| Time | Date | Name | Meet |
|---|---|---|---|
| 1:49.90 | March 30, 2019 | Ian Finnerty | NCAA Division I Mens Championships |
| 1:50.17 | March 24, 2018 | Ian Finnerty | NCAA Division I Mens Championships |
| 1:50.78 | Feb. 24, 2018 | Ian Finnerty | Big Ten Conference Championships (M) |
| 1:51.03 | March 2, 2013 | Cody Miller | Big Ten Conference Mens Championships |
| 1:54.00 | Feb. 27, 2010 | Aaron Opell | Big Ten Men's Championships |
| 1:56.24 | Feb. 27, 2009 | Aaron Opell | Big Ten Championships (Men) - Day Three - Finals |
| 1:56.80 | March 15, 2007 | Pat Penoyar | NCAA Division I Mens Championships |
