Anna Moesch swam an American record in the 100-meter freestyle in London and entered the ranks of the fastest in history
American swimmer Anna Moesch produced one of the most notable results of the season in the women's freestyle sprint. At the AP Race London International 2026 competition at the London Aquatics Centre, she swam the 100-meter freestyle in 51.94 seconds, setting a new American record and, according to a report by the University of Virginia and the specialized portal SwimSwam, becoming the second-fastest swimmer of all time in the event in a long-course pool. The result was achieved on May 25, 2026, the final day of a competition that brought together swimmers from more than 40 nationalities.
Moesch won the final convincingly ahead of Barbora Janickova of Czechia, who swam to silver in 54.06, while Britain's Theodora Taylor won bronze in 54.21. In addition to the American record, the time of 51.94 was also a new meet record. According to data published by SwimSwam, the previous American record was 52.04, set by Simone Manuel at the 2019 World Championships. Moesch thus moved the boundary of American swimming by one tenth of a second, but the significance of the result is much greater than the mere difference compared with the old record.
In an event in which every hundredth counts, swimming under 52 seconds carries special weight. The world record is still held by Sweden's Sarah Sjöström, who swam 51.71 at the 2017 World Championships in Budapest. In London, Moesch finished 23 hundredths behind that mark. According to Sjöström's official World Aquatics profile, her 2017 record still stands as the fastest time in the history of the women's 100-meter freestyle in a 50-meter pool.
A major leap compared with her personal best
What is especially striking is how much faster Anna Moesch's result in London was than her earlier long-course performances. According to the swimmer's profile on the World Aquatics website, at the beginning of May 2026 at the Speedo Fort Lauderdale Open, Moesch had a personal best of 53.25 in the 100-meter freestyle in a 50-meter pool. Only a few weeks later in London, she swam 51.94, meaning she lowered her personal best by 1.31 seconds.
Such progress in the 100-meter freestyle is rare at the highest level, especially because it is an event in which leading swimmers often build improvement over years through very small gains. Swimming World Magazine, in its analysis of the London race, emphasizes precisely the scale of that drop, comparing it with some of the exceptional swimming breakthroughs from earlier periods. Although individual comparisons do not change the result, they show how strongly the 51.94 swim resonated in the international swimming community.
According to the published comparison of splits, Moesch completed the first 50 meters in 25.18, slower than Simone Manuel's split in the old American record and slower than Sarah Sjöström's split in the world record. She made the difference in the second part of the race, which she finished in 26.76. SwimSwam states that Moesch swam the final 50 meters faster than Manuel did in the American record and faster than Sjöström's closing split in the world record. This points to an exceptionally strong finish and a very efficient distribution of power in the closing length.
London as a turning point in the season
AP Race London International 2026 was held from May 23 to 25 at the London Aquatics Centre, the pool built for the 2012 Olympic Games. According to the University of Virginia's announcement, the competition was recognized by World Aquatics and sanctioned through Aquatics GB, and performances could be used to achieve A and B standards for international competitions. The University of Virginia also stated that more than 850 competitors from more than 40 nationalities took part in London.
For Moesch, the London appearance was more than one record. Over three days, she won three individual gold medals and two relay gold medals, according to the official Virginia Cavaliers release. In addition to winning the 100-meter freestyle, she also won the 50-meter freestyle in 24.27 and the 200-meter freestyle in 1:55.81. In the relays, she was part of the victorious American teams in the 4x100-meter freestyle and 4x100-meter medley, closing the London meet as one of its most successful competitors.
According to the same source, Moesch also finished at the top of the Aqua Points standings with 986 points and was named the AP Race champion of the competition. That ranking is based on the most valuable individual result by a male or female swimmer according to World Aquatics scoring, and awards were given to the best performers in the combined men's and women's competition. Behind Moesch, according to the University of Virginia's announcement, were Angharad Evans with 954 points and Johannes Liebmann with 950 points.
A record that changes the American hierarchy
American women's swimming in the 100-meter freestyle has had several prominent names in recent years, including Simone Manuel, Torri Huske and Gretchen Walsh, but Anna Moesch's result brings a new benchmark in the long-course pool. Manuel swam the record of 52.04 in 2019, during a period when she was one of the leading names in the world sprint. In London, Moesch became the first American woman officially to go under 52 seconds in the event.
The time of 51.94 also places her in a global context that has until now been extremely narrow. According to available reports after the final in London, only Sarah Sjöström has swum faster in the history of the 100-meter freestyle in a long-course pool. Such a placement means not only a national record, but also entry into the discussion about the highest level of the women's sprint ahead of the next major international competitions. For a swimmer who was still building her international profile in individual events before London, the result represents a sudden breakthrough.
