On one of the busiest nights of swimming at Lucas Oil Stadium, Olympic spots were clinched in five events on Night 3 of the 2024 U.S. Olympic Swimming Team Trials presented by Lilly.

A full slate of finals included the women's 400m IM, men's 200m freestyle, men's 100m backstroke, women's 100m breaststroke and women's 200m freestyle.

Monday night saw an American record fall, a backstroke legend qualify for his third Olympic team, a hometown favorite surge to victory and the greatest female swimmer of all time add another Olympic event to her growing Paris schedule.

Night 3 also saw the first U.S. relay teams come to fruition in the men's and women's 4x200m relays.

See below for event-by-event results, recaps and highlights from Indy.

Women’s 400m Individual Medley Final

Katie Grimes entered Trials as one of the very few athletes already guaranteed a place in Paris; she qualified for the 10K open water swimming event last year. Now, she has her spot in the Paris pool as well.

Grimes won the women's 400m IM final in 4:35.00, separating late from Emma Weyant to win by 0.56.

Grimes, then 15, was the youngest American swimmer at the Tokyo Olympics, where she swam the 800m freestyle. In the time since, she's emerged as one of the most versatile swimmers in the world and took silver in both the 400m IM and 1500m freestyle at the 2022 World Swimming Championships.

Weyant, the 400m IM silver medalist in Tokyo, is nearly assured of a return to the Games thanks to her second-place finish in the first final of the night.

1) *Katie Grimes | 4:35.00
2) **Emma Weyant | 4:35.56
3) Lilla Bognar | 4:37.86
4) Leah Smith | 4:39.87
5) Leah Hayes | 4:41.32
6) Lucy Bell | 4:41.40
7) Zoe Dixon | 4:42.01
8) Audrey Derivaux | 4:46.89
*Olympic place guaranteed
**Olympic place likely

Men’s 200m Freestyle Final

With legendary and recently-retired University of Texas swim coach Eddie Reese looking on, Longhorn Luke Hobson emerged from a wide-open 200m free final to claim not only a spot in the same event in Paris, but also a spot on Team USA's 4x200m free relay squad.

"It's amazing," Hobson said of clinching his first Olympic team spot. "Swimming in front of this amazing crowd is one of the coolest feelings ever, and I couldn't be happier."

Notre Dame's Chris Guiliano surged late from the outside to claim second place and a potential spot alongside Hobson in both the individual 200m free and the relay.

Indiana native Drew Kibler and Tokyo 400m free bronze medalist Kieran Smith finished third and fourth, respectively. Both are locked in as members of the relay team only.

Brooks Curry and Blake Pieroni, the fifth and sixth place finishers, could also be chosen for relay duty depending on team size constraints.

1) *Luke Hobson | 1:44.89
2) *Chris Guiliano | 1:45.38
3) *Drew Kibler | 1:45.60
4) *Kieran Smith | 1:45.61
5) **Brooks Curry | 1:45.89
6) **Blake Pieroni | 1:46.09
7) Jake Mitchell | 1:46.48
8) Aaron Shackell | 1:47.37
*Olympic place guaranteed
**Olympic place possible

Women’s 100m Backstroke Semifinals

Regan Smith lowered her own American record and put the world record on notice in the second 100m backstroke semifinal, touching in 57.47 seconds to set the top time ahead of Tuesday night's final.

If she can shave a tenth-and-a-half off her time in the final, she'll not only make Team USA, but also reclaim the world record she first set in 2019. In 2023, Australia's Kaylee McKeown lowered the mark to 57.33 seconds.

Smith will be joined in the final by Katharine Berkoff, who won four medals at the 2023 World Championships.

1) Regan Smith | 57.47
2) Katharine Berkoff | 57.83
3) Josephine Fuller | 58.79
3) Kennedy Noble | 58.79
5) Rhyan White | 59.08
5) Claire Curzan | 59.08
7) Leah Shackley | 59.25
8) Phoebe Bacon | 59.33

Men’s 100m Backstroke Final

Four-time Olympic gold medalist Ryan Murphy will swim at his third Olympics, and be a favorite for more gold when he gets there.

Murphy, the Ponte Vedra Beach, Florida native, won the final in 52.22 seconds, a half-second ahead of 2024 world champion Hunter Armstrong, who likely will head to his second Games this summer after finishing second behind Murphy. Armstrong nearly missed out on the final after slipping at the start of his semifinal heat Sunday night.

After winning gold in the 100m backstroke in Rio, Murphy managed a bronze medal in Tokyo, finishing behind a pair of Russian swimmers. With Russia not participating in the Paris Games thanks to the ongoing war in Ukraine, Murphy now has a clear path back to the top of the podium.

The 28-year-old will also be a valuable veteran presence on the U.S. Olympic swimming team.

1) *Ryan Murphy | 52.22
2) **Hunter Armstrong | 52.72
3) Jack Aikins | 52.74
4) Adam Chaney | 53.44
5) Justin Ress | 53.57
6) Will Modglin | 53.69
7) Jack Wilkening | 53.79
8) Tommy Janton | 53.87
*Olympic place guaranteed
**Olympic place likely

Women’s 100m Breaststroke Final

There won't be a more popular win in Indy all week than Indiana's own Lilly King reclaiming her place atop all Americans in the 100m breaststroke.

In front of more than 20,000 home fans, King won the final in 1:05.43, booking her spot on her third Olympic team.

"We love swimming here. This is what we do. We're a swimming state and we're really proud of that," King said.

University of Virginia junior Emma Weber beat out defending Olympic gold medalist Lydia Jacoby for the presumptive second Olympic spot by 0.27-seconds.

1) *Lilly King | 1:05.43
2) **Emma Weber | 1:06.10
3) Lydia Jacoby | 1:06.37
4) Kaitlyn Dobler | 1:06.77
5) Kaelyn Gridley | 1:07.03
6) Alex Walsh | 1:07.38
7) McKenzie Siroky | 1:07.71
8) Ella Nelson | 1:07.83
*Olympic place guaranteed
**Olympic place likely

Women’s 200m Freestyle Final

It may be her "weakest" event, but Katie Ledecky is still in a class of her own among Americans in the 200m freestyle. The seven-time Olympic gold medalist (including in this event at the Rio Games) potentially added two more events to her Paris docket by winning the Trials final in 1:55.22, nearly a full second over Claire Weinstein in second place.

It's still unclear if Ledecky will in fact choose to contest the individual 200m free in Paris, but she will certainly lead the U.S. 4x200m freestyle relay team looking for a return to the Olympic podium after winning gold in Rio and silver in Tokyo.

She'll be joined on that relay team by Weinstein, Paige Madden and Erin Gemmell, as well as Anna Peplowski and Alex Shackell if team size constraints allow.

Four-time Olympic medalist Simone Manuel narrowly missed a chance to be chosen for the relay, as did Katie Grimes swimming for the second time in the session after winning the 400m IM earlier in the evening.

1) *Katie Ledecky | 1:55.22
2) *Claire Weinstein | 1:56.18
3) *Paige Madden | 1:56.36
4) *Erin Gemmell | 1:56.75
5) **Anna Peplowski | 1:57.04
6) **Alex Shackell | 1:57.05
7) Simone Manuel | 1:57.13
8) Katie Grimes | 1:57.33
*Olympic place guaranteed
**Olympic place likely