| Time | Date | Name | Meet |
|---|---|---|---|
| 8:12.93 | March 26, 2015 | McCullagh, Baker, Postoll, CONNOLLY | Speedo Champions Series - Indianapolis |
| 8:14.07 | Aug. 8, 2014 | Adams, Mills, McCullagh, Postoll | Phillips 66 Summer National Championships |
| 8:18.40 | Aug. 1, 2013 | Baker, McCullagh, Arakelian, Roses | U.S. Open Swimming Championships |
| 8:21.49 | July 18, 2013 | Merritt, McCullagh, Marsh, Baker | NC Long Course Senior Champs |
| 8:26.66 | July 19, 2012 | Greenberg, McCullagh, Welshofer, Rhodes | NCS Senior LC Championships |
| 8:27.98 | Aug. 11, 2011 | Rhodes, McCullagh, Welshofer, Merritt | Speedo Junior National Championships |
| 8:36.37 | June 27, 2003 | Steenrod, O'Donnell, Baskwell, Oxford | Senior Circuit #3 |
| 8:40.45 | June 29, 2001 | Quinn, Gardner, Moore, Oxford | Senior Circuit #3 |
