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USA Swimming Zone Teams
| Time | Date | Name | Team | Meet |
|---|---|---|---|---|
| 3:45.12 | July 22, 2012 | betulius, Marciniak, Butler, Huff | Hawkeye Swim Club | Speedo Champions Series - Iowa City |
| 3:53.47 | July 25, 2009 | Dittmer, Hugo, Tremml, Gordon | Hawkeye Swim Club | Speedo Champions Series - Minneapolis |
| 4:00.36 | July 24, 2003 | Bratten, Gaul, Burke, Dorweiler | Des Moines Swimming Federation | Speedo Champions Series - Minneapolis |
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