The 2025 U.S. Swimming Championships, serving as the selection trials for the 2025 World Aquatics Championships in Singapore, took place from June 3 to 7 in Indianapolis, Indiana. Swimmers who achieve a FINA World Aquatics A-standard time in their respective events and rank within the top two will qualify for the World Championships. Additionally, in the 100m and 200m freestyle events, the top four athletes will automatically earn spots on the relay teams.The following diagram shows the list of male and female athletes selected by USA Swimming for the World Championships, along with their event entries.In the morning preliminaries, Jack Alexy set a new personal best with a time of 46.99, breaking both his own meet record and the U.S. Open record in the event. His swim was just 0.03 seconds off the Americas record of 46.96, set by Caeleb Dressel in 2019. Currently, Jack ranks sixth among the world’s fastest times in the men’s 100-meter freestyle, and he sits atop the global rankings for this season (2024-2025).
(Quoted from Swim Swam, as of June 8)In the men’s 100m freestyle final, all seven swimmers broke the 48-second barrier. Jack Alexy claimed his second career national 100m freestyle title with a dominant finish, clocking 47.17—just 0.3 seconds ahead of the rest. Patrick Sammon, who had already set a personal best of 47.87 earlier in the morning during the prelims, further improved upon that mark in the final, shaving off another 0.4 seconds to touch in at 47.47—and narrowly edged out Chris Guiliano, whose time of 47.49 was just 0.02 slower. Destin Lasco rounded out the top four with a solid performance at 47.58. Meanwhile, Jonny Kulow and Shaine Casas finished fifth and sixth, respectively, posting times of 47.82 and 47.92. Notably, this marked Shaine Casas’s first-ever swim under 48 seconds. Henry McFadden rounded out the top eight with a strong finish at 47.97. All eight finalists had already met the World Championships A-standard for the event (48.34).Top 8 Men's 100m Freestyle Swimmers by Split Times
The men's 200m freestyle race has seen fierce competition for a spot in the men's 4x200m freestyle relay at the 2025 World Championships in Singapore. Olympic bronze medalist Luke Hobson not only improved his personal best time by 0.01 second during the heats—swimming 1:44.78—but then went on to set an even faster mark in the final, clocking 1:43.73 to claim victory. This performance not only shattered Michael Phelps' 2008 U.S. Open and meet record of 1:44.10, but also made it the fifth-fastest time in the event's history. Meanwhile, Gabriel Jett secured the silver medal with a strong finish of 1:44.70, earning himself a direct berth in the 200m freestyle individual event. Rex Maurer rounded out the podium with a third-place finish in 1:45.13, narrowly edging out his previous personal best of 1:45.46 from the heats. Following closely behind was Henry McFadden, who touched in at 1:45.22. Notably, all eight swimmers who advanced to the final had already met the A-standard qualifying time for the World Championships in this event (1:46.70).
(Quoted from Swim Swam, as of June 8)Top eight finishers' split times in the men's 200m freestyleIn the 2024 Paris Olympics, swimmer Josh Matheny claimed victory with a time of 2:08.87, while AJ Pouch finished second in 2:09.31. Meanwhile, 17-year-old Gabe Nunziata made history by shaving off more than half a second from his previous best, clocking a stunning 2:09.71. This remarkable performance now ranks him second in the all-time world rankings for the 200-meter men's breaststroke among athletes aged 17 and 18. Looking ahead, Gabe is already positioning himself as a strong contender to claim the title at the 2025 World Junior Championships, alongside Japan’s Shin Ohashi. Notably, all four finalists in this event had already met the World Championships A-standard time of 2:10.32 before the final race.(Quoted from Swim Swam, as of June 8)Top four finishers' split times for the men's 200m breaststrokeJack Aikins topped the finals with a time of 1:54.25, besting his previous personal best of 1:54.78 set at the 2024 U.S. Olympic Trials, and clinched the gold medal. He now ranks No. 1 in the world this season (2024-2025) for this event. Keaton Jones, who will compete at the 2024 Paris Olympics, took home the silver medal, finishing in 1:54.85. Meanwhile, Daniel Diehl secured bronze with a time of 1:55.08, improving by a remarkable 0.96 seconds from his own personal best of 1:56.04. Notably, all five finalists met the World Championships A standard of 1:58.07.(Quoted from Swim Swam, as of June 8)Top five athletes' split times in the men's 200m backstrokeMen's 400m Individual Medley
This time at the U.S. Swimming Championships, Bobby Finke, the men’s 1500m freestyle champion, claimed victory in the men’s 400m individual medley with a stunning time of 4:07.46—a personal best that shaved more than two seconds off his previous mark of 4:09.55 set two years ago. Notably, this performance ranks as the second-fastest in the world this season (2024-2025), trailing only Maxime Grousset’s 4:07.11.
However, Bobby Finke now faces a scheduling dilemma as he prepares to compete in both the 1500m freestyle and the 400m individual medley. In a post-race interview, he declined to confirm whether he’ll drop one of the events, simply stating that his plans are still under consideration.
Carson Foster finished second with a time of 4:07.92, which currently places him third on the world rankings for the season (2024-2025). Rex Maurer rounded out the podium in third place, touching the wall at 4:09.65. Remarkably, all six swimmers who placed in the top six met the A-standard qualifying time for the upcoming World Championships in this event—4:17.48.
