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| Time | Date | Name | Team | Meet |
|---|---|---|---|---|
| 53.94 | Feb. 13, 2016 | Daniel Chang | Science Hill High School | Tennessee State Championships |
| 54.75 | Feb. 14, 2015 | Ethan Browne | Franklin High School | 15 Tennessee State Championships |
| 55.32 | Feb. 12, 2011 | Spencer Rowe | Baylor School (Chattanooga) | Tennessee Interscholastic Swimming Coaches Assocation State Meet |
| 56.21 | Feb. 13, 2010 | Spencer Rowe | Baylor School (Chattanooga) | Tennessee State Championships |
| 56.53 | Feb. 14, 2009 | Spencer Rowe | Baylor School (Chattanooga) | Tennessee Interscholastic Swimming Coaches Assocation State Meet |
| 57.16 | Feb. 23, 2008 | Brad Hamilton | Baylor School (Chattanooga) | Eastern Interscholastic Swimming Championship |
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