It is important to note, however, that the London result does not automatically change national-team rosters for all upcoming competitions. SwimSwam reported that Moesch is not on the American roster for the 2026 Pan Pacific Championships, because under earlier selection rules, athletes from that roster were not available for the official American delegation in London. But a time of 51.94 is difficult to ignore in broader planning for American relays and individual starts, especially when viewed through the Olympic cycle toward Los Angeles 2028.
A strong performance by the entire Virginia program
Moesch competes for the University of Virginia, one of the most successful American collegiate swimming programs in recent years. In London, she was not the only member of the program competing; her teammates David King and Madi Mintenko also took part. According to the Virginia Cavaliers release, King won gold in the 200-meter backstroke with a time of 1:58.36 and bronze in the 4x100-meter freestyle relay, while Mintenko won bronze in the 200-meter freestyle and gold in the 4x100-meter freestyle relay.
For the University of Virginia, Anna Moesch's result has additional value because it confirms the transfer of success from the American collegiate system into the long-course pool and international competition. American NCAA competitions are mostly held in yards, which requires swimmers to use a different turning technique and race rhythm than swimming in a 50-meter pool. The results in London show that Moesch managed to transfer her current form into the Olympic pool format as well, which is crucial for international standards.
The University of Virginia's announcement states that assistant coach Margaret Zagrobelny was part of the coaching staff of the 16-swimmer American delegation. An earlier announcement of the American roster for London stated that USA Swimming selected eight female and eight male swimmers, with a limit on the number of national-team members and special rules connected with the Pan Pacific Championships. Moesch was among the main names on the women's side of the roster even before the start of the competition, but her result in the 100-meter freestyle final surpassed even the most optimistic expectations.
From relay national-team member to candidate for the top of the sprint
Moesch already had international experience before the London record. According to her World Aquatics profile and reports by swimming media, she represented the United States at the 2025 World Championships in Singapore, where she swam in the heats of the American women's 4x100 and 4x200-meter freestyle relays. Such appearances are often an important step for young swimmers because they provide entry into the national-team system, but they do not always carry the same status as individual final results.
The 51.94 from London changes the perception of her role. Instead of being only a relay option, Moesch now appears as a swimmer with a time competitive for world finals and medals. In the 100-meter freestyle, the differences between finalists at the biggest competitions are usually very small, and going under 52 seconds almost always signals a fight for the highest placing. Still, consistency will be decisive: one extraordinary result must be confirmed through the next competitions, especially at championships with higher pressure and a denser schedule.
Her London weekend also showed her range in freestyle. Victories in the 50, 100 and 200-meter freestyle are rare at international meets because they require a combination of explosiveness, speed endurance and the ability to control pace. The time of 24.27 in the 50-meter freestyle, according to SwimSwam, ranked her among the fastest American women in that event, while 1:55.81 in the 200-meter freestyle, according to the University of Virginia, was a program record and one of the best American times of the season. Such a range is especially important for relay combinations in the 4x100 and 4x200-meter freestyle.
The broader significance of the result ahead of major competitions
The women's 100-meter freestyle has been exceptionally competitive in recent years. Sarah Sjöström remains the world-record holder and the Olympic champion from Paris 2024, while swimmers from the United States, Australia, Hong Kong, the Netherlands and other strong programs are regularly near the top at major competitions. In such an environment, the 51.94 result from London immediately becomes an important reference point for the season, even if it was achieved at a meet that was neither a world championship nor an Olympic competition.
For the American national team, it is a result with potentially major consequences. In the 4x100-meter freestyle, the individual times of leading swimmers directly affect relay-team selection, the distribution of heats and finals, and strategy by legs. A swimmer who can go under 52 seconds from a flat start is especially valuable because relay exchanges often allow even faster splits. If Moesch confirms the level she showed in London, she could become an important part of American plans in both the individual race and the relays.
At the same time, caution is necessary. Results from in-season meets, however impressive, do not automatically guarantee the same outcome at a championship. Form, taper, travel, competition, the pressure of finals and selection systems can significantly affect the final placing. But the fact that Moesch swam the second-fastest time in history in London changes the starting point of every discussion about her potential. Since May 25, 2026, she is no longer only a talented rising American swimmer, but the owner of the American record and one of the fastest sprinters the event has ever seen.
Sources:
- Virginia Cavaliers / University of Virginia – official release on the performance of Anna Moesch and members of the Virginia program at AP Race London International 2026 (link)
- SwimSwam – report on the 100-meter freestyle final, the American record of 51.94 and comparison with previous records (link)
- World Aquatics – official profile of Anna Moesch with results and personal bests in long-course and short-course pools (link)
- World Aquatics – official profile of Sarah Sjöström with the listed world record of 51.71 in the 100-meter freestyle in a long-course pool (link)
- SwimSwam – preview of the American roster for AP Race London International 2026 and the context of USA Swimming selection (link)
- Swimming World Magazine – analysis of Anna Moesch's exceptional improvement and the significance of the 51.94 result in the historical context of sprinting (link)