Michael Phelps

Michael Phelps swims to victory with a time of 50.89 seconds in the 100-meter butterfly. "This week turned out how I wanted it to," Phelps said. "I'm ready for the challenge that lies ahead of me." (AP photo / July 5, 2008)

It was supposed to be Rivalry Night at the U.S. Olympic swim trials last night.

Michael Phelps, in his final race of the week, was supposed to duel Ian Crocker, the world-record holder in the 100-meter butterfly. Crocker represents perhaps Phelps' biggest roadblock in his quest to win eight gold medals in Beijing.

Katie Hoff, in her final race of the week, was supposed to duel Kate Ziegler, the 2007 world champion in the 800 freestyle. Ziegler owns the second-fastest time in the history of the event and is the world-record holder in the 1,500 freestyle.

Both races were supposed to be closer than close.

Phelps and Hoff turned them both into blowouts.

First up, Phelps streaked by Crocker on the second half of the 100 butterfly, grabbing another win in a rivalry that has been one of the sport's best over the past four years.

The 100 fly is the one event that Phelps excels in in which he does not own the world record - Crocker has had it since 2005 - but last night Phelps didn't even have to post one of his best marks to pick up the victory. He touched the wall in 50.98 seconds, well ahead of Crocker's 51.62.

"I knew about two or three strokes out that I wasn't going to have the finish that I wanted," Phelps said. "There are a few little things I can work on between now and the Olympics."

Next up was Hoff, who actually came into her race cast as an even bigger underdog. Ziegler had a better semifinal time, more experience in the 800 and a faster personal best.

The two were right next to each other through the first 400 meters. Hoff had, at best, only a slight lead. But on the back half, Hoff turned it into a rout. She touched the wall in 8 minutes, 20.81 seconds, and Ziegler needed eight more strokes before she finished second (8:25.38).

"I was definitely planning on it being a tough race against her," Hoff said. "The first half really pushed me."

Neither Crocker nor Ziegler felt, physically, that they were at their best last night. Both said they were just happy to make the team and get a chance at a rematch in Beijing.

"It's an overriding sense of relief," Crocker said. "All week, I felt like all the young wolves were coming out to eat the old wolves. I'm just really thankful to be on the team."

With two more dominant performances on their final night of competition in the past week, despite tired legs and weary minds, what can be said without hesitation is that Phelps and Hoff have owned these trials.

Both won five individual events. Phelps set two world records (200 individual medley and 400 IM), and Hoff got one of her own (400 IM).

In Phelps' case, he'll be favored to win gold in each of his five races next month in China. Although the United States hasn't yet named its relay teams, he'll almost certainly be named to all three. He has looked calm and in control this week, by his own admission tougher mentally and stronger physically than he was four years ago at the U.S. trials in Long Beach, Calif.

"On the whole," Phelps said, "it was a pretty decent week. But I know it's going to be harder at the Olympics than it was here."

Hoff will also have a chance to win gold in all her events, but she won't be the favorite that Phelps is. She'll have strong swimmers from Australia and France as well as the U.S. gunning for her.

"I'm not one of those swimmers who doesn't want to see other swimmers' results," Hoff said. "I'm on all those swimming Web sites, checking out how my competitors are doing. I know they'll be at their best in Beijing, and I want to be at my best."