Carlton, who will be a junior at Mount Vernon High School this fall, turned in a time of 1 minute, 1.97 seconds – just more than a second off her qualifying mark for the event, but she was one of only 13 swimmers born since 2000 in a field of 135.
The University of Kentucky’s Kelsi Worrell had the top preliminary time of 56.84 seconds. The top 16 swimmers advanced to the event semifinals later Sunday, and the final was scheduled for later Monday.
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