List of United States records in swimming

There are two different kinds of swimming records in the United States and certified by USA Swimming:

American record: the fastest time by an American swimmer.^[a]
U.S. Open record: the fastest time within the United States.^[b]

Note: The American records should not be confused with the Americas records, which are the fastest times ever swum by a swimmer representing any country of the Americas.

An asterisk (*) indicates that this record has been achieved since the latest USA Swimming records publication. A plus (+) indicates that this record also is the current world record.

Long course (50 m)

Men

Event	American Record (50 m)	U.S. Open Record (50 m)
freestyle
50 free	21.04 Caeleb Dressel (USA) 2019 World Championships July 27, 2019 / Gwangju, South Korea 21.04^[1] Caeleb Dressel (Gator Swim Club) 2020 US Olympic Trials June 20, 2021 / Omaha, Nebraska	21.04^[2] Caeleb Dressel (Gator Swim Club) 2020 US Olympic Trials June 20, 2021 / Omaha, Nebraska
100 free	46.96 Caeleb Dressel (USA) 2019 World Championships July 25, 2019 / Gwangju, South Korea	46.99 Jack Alexy (California Aquatics) 2025 USA Championships (h) June 3, 2025 / Indianapolis, Indiana
200 free	1:42.96^[3] Michael Phelps (USA) 2008 Olympic Games August 12, 2008 / Beijing, China	1:43.73 Luke Hobson (Longhorn Aquatics) 2025 USA Championships June 4, 2025 / Indianapolis, Indiana
400 free	3:42.78^[4] Larsen Jensen (USA) 2008 Olympic Games August 10, 2008 / Beijing, China	3:43.33 Rex Maurer (Longhorn Aquatics) 2025 USA Championships June 6, 2025 / Indianapolis, Indiana
800 free	7:38.67^[5] Bobby Finke (USA) 2023 World Championships July 26, 2023 / Fukuoka, Japan	7:40.34 Bobby Finke (Florida) 2023 USA Nationals July 1, 2023 / Indianapolis, Indiana
1500 free	14:30.67⁺ Bobby Finke (USA) 2024 Olympic Games August 4, 2024 / Paris, France	14:40.28 Bobby Finke (Florida) 2024 United States Olympic trials June 23, 2024 / Indianapolis, Indiana
backstroke	American Record (50 m)	U.S. Open Record (50 m)
50 back	23.71^[6] Hunter Armstrong (Ohio State) 2022 USA International Team Trials April 28, 2022 / Greensboro, North Carolina	same
100 back	51.85 Ryan Murphy (USA) 2016 Olympic Games (r) August 13, 2016 / Rio de Janeiro, Brazil	51.94 Aaron Peirsol (Longhorn Aquatics) 2009 USA Nationals July 8, 2009 / Indianapolis
200 back	1:51.92⁺ Aaron Peirsol (USA) 2009 World Championships July 31, 2009 / Rome, Italy	1:53.08 Aaron Peirsol (Longhorn Aquatics) 2009 USA Nationals July 11, 2009 / Indianapolis
breaststroke	American Record (50 m)	U.S. Open Record (50 m)
50 breast	26.45 Nic Fink (USA) 2022 World Championships June 21, 2022 / Budapest, Hungary	26.52^[7] Michael Andrew (MA Swim Academy) 2022 USA International Team Trials April 28, 2022 / Greensboro, North Carolina
100 breast	58.14^[8] Michael Andrew (Race Pace Club) 2020 US Olympic Trials (sf) June 13, 2021 / Omaha, Nebraska	same
200 breast	2:06.54^[9] Matthew Fallon (University of Pennsylvania) 2024 US Olympic Trials June 19, 2024 / Indianapolis, Indiana	same
