Canada's Brent Hayden, right, and American Nathan Adrian check their times after the race. ((Robyn Beck/AFP/Getty Images))

Brent Hayden of Vancouver won the silver medal in the 100-metre freestyle and the Canada's women's 4x200 freestyle relay took bronze on Thursday at the Pan Pacific swimming championships.

Canada has three medals after two days of racing. On Wednesday, Ryan Cochrane of Victoria earned gold in the 1,500 freestyle.

In the men's 100 freestyle, Nathan Adrian of the United States took the gold in a meet record 48.15 seconds edging out Hayden, who also beat the old meet record time in 48.19. They were the two fastest times in the world this year. Cesar Cielo of Brazil was third in 48.48.

"Everything in that race felt really good," said Hayden, the defending champion in the event. "I was catching up to Nathan and I did everything I could to touch the wall first. I was happy with the performance but I wish I had the gold."

In the women's 4x200 freestyle, the U.S. was first in seven minutes 51.21 seconds, Australia second in 7:52.64 and Canada third in 7:54.32. The Canadian swimmers were Genevieve Saumur of Montreal, Julia Wilkinson of Victoria, Barbara Jardin of Montreal and Samantha Cheverton of Pointe-Claire, Que.

"Genevieve and I have been on this relay for five years and it's the first time we've won a medal at a major meet," Wilkinson said. "We really want to start getting on the podium internationally in the women's relays."

Added Jardin: "We took a couple of big steps. Not only did we get the medal but we also gained some ground on the Australians."

Pierse happy with result

Other Canadian finalists in women's competition were Victoria Poon of Montreal fifth in the 100 freestyle, Annamay Pierse of Vancouver and Alexa Komarnycky of Victoria, sixth in the 100 breaststroke and 400 IM respectively and Wilkinson seventh in the 50 backstroke.

Pierse, who missed six weeks of training this year due to illness, was happy with her performance as she clocked a season best 1:07.90.

"I came back with a very controlled race after being all over the place in the prelims," said Pierse, the world record holder in the 200 breaststroke.

Other men finalists were the 4x200 freestyle relay placing fourth with Hayden, Colin Russell of Oakville, Ont., Brian Johns of Vancouver and Stefan Hirniak of Victoria. Johns was also fifth in the 400 IM.

In other events, Ryan Lochte flirted with the world record in the 400-metre individual medley before settling for a gold medal and the year's fastest time.

The American led all the way and touched in four minutes, 7.59 seconds, lowering his own meet record of 4:08.77 set in the morning heats.

Lochte was under the pace of Michael Phelps' world record through 150 metres of the gruelling four-stroke race. But he fell off it on the breaststroke leg.

"I just went out fast and tried to hold on for dear life," Lochte said. "I'm just going out there, having fun and racing. Whatever the outcome is, I'll take it."

Phelps misses out

Phelps had the fourth-fastest qualifying time, but he didn't make the final because Lochte and Tyler Clary were quicker. Only two swimmers per country are allowed in the finals at Pan Pacs, the year's biggest international meet.

Clary earned the silver in 4:09.55. Thiago Pereira of Brazil was third in 4:12.09.

"It's absolutely the hardest event you can do in the pool," Clary said. "It's on top of the pain charts. You have to put in the work to swim it at a sub-4:10 level."

It was Lochte's second gold of the meet, having won the 200 freestyle on Wednesday.

"He's having an amazing year," Clary said.

Natalie Coughlin claimed the women's 100 freestyle for the third time. An 11-time Olympic medallist, Coughlin touched in 53.67, lowering the meet record of 53.76 set by American Amanda Weir in 2006.

Coughlin won the event that year and also at the 2002 Pan Pacs.

American Dana Vollmer and Emily Seebohm of Australia tied for the silver medal at 53.96. Aussie Yolane Kukla, who led at the turn, was fourth.

Coughlin's time was third-fastest in the world this year.

World champion Rebecca Soni of the U.S. led all the way in winning the 100 breaststroke in 1 minute, 4.93 seconds, quickest in the world this year and third-fastest ever. She lowered the meet record for the second time Thursday.

Two-time Olympic medallist Leisel Jones of Australia took the silver in 1:05.66. Aussie Sarah Katsoulis was third. Four-time Olympian Amanda Beard of the U.S. was fifth.

In the men's 100 breast, two-time Olympic champion Kosuke Kitajima of Japan won in 59.35, slower than his meet-record of 59.04 set in the morning heats.

Christian Sprenger of Australia was second in 1:00.18. American Mark Gangloff was third in 1:00.24. World record holder Brenton Rickard of Australia was fifth.