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USA Swimming Zone Teams
| Time | Date | Name | Team | Meet |
|---|---|---|---|---|
| 4:20.61 | Aug. 5, 2009 | Michael Walker | Bolles School Sharks | U. S. Open |
| 4:28.08 | July 14, 2007 | Michael Hulme | Bolles School Sharks | Janet Evans Invitational |
| 4:30.17 | March 29, 2007 | Michael Hulme | Bolles School Sharks | USA Swimming Spring Champ |
| 4:33.64 | April 1, 2003 | Yi-khy Saw | Bolles School Sharks | ConocoPhillips National Championships |
| 4:44.34 | June 27, 2002 | Brandon Cover | Bolles School Sharks | Bolles Sharks Long Course |
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