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USA Swimming Zone Teams
| Time | Date | Name | Team | Meet |
|---|---|---|---|---|
| 1:42.03 | Feb. 29, 2020 | Sefcik, Allen, Wong, Diaz | Nitro Swimming | ST TXLA STAGS SC Championship |
| 1:43.31 | Feb. 23, 2019 | Dennison, Cox, Torres-Jimenez, Deac | Austin Swim Club | ST WAVE STAGS Short Course Championship |
| 1:44.85 | Feb. 20, 2010 | Walker, Wu, Whiteman, Tenney | Nitro Swimming | South Texas Age Group Championship |
| 2:00.52 | Jan. 16, 2010 | Mangaoang, Chesterfield, Jimenez, Goodson | Alamo Area Aquatic Association | ST SASA Free Parking Meet |
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