| Time | Date | Name | Meet |
|---|---|---|---|
| 1:34.61 | Feb. 16, 2018 | Morsch, Thompson, Shaw, Lockhart | Ohio Athletic Conference Championships |
| 1:35.96 | Feb. 17, 2017 | Allison, Thompson, Shaw, Lockhart | Ohio Athletic Conference Championships |
| 1:36.51 | Feb. 19, 2010 | Colwell, Musille, Diamond, Null | Ohio Athletic Conference Championships |
| 1:41.07 | Nov. 22, 2008 | Oberlin @ Baldwin-Wallace |