(Quoted from Swim Swam, as of June 8)Top six finishers' split times for the men's 400m individual medley
Shaine Casas claimed the gold medal with a time of 50.51, marking the second-fastest performance of his career and placing him fourth in the world rankings for this event this season (2024-2025). Meanwhile, 18-year-old Thomas Heilman clinched the silver in the 100m butterfly, clocking 50.70 to set a new personal best and break the U.S. national record for the 17-18 age group. He now sits sixth in the world rankings for this event this season (2024-2025). Notably, his swim ranks as the second-fastest ever by a male competitor aged 17 or 18 in the 200m butterfly, just 0.08 seconds off the world-record pace set by Hungary’s Kristóf Milák—the reigning Tokyo Olympic champion and world record holder in the event at the same age.
In the men’s 50m butterfly at the U.S. Swimming Championships, Dare Rose finished third with a time of 51.06, narrowly missing out on the podium but still delivering a performance that met the A-standard qualifying time (51.77) required for the World Championships.
(Quoted from Swim Swam, as of June 8)(Quoted from Swim Swam, as of June 8)Top five swimmers' split times in the men's 100m butterflyMen's 50-meter breaststroke
Campbell McKean edged out veteran Michael Andrew by a razor-thin margin of 0.02 seconds (26.90) to claim the gold medal, not only shaving off his personal best but also becoming the fifth-fastest American swimmer in history in this event. Michael Andrew finished second with a time of 26.92, while Brian Benzing rounded out the podium in third place at 27.40. Notably, both Campbell McKean and Michael Andrew met the A-standard qualifying time (27.33) required for the World Championships in this event.(Quoted from Swim Swam, as of June 8)Men's 50-meter backstroke
Quintin McCarty took the lead with a time of 24.34, finishing first in the race. Known on the NCAA circuit for his standout performances in short-distance freestyle events, Quintin McCarty has been steadily improving his backstroke this season—highlighted by a personal best of 24.45, which he achieved at the USA Swimming Pro Swim Series stop in Fort Lauderdale back in May. Shaine Casas claimed second place with a time of 24.44, while Will Modglin secured third with a career-best 24.76. Notably, all seven top finishers met the A-standard qualifying time (25.11) required to compete at this year’s World Championships in the event.Top seven athletes' results in the men's 50m backstrokeRex Maurer shattered the U.S. Open and meet record of 3:43.53, set by Larsen Jensen in 2008, with a time of 3:43.33. This remarkable performance marked a massive improvement for Maurer, shaving 3.19 seconds off his previous personal best—and now positions him as the third-fastest American ever in this event, behind only Larsen Jensen and Peter Vanderkaay. Additionally, his swim ranks second worldwide this season (2024-2025) in the event, just behind Lukas Märtens’ world-record time. Meanwhile, 15-year-old Luka Mijatovic finished second with a time of 3:45.71, breaking his own U.S. age-group record (for 15-16 year-olds) set earlier in the preliminaries. Ryan Erisman rounded out the podium in third place, clocking in at 3:46.01—a feat that not only earned him the win but also broke Larsen Jensen’s more than two-decade-old U.S. men’s 17-18 age-group record.(Quoted from Swim Swam, as of June 8)Men's 100-meter breaststroke
Campbell McKean made history at this competition by becoming the first swimmer to break the 1-minute mark, clocking a time of 58.96—shattering Michael Andrew's previous U.S. record for the 17-18 age group (59.82). McKean now ranks as the second-fastest performer in this event for the 2024-2025 season and ties for sixth fastest in U.S. history across all age groups. Notably, he also set the fastest-ever time in the 18-and-under category for this event.
Meanwhile, Josh Matheny, the reigning champion of the 200-meter breaststroke at the U.S. Swimming Championships, secured the silver medal with a strong finish of 59.18—a personal best that improved upon his previous mark by an impressive 0.02 seconds. Nate Germonprez rounded out the podium in third place, posting a time of 59.89, which marked the first time in his career he broke the 1-minute barrier.
Rounding out the top four was Michael Andrew, the current U.S. record holder in the event, who finished fourth with a time of 59.99.
(Quoted from Swim Swam, as of June 8)(Quoted from Swim Swam, as of June 8)(Quoted from Swim Swam, as of June 8)Men's 200m Individual Medley
In the men's 200m individual medley final, Shaine Casas claimed victory with a time of 1:55.73, closely followed by Carson Foster, who finished second in 1:55.76. Notably, both swimmers now rank first and second, respectively, in this year's (2024-2025) world rankings. Carson Foster’s performance was just 0.11 seconds slower than his personal best set last year during the Olympic trials. Trenton Julian rounded out the podium in third place (1:57.59). All six finalists had already met the event’s World Championships ‘A’ qualifying standard of 1:59.05 prior to the final.(Quoted from Swim Swam, as of June 8)Top six finishers' split times for the men's 200m individual medleyJack Alexy claimed victory with a time of 21.36, securing the top spot in this season's (2024-2025) world rankings. Santo Condorelli delivered a personal best of 21.68, earning him a spot on the U.S. team for the 2025 World Championships in Singapore—making him the third different national athlete to represent Team USA, after previously competing for Canada and Italy. His previous personal best of 21.83 was set at the Rio de Janeiro Olympics while representing Canada. Jonny Kulow followed closely behind with a new personal best of 21.73, also improving his previous mark. Quintin McCarty, the 50-meter backstroke champion, finished fourth in 21.79 seconds. Notably, all five finalists met the World Championships A standard of 22.05.(Quoted from Swim Swam, as of June 8)Top five athletes' results in the men's 50-meter freestyleTranslated from the Swimming Information Service official account
Image source: SwimSwam official website, USA Swimming official website
Data Collection | Wang Shuwen, Shen Shaoyi
Edited by | Lin Weiyi
Reviewed and Approved | The "Information Services for World Championship Preparation" Team
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