The men's 100m backstroke was classic Matt Grevers, who used his trademark back-half speed to pull ahead in the final 50 meters for the win.
David Plummer was right there with him, finishing 19-hundredths of a second behind. Jeremy Stravius of France was third in 53.21.
"It fun to win these big events, so I'm happy," Grevers said. "I thought I was going to do a little more. I turned the switch on a little bit early, and I should have expected with the sort of training I did this year, the last 15 to 10 meters were going to hurt bad. I was just hoping it wouldn't."
Tuesday's race was the second straight year the Americans finished 1-2 in the men's 100m back at a major international competition. Last year, it was Grevers and teammate Nick Thoman who took gold and silver at the 2012 Olympic Games in London.
"That's what I'm most excited about," Grevers said. "David's an amazing guy. That win is big for him all around, so it's really cool to see we were able to do that."
Grevers became the 4th American to win gold at an Olympics and at an World Championship in back-to-back years (Aaron Piersol, Lenny Krayzelburg and Jeff Rouse).
Plummer was pleased to carry on the American tradition in the 100 back.
"To be up there with matt in the top two spots for our country is really amazing," Plummer said. "I think the whole heat would have liked to have been faster, but getting my hand on the wall second was all that mattered."
Elsewhere UA's Kevin Steel failed to qualify for the Final in the men's 50m Breaststroke. Steel finished 12th in the Semifinal. His time of 27.60 was .34 seconds off his American record time (27.26) which if he could have matched or better would have placed him in Wednesday's Final.
World record holder Cameron Van der Burgh (South Africa) touched in 26.81 to post the top time in the Semifinals.
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David Kelly contributed to this story.
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