STANFORD, Calif. - Missy Franklin won the 100-meter backstroke at the U.S. national championships Wednesday with the fifth-fastest time in the world this year.

The 16-year-old phenom touched in 59.18 seconds to win her first national title, two days after returning from the world championships in Shanghai.

Ryan Lochte, who won five golds in China, finished third in the men’s 100 backstroke.

“I did everything I could,” he said. “I’m running on ?E’ right now and my coach knows it.”

Franklin won three gold medals and a bronze in Shanghai, including the 200 backstroke title.

“It feels absolutely amazing,” she said, her youthful enthusiasm hardly dimmed by jet lag from the long flight and 15-hour time difference with Shanghai. “I’m so happy to be here.”

Rachel Bootsma was second at 59.65, joining Franklin as the only women under 1 minute.

Lochte was second at the turn before touching third behind Olympian Matt Grevers and Nick Thoman. Grevers, who didn’t make the U.S. team for worlds, won in 53.14. Thoman, fourth in the 100 back in China, was second at 53.57.

Lochte finished in 53.79.

“Backstroke was all right for how tired I am,” said Lochte, who announced he’s taking the rest of the meet off.

In other events, Peter Vanderkaay won the 200 free; Allison Schmitt took the women’s 200 freestyle; and Bobby Bollier won the 200 butterfly.

LSU swimmers fare well

Four LSU swimmers swam personal bests at the U.S. National Championship on Monday.

Amanda Kendall beat her previous 100-meter butterfly best in the preliminaries with a time of 1 minute, .60 seconds en route to clinching a spot in the ?C’ final. Kendall finished 23rd out of 184 competitors posting a time of 1:00.00 in the final.

Kendall will compete in the 50 freestyle Thursday and the 100 freestyle Saturday.

Sara Haley posted a time of 1:02.38 in the 100 butterfly. She will compete in the 200 fly Friday.

Craig Hamilton finished 50th in the 400 freestyle with a 3:59.59. He will swim in the 1,500 free Friday.

In the 200 IM, Sally Wood swam a 2:19.20 and placed 54th. She will compete in the 400 IM on Thursday.