Last night at Olympic Trials in Omaha, Aaron Peirsol and Natalie Coughlin each broke the world record in the 100 Backstroke. Natalie Coughlin became the first woman ever to swim the event in less than 59 seconds. Check out the article linked below for more details about last night’s trials.

Coughlin, Peirsol set world records on Day 3 of Trials

AFP: Coughlin breaks 100m backstroke world record

NBCOlympics.com - Phelps, Hoff break world records on opening night

Both Men and Women’s 400 IM World Records fall on the opening night of Olympic Trials. What great races! If you want to know how important flipturns are, watch how Phelps destroys Lochte on the turn - it’s right around 3:40 in the race then they show it again underwater around 4:55. Simply incredible streamline, dolphin kick, and mental toughness. Phelps won the race and broke the world record because of that turn.

Oh, and don’t forget about a new American Record in Men’s 400 Free. Hope you all got a chance to see those amazing swims. If not, or if you want to see them again, follow the link above to see videos of the record breaking swims.

Read about Natalie Coughlin’s new 100 Back World Record at CNN.com

Read about Katie Hoff’s new American Record in the 200 Free and others at usaswimming.org

Katie Hoff and Kate Ziegler (pictured above) continue to rewrite the American record books. Over the weekend, Ziegler broke the record in the 1650 Free, while Hoff set new standards in the 1000 Free, 500 Free, 200 IM, 400 IM, and a new NAG record in the 200 Free. For more, read this article from USASwimming.com.

American Records Fall Over the Weekend

Natalie Coughlin is certainly enjoying her time in the World Cup circuit. After winning the three events she competed in entering Sunday, Coughlin broke her own world record in the 100-meter backstroke, lowering the world mark by .2 seconds. Coughlin finished the race with a time of 56.51 seconds.

Click here to read more.

INDIANAPOLIS - Dara Torres’ 15th national title felt no different than her first, 25 years earlier.

The oldest national champion in U.S. swimming history, Torres set an American record in the 50-meter freestyle Saturday night in her bid toward a possible fifth Olympics appearance.

“It’s an awesome feeling,” she said at the USA Swimming National Championships. “I can’t put words on it to describe how I felt when I touched that wall and saw my time.”

Competing in the pool in which she qualified for her first Olympics as a teenager in 1984, two years after her first national championship, the 40-year-old Torres came in at 24.53 seconds, a personal best that surpassed her American record of 24.63 set in the 2000 Sydney Olympics.

The world record, also set in Sydney, is 24.13 by Inge de Bruijn of the Netherlands.

Torres won the 100 freestyle Wednesday, her first national title since she came out of retirement last summer after the birth of her first child.

“It feels exactly the same,” Torres said of the transition from a swimming wunderkind to the sport’s most senior citizen.

A former world-record holder at 50 meters, Torres beat Lara Jackson, who had a time of 25.27 in the final.

Torres said she felt no pressure getting back into competitive swimming.

“I just got in shape swimming with my daughter and I started swimming a couple of meets and I swam real fast,” said the 6-foot Torres, a Parkland, Fla., resident. “A lot of master swimmers were encouraging me to swim, so I just decided to get back into it.”

And she seems far from finished.

Her goal is to swim at the Beijing Games next year.

“I’m just going to take a couple weeks off and hopefully get back in training and start training for the Olympic trials,” she said.

Among other events on the final night of the five-day meet at the IU Natatorium, Katie Hoff, the world-record holder in the 400 individual medley, won the 200 IM for her third national title of the week, and Emily Brunemann, who was fourth in the 800 freestyle, beat her previous best time by eight seconds and won the women’s 1,500 for her first national title.

Ariana Kukors of Auburn placed seventh in the 200 IM.

Michael Phelps, who won two of his first four titles Friday night, passed up Saturday’s 200 IM but was part of the winning Club Wolverine team in the meet’s final event, the 400 medley relay. Phelps, Scott Spann, Davis Tarwater and Peter Vanderkaay won in 3:38.32.

“Probably not in the best training state right now, not in best physical shape we really want to be in,” Phelps said. “But all things considered, it was a pretty solid week.”

Ryan Lochte, the world-record holder in the 200 backstroke, won the 200 IM in 1:56.95. He won the 400 IM on Wednesday.

“The times I put up, I just raced tough,” Lochte said. “I’m happy with the overall meet.”

World champion Kate Ziegler (Great Falls, Va.) took down Janet Evans’ 19-year-old world record in the 1500m freestyle by almost 10 seconds Sunday at the TYR Meet of Champions in Mission Viejo, Calif. The 18-year-old bested Evans’ mark of 15:52.10 by turning in a time of 15:42.54. Evans’ record, set on March 26, 1988 in Orlando, Fla., was the oldest record in the books.

Ziegler recently defended her world championship in the 1500m freestyle when she posted a time of 15:53.42 at the FINA World Championships in Melbourne, Australia, earlier this year. At the Meet of Champions this weekend, Ziegler set new meet records in both the 200m free (1:58.80) and the 400m free (4:05.44).

“I am so thrilled for Kate’s success this past weekend not just in the 1500, but best times in several events,” Evans said afterward. “The 1500 has always been one of my favorites and to have such a terrific swimmer and person like Kate break my record at the same age that I did, was terrific.”

“In a sport where records are broken in hundredths of a second, you would have to consider Kate’s swim in the 1500 one of the greatest swims ever. I have spoken with Kate to congratulate her myself. USA Swimming should be proud to have an ambassador for the sport, distance swimming and being a role model like Kate.”