LONDON, England  (AP) — Ryan Lochte turned his much-anticipated duel with Michael Phelps into a blowout, pulling away to win the Olympic 400-meter individual medley by more than 3 seconds Saturday night. Even more stunning: Phelps didn't win any medal at all.

After barely qualifying for the evening final in a performance that hinted at trouble ahead, Phelps struggled to a fourth-place finish and was denied his 17th career Olympic medal. When it was done, he could barely pull himself out of the pool.

"It was just a crappy race," Phelps said. "I felt fine the first 200, then I don't know. They just swam a better race than me, a smarter race than me, and were better prepared than me. That's why they're on the medal stand."

Lochte took the gold with a time of 4 minutes, 5.18 seconds. Brazil's Thiago Pereira (4:08.86) settled for silver, while Japan's Kosuke Hagino (4:08.94) claimed the bronze — beating Phelps by a fairly comfortable 34-hundredths of a second for the last spot on the podium.

It was the first time since the 2000 Sydney Games, when Phelps was a 15-year-old unknown who qualified in just one event, that he didn't win at least a bronze in an Olympic race. Since then, he was 16-of-16 — 14 golds and two bronzes.

Lochte climbed out of the pool with a big smile, waving to the crowd and looking about a fresh as he did at the start. He had predicted this would be his year and, for the first race of the Olympics at least, he was right on the mark.

"I think I'm kind of in shock right now," he said. As for Phelps, "I know he gave it everything he had. That's all you can ask for."

Phelps was trying to become the first male swimmer to win the same individual event at three straight Olympics. He'll have three more chances at a threepeat before he's done in London, having also won the 200 individual medley, plus the 100 and 200 butterfly, at Athens and Beijing.