The U.S. Open Swimming Championships, or U.S. Open, is a championship meet organized by USA Swimming which is open to international teams/swimmers. It was first held in 1985, and was held annually in December through 2006. [1] Beginning in 2007, the meet's first-weekend-of-December timing was given over to the resurrected USA Short Course Nationals, and the U.S. Open moved to being held on an as-needed basis (generally in years where the USA championship that is swum is closed or partially closed to foreign swimmers). Since 2007, the meet has been held in early August, in years where the U.S. Nationals are not held in August.
The meet is traditionally a long course (50m) meet, although twice has been swum short course meters (25m): in 1996 and in 1998 (the latter where it immediately followed a World Aquatics Swimming World Cup meet).
| Year | Combined | Men's | Women's |
|---|---|---|---|
| 1985 | |||
| 1986 | |||
| 1987 | club: Mission Bay college: Florida Gators | club: Concord-Pleasant Hill college: USC Trojans | club: Mission Bay college: Florida Gators |
| 1988 | Little Rock Dolphins | ||
| 1989 | Longhorn Aquatics | Miami | Texas |
| 1990 | The Peddie School | The Peddie School | Mission Viejo Nadadores |
| 1991 | |||
| 1992 | |||
| 1993 | |||
| 1994 | University of Calgary Swim Club | ||
| 1995 | |||
| 1996 | Greenwood Memorial Swim Club | ||
| 1997 | |||
| 1998 | |||
| 1999 | club: Queensland Academy of Sport college: Cal Bears | Australian Institute of Sport | Queensland Academy of Sport |
| 2000 | |||
| 2001 | club: Bolles Sharks college: Florida Gators | club: Bolles Sharks college: Florida Gators | club: Irvine Aquazot college: SMU Mustangs |
| 2002 | club: Circle C Swimming college: Florida Gators | club: Circle C Swimming college: Minnesota Gophers | club: Circle C Swimming college: Florida Gators |
| 2003 | club: Irvine Novaquatics college: Florida Gators | club: Irvine Novaquatics college: Michigan Wolverines | club: Irvine Novaquatics college: Florida Gators |
| 2004 | club: Longhorn Aquatics college: Florida Gators | club: Club Wolverine college: Michigan Wolverines | |
| 2005 | club: North Baltimore Aquatic Club college: Auburn Tigers | club: Team Alberta college: Florida Gators | club: North Baltimore Aquatic Club college: Auburn Tigers |
| 2006 | club: Club Wolverine college: Auburn Tigers | club: Club Wolverine college: Michigan Wolverines | club: North Baltimore Aquatic Club college: Auburn Tigers |
| 2008 | Longhorn Aquatics | Club Wolverine | Athens Bulldog Swim Club |
| 2009 | Tucson Ford Dealers Aquatics | Tucson Ford Dealers Aquatics | Tucson Ford Dealers Aquatics |
| 2012 [3] | Australia | Australia | Great Britain |
| 2013 [4] | Australia | Stanford Swimming | Australia |
| 2016 [5] | Australia | Australia | Aggie Swim Club |
| 2017 [6] | Texas A&M | California Aquatics | Texas A&M |
| 2019 [7] | Athens Bulldog Swim Club | University of Florida | Nation's Capital Swim Club |
| Event | Time | Name | Club | Date | Location | Ref | |
|---|---|---|---|---|---|---|---|
| 50m freestyle | 21.57 | Chris Guiliano | Texas Longhorn Aquatics | 4 December 2025 | Austin, United States | [8] | |
| 100m freestyle | 47.40 | Jack Alexy | California Aquatics | 6 December 2025 | Austin, United States | [9] | |
| 200m freestyle | 1:44.49 | Luke Hobson | New York Athletic Club | 5 December 2025 | Austin, United States | [10] | |
| 400m freestyle | 3:44.70 | Leon Marchand | Texas Longhorn Aquatics | 4 December 2025 | Austin, United States | [11] | |
