Leisel Jones of Australia, the 2008 Beijing Olympics champion, took the silver Tuesday in a time of 1:06.25. Ji Liping of China earned the bronze with a time of 1:06.52.
Soni set a then-world record of 1:04.84 while winning in Rome two years ago, but that mark was beaten by teammate Jessica Hardy, who finished in 1:04.45 later that year.
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