(CNN) It's not very often that Michael Phelps gets knocked off the record board. But a 10-year-old swimming phenom with a superhero name has done just that.

His name is Clark Kent Apuada. And of course, they call him "Superman."

Over the weekend, Clark, who swims for the Monterey County Aquatic Team, competed at the Far West International Championship in California, where he won the 100-meter butterfly in 1:09:38.

That's more than a second better than the 100-meter butterfly record that Phelps set at the championship in 1995.

It had gone unbroken, while Phelps went on to win 28 Olympic medals.

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