Omaha, NE (My Sportsbook) - Michael Phelps and Katie Hoff won their fifth individual events at the U.S. Olympic Swimming trials, while Saturday produced a banner night for Margaret Hoelzer and Garrett Weber-Gale.

Also, 41-year-old Dara Torres continued to amaze the swimming world by advancing to Sunday's final of the 50-meters with an American record.

Phelps captured the 100-meter butterfly in a time of 50.89 seconds to rally past world record-holder Ian Crocker (51.62), and Gil Stovall (52.08) was third.

Phelps' four other titles at these trials were from the 200 and 400 individual medleys, the 200 free and 200 butterfly. Phelps is slated to compete in eight events in Beijing, including three relays.

The 23-year-old Phelps will chase Mark Spitz's record of seven gold medals at a single Olympics when he goes to Beijing in August. Four years ago, Phelps won six gold medals and two bronze in Athens.

"I'm excited, I'm ready for the challenge that lies ahead of me," Phelps said. "I think at the Olympics it's going to be harder than it was here. It's a higher level. It's something I'm looking forward to and hopefully it's something I'll be successful at."

Hoff won the 800 meters in a time of 8 minutes, 20.81 seconds. Kate Ziegler (8:25.38) was second.

Hoff's four other individual events won at these trials were the 200 and 400 freestyle events and individual medleys.

Weber-Gale, the winner of Thursday night's 100-meter freestyle final established an American record by winning the 50-meter freestyle in a time of 21.47 seconds, eclipsing the old mark of 21.59 set just a day prior by Cullen Jones.

Ben Wildman-Tobriner was second at 21.65, with Jones (21.81) and Gary Hall Jr. (21.91) third and fourth, respectively.

By making the relay team, Jones is just the third African-American swimmer in the history of the U.S. Olympic squad.

Hall, who was the two-time defending champion in the event at the Summer Games, failed in his bid to make his fourth Olympics.

Hoelzer set a world record in winning the 200-meter backstroke. She finished in a time of two minutes, 6.09 seconds, besting the previous old world mark of Zimbabwe's Kirsty Coventry (2:06.39) from this February.

Elizabeth Beisel, who was named to the Olympic team due to a second-place finish in the 400-meter individual medley, was second at 2:06.92, while Hayley McGregory, who set the early pace was third at 2:07.69.

"I wanted to be close at the 100 and wanted to go out with Hayley and be in front of Elizabeth at the end," Hoelzer said. "I don't know how you can't be excited to race in an event like this."

Hoelzer was the fifth-place finisher in the 2004 Olympics in the 200 backstroke.

"This is my first world record," Hoelzer said. "It's a wonderful surprise. I'm in awe and amazed. I'm happy to be where I am right now."

On Friday night, the 41-year-old Torres, mother of a two-year-old daughter, clinched a spot in her fifth Olympics by winning the 100-meter freestyle. A night later she shattered the American record in the 50 with a time of 24.38 seconds. It was a mark that was set earlier on Saturday by Lara Jackson in the prelims and then eclipsed in the first heat by the 24.48 from Jessica Hardy.

Kara Lynn Joyce (24.70) was third-best and Jackson (24.94) as fourth, also making the final.

It's been an incredible Olympic run for Torres, winner of nine medals, starting with a relay gold in 1984 in her current home city of Los Angeles, and most recently capturing four medals in 2000 -- this after coming out of a seven-year retirement.

Not only that, but last November Torres had surgery to remove a bone spur responsible for a partial rotator cuff tear in her right shoulder. She also had surgery on her knee in January.

Torres said she also had to deal with crank phone calls Friday night, which allowed her to get only four hours of sleep. Torres said her body hurt Saturday morning before getting into the pools for the preliminaries.