Katie Ledecky passes Michael Phelps for most individual golds

The 26-year-old American won the 800-meter freestyle on Saturday at the world championships to become the first swimmer to win six golds in the same event at worlds.

It was also her 16th individual world title, breaking a tie with Michael Phelps for the most golds at worlds.

"I'm pretty tough on myself," she said. "But I think I have found the balance of being tough on myself but also having that grace."

It was only the fourth gold for the United States in the seventh of eight days in the pool. Meanwhile, Australia has been piling it on with 13 golds, matching its best at the worlds. Australia won three more golds on Saturday.

The Americans lead the overall table with 31 medals (16 silver), Australia has 20 and China 13.