| 800m freestyle | 7:47.27 | Chad La Tourette | Mission Viejo Nadadores | 8 August 2009 | Federal Way, United States | [12] | |
| 1500m freestyle | 14:55.46 | Damien Joly | 2 August 2017 | East Meadow, United States | [13] | ||
| 100m backstroke | 52.51 | Nick Thoman | - | 7 August 2009 | Federal Way, United States | [12] | |
| 200m backstroke | 1:54.21 | Hubert Kos | Texas Longhorn Aquatics | 6 December 2025 | Austin, United States | [14] | |
| 100m breaststroke | 59.28 | h | Andrew Wilson | Athens Bulldog Swim Club | 6 December 2019 | Atlanta, United States | [15] |
| 200m breaststroke | 2:09.49 | Matthew Fallon | University of Pennsylvania | 2 December 2023 | Greensboro, United States | [16] | |
| 100m butterfly | 50.24 | Shaine Casas | Texas Longhorn Aquatics | 5 December 2025 | Austin, United States | [17] | |
| 200m butterfly | 1:52.57 | Leon Marchand | Texas Longhorn Aquatics | 6 December 2025 | Austin, United States | [18] | |
| 200m individual medley | 1:55.50 | Hubert Kos | Texas Longhorn Aquatics | 4 December 2025 | Austin, United States | [19] | |
| 400m individual medley | 4:07.02 | Carson Foster | UN-MR | 5 December 2025 | Austin, United States | [20] | |
| 4×100m freestyle relay | 3:16.87 |
| 3 August 2016 | Minneapolis, United States | [21] | ||
| 4×200m freestyle relay | 7:18.82 |
| Tucson Ford Dealers Aquatics | 6 August 2009 | Federal Way, United States | [12] | |
| 4×100m medley relay | 3:36.55 |
| 2 August 2008 | Minneapolis, United States | [22] |
| Event | Time | Name | Club | Date | Location | Ref | |
|---|---|---|---|---|---|---|---|
| 50m freestyle | 24.20 | Kate Douglass | New York Aquatic Club | 4 December 2025 | Austin, United States | [23] | |
| 100m freestyle | 52.94 | Siobhan Haughey | 2 December 2023 | Greensboro, United States | [24] | ||
| 200m freestyle | 1:54.20 | Siobhan Haughey | 1 December 2023 | Greensboro, United States | [25] | ||
| 400m freestyle | 3:55.37 | Summer McIntosh | Texas Longhorn Aquatics | 4 December 2025 | Austin, United States | [26] | |
| 800m freestyle | 8:12.81 | Katie Ledecky | University of Florida | 1 December 2021 | Greensboro, United States | [27] [28] | |
| 1500m freestyle | 15:35.98 | Katie Ledecky | Nation's Capital Swim Club | 7 December 2019 | Atlanta, United States | [29] | |
| 100m backstroke | 57.95 | Regan Smith | Arizona State Sun Devils | 2 December 2022 | Greensboro, United States | [30] | |
| 200m backstroke | 2:04.27 | Regan Smith | Arizona State Sun Devils | 2 December 2023 | Greensboro, United States | [31] | |
| 100m breaststroke | 1:04.45 | Jessica Hardy | Trojan Swimming Club | 7 August 2009 | Federal Way, United States | [12] | |
| 200m breaststroke | 2:20.86 | Kate Douglass | New York Athletic Club | 6 December 2025 | Austin, United States | [32] | |
| 100m butterfly | 55.60 | Gretchen Walsh | New York Athletic Club | 5 December 2025 | Austin, United States | [33] | |
| 200m butterfly | 2:02.62 | Summer McIntosh | Texas Longhorn Aquatics | 6 December 2025 | Austin, United States | [34] | |
| 200m individual medley | 2:07.85 | Kate Douglass | New York Athletic Club | 4 December 2025 | Austin, United States | [35] | |
| 400m individual medley | 4:28.61 | Summer McIntosh | Sarasota Sharks | 2 December 2022 | Greensboro, United States | [36] | |
| 4×100m freestyle relay | 3:42.38 |
| 30 July 2013 | Irvine, United States | [37] | ||
| 4×200m freestyle relay | 8:00.84 |
| Longhorn Aquatics | 1 August 2013 | Irvine, United States | [38] | |
| 4×100m medley relay | 4:04.64 |
| 2 August 2013 | Irvine, United States | [39] |