | Horvath, Massaro, Blogg, Budny | CCIW Championships |
