(INDIANAPOLIS, IN) - A pair of American records fell on day one of the USA National swimming championships at the Indiana University Natatorium in Indianapolis.
Mark Gangloff set a new record in the men's 100-meter Breaststroke with a time of 59.1 seconds.
Julia Smit set a new national mark in the women's 200-meter individual medley at two minutes, nine and 34-hundreths seconds.
Tuesday's winners locked up spots on the US team for the World Championships later this month in Rome.
Michael Phelps begins his participation today.
The 14-time Olympic gold medalist is competing in the 200-meter butterfly and the 200-meter freestyle today.
Phelps is also racing in the 100-meter butterfly and 100-meter free later in the week.
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