2022 U.S. Swimming World Championships Trials: Caeleb Dressel takes third win, Olympic champ Chase Kalisz qualifies in 400m IM, Hunter Armstrong sets world record

It's day three of the U.S. Swimming World Championship Trials at the Greensboro Aquatic Center as the top US swimmers continue their quests to be named to the 2022 World Championships in Budapest. The Worlds begin June 17 and run through July 3.

The competition kicked off on Tuesday morning and will conclude on Saturday night with the top two finishers in each individual event being selected.

Check out what happened on Wednesday.

Olympics.com will provide you with regular updates of the action.

Here is everything you need to know about the event.

7:25 pm - Armstrong sets 50m backstroke world record

Hunter Armstrong capped off a record-setting day at the U.S. trials with one of his own: a world record in the men's 50m backstroke. Armstrong swam a 23.71 ahead of Justin Ress's 23.92.

"I'm at a loss for words, honestly. It's something that I've always wanted and I'm just... I'm over the moon right now. I'm so blessed to compete at this meet with the best athletes in the world, and I don't think I would have been able to do that without racing them," said Armstrong.

The 21-year-old was quick to share the credit for his world record swim.

"We have a great culture down at Ohio State and a lot of it is this culture that we've built of just friendship and constantly building each other up," said Armstrong. "I attribute a lot of my success to my teammates and, of course, my coaches."

7:15 pm - Berkoff sets 50m backstroke American record

Minutes after Andrew's American record swim, Katharine Berkoff set one of her own in the 50m backstroke with a 27.12 time. Regan Smith, who had set a U.S. Open record earlier in the day, was second at 27.25. Meanwhile, reigning world champion Olivia Smoliga will miss out on the worlds after finishing third at 27.33. All three swam faster than the previous American record.

"It feels awesome, it's nice to have some long course success this year," Berkoff said. "It was fun racing."

7:08 pm - Andrew sets American record on busy day

On a day where Michael Andrew is set to swim the 100m butterfly, 50m breaststroke and 50m backstroke, he found the time to set an American record. His 26.52 in the 50m breaststroke, his second of the three events, bested Nic Fink's 26.55, which would have also been a new record.

"I knew coming into this session, I had to focus on one race at a time. After securing a spot in the 100 fly, I had nothing to lose so I just decided to go for it," said Andrew. "It's a tough schedule. It's just kind of the way the events fall, so I figured I'd have to go into it as best as I could mentally. It's definitely tough after this morning, I was like, 'It's going to be a tight one.'"

6:56 pm - King wins 50m breaststroke

With the second fastest time of the year, Olympic champion Lilly King won the 50m breaststroke. Her 29.76 was more than half a second faster than second place Kaitlyn Dobler (30.34). Lydia Jacoby, who won the 100m breaststroke at last summer's Olympic Games, was third at 30.35.

"It's great. 50 is probably my favourite event, haven't be able to swim it in three years. It was fun to get a good one under my belt," said King. "It's definitely been a weird year just because the season's been so short, but I feel like I've put a lot of good work in since January. I think it's paying off."

6:48 pm - Dressel cruises to 100m butterfly win

Seven-time Olympic gold medallist Caeleb Dressel continued his winning ways in Greensboro, taking the 100m butterfly with ease. It was his third win of the competition so far.

Dressel clocked a 50.20, while second place Michael Andrew swam a 50.88.

6:40 pm - Another 1-2 finish for Huske, Curzan

Teenagers Torri Huske and Claire Curzan recorded their third 1-2 finish of the week in the women's 100m butterfly with Huske taking the top spot (56.28). Curzan was close behind at 56.35. Those finishes represent the top two times of 2022.

Earlier in the week, Huske won the 100m free with Curzan second, while Curzan won the 50m butterfly just ahead of Huske.

"It's really fun. I'm so excited for her to come [to Stanford] next year to like race her every day in practice," Huske said of the burgeoning rivalry. "I always really liked racing her and I feel like we both bring out the best in each other.

6:28 pm - Foster upsets Olympic champion Kalisz in men's 400m IM

It was a close call for 2020 Olympic 400m individual medley gold medallist Chase Kalisz in the event in which he owns two Olympic medals, but the 28-year-old held off a surging Bobby Fink to finish second by just .07 and earn a spot at June's World Championships. Kalisz's time was 4:10.50 to Fink's 4:10.57.

Carson Foster, 20, won the race, which included the top six from last summer's U.S. Olympic trials. He swam a 4:09.33.

"It means a lot. I know I've had my fair share of struggles in the finals and you know Chase [Kalisz] has done a ton for me this year, reaching out and helping me with a lot of the stuff in that race. That says a lot about him and how much he cares about this event for our country," said Foster. "He goes over my races with me throughout the whole season, sends me a lot of encouraging texts after some disappointing swims and just really showing that he believes in me and wants me to succeed as well.

"I owe a lot to him," he concluded.

6:14 pm - Grimes wins women's 400m individual medley in opening final

16-year-old Katie Grimes, a member of U.S. team at Tokyo 2020, defeated Olympic silver medallist Emma Weyant in Thursday's (28 April) opening final, the women's 400m individual medley.

Grimes finished in 4:36.17 with Weyant close behind at 4:37.72.

"It just all goes back to my training. Everybody who has seen me train that race in the past knows that that race was a long time coming," Grimes told U.S. broadcaster Olympic Channel. "The past times I've swam that race, it really hasn't worked out like I wanted it to. But it all came together really nicely."

12:07 pm - Regan Smith sets U.S. Open record in 50m backstroke during prelim round

Three-time Olympic medallist Regan Smith swam a 27.40 time in the prelim heats of the 50m backstroke, setting a U.S. Open record. Smith is the 2019 world backstroke champion at 200m.

Elsewhere, 2020 Olympic champion Chase Kalisz dominated the 400m IM - the event in which he struck gold at Tokyo - and finished nearly two seconds ahead of second place. Caeleb Dressel, winner of seven Olympic golds, was the top qualifier in the 100m butterfly, while Lilly King topped the women's 50m breaststroke heats.

Day three features busy schedule

Here's what's on tap for Thursday's competition, all times are local to the event (ET).

Prelims Schedule:

9:00am - Women's 400m Individual Medley
9:31am - Men's 400m Individual Medley
10:00am - Women's 100m Butterfly
10:16am - Men's 100m Butterfly
10:29am - Women's 50m Breaststroke
10:39am - Men's 50m Breaststroke
10:49am - Women's 50m Backstroke
11:02am - Men's 50m Backstroke

Finals Schedule:

6:07pm - Women's 400m Individual Medley
6:24pm - Men's 400m Individual Medley
6:37pm - Women's 100m Butterfly
6:47pm - Men's 100m Butterfly
6:55pm - Women's 50m Breaststroke
7:02pm - Men's 50m Breaststroke
7:10pm - Women's 50m Backstroke
7:18pm - Men's 50m Backstroke