butterfly	American Record (50 m)	U.S. Open Record (50 m)
50 fly	22.35 Caeleb Dressel (USA) 2019 World Championships July 22, 2019 / Gwangju, South Korea	22.84 Caeleb Dressel (Gator Swim Club) 2022 USA International Team Trials April 27, 2022 / Greensboro, North Carolina
100 fly	49.45⁺ Caeleb Dressel (USA) 2020 Olympic Games July 31, 2021 / Tokyo, Japan	49.76^[10] Caeleb Dressel (Gator Swim Club) 2020 US Olympic Trials (sf) June 18, 2021 / Omaha, Nebraska
200 fly	1:51.51 Michael Phelps (USA) 2009 World Championships July 29, 2009 / Rome, Italy	1:52.20 Michael Phelps (Club Wolverine) 2008 US Olympic Trials July 2, 2008 / Omaha, Nebraska
individual medley	American Record (50 m)	U.S. Open Record (50 m)
200 IM	1:54.00⁺ Ryan Lochte (USA) 2011 World Championships July 28, 2011 / Shanghai, China	1:54.56^[e] Ryan Lochte (Daytona Beach) 2009 USA Nationals July 10, 2009 / Indianapolis
400 IM	4:03.84 Michael Phelps (USA) 2008 Olympic Games August 10, 2008 / Beijing, China	4:05.25 Michael Phelps (Club Wolverine) 2008 US Olympic Trials June 29, 2008 / Omaha, Nebraska
relays	American Record (50 m)	U.S. Open Record (50 m)
400 free relay	3:08.24⁺ USA (M. Phelps-47.51, G. Weber-Gale-47.02, C. Jones-47.65, J. Lezak-46.06) 2008 Olympic Games August 11, 2008 / Beijing, China	3:11.74 USA (M. Phelps-48.13, R. Lochte-47.98, J. Lezak-48.12, N. Adrian-47.51) Pan Pacific Championships August 20, 2010 / Irvine, California
800 free relay	6:58.55⁺ USA (M. Phelps-1:44.49, R. Berens-1:44.13, D. Walters-1:45.47, R. Lochte-1:44.46) 2009 World Championships July 31, 2009 / Rome, Italy	7:03.84 USA (M. Phelps-1:45.62, P. Vanderkaay-1:46.46, R. Berens-1:46.49, R. Lochte-1:45.27) Pan Pacific Championships August 20, 2010 / Irvine, California
400 medley relay	3:26.78⁺ USA (R. Murphy-52.31, M. Andrew-58.49, C. Dressel-49.03, Z. Apple-46.95 2020 Olympic Games August 1, 2021 / Tokyo, Japan	3:32.48^[d] USA (A. Peirsol-53.91, M. Gangloff-1:00.45, M. Phelps-50.58, N. Adrian-47.54) Pan Pacific Championships August 22, 2010 / Irvine, California

Women

Event	American Record (50 m)	U.S. Open Record (50 m)
freestyle
50 free	23.91^[11] Kate Douglass (USA) 2024 World Championships February 18, 2024 / Doha, Qatar 23.91 Gretchen Walsh (New York Athletic Club) 2025 USA Championships June 7, 2025 / Indianapolis, Indiana	23.91 Gretchen Walsh (New York Athletic Club) 2025 USA Championships June 7, 2025 / Indianapolis, Indiana
100 free	52.04 Simone Manuel (USA) 2019 World Championships July 26, 2019 / Gwangju, South Korea	52.43 Torri Huske (Arlington Aquatic Club) 2025 USA Championships June 3, 2025 / Indianapolis, Indiana
200 free	1:53.61^[12] Allison Schmitt (USA) 2012 Olympic Games July 31, 2012 / London, UK	1:54.13 Summer McIntosh (Canada) 2023 TYR Pro Swim Series March 3, 2023 / Fort Lauderdale, Florida
400 free	3:56.46 Katie Ledecky (USA) 2016 Olympic Games August 7, 2016 / Rio de Janeiro, Brazil	3:56.81 Katie Ledecky (Florida) 2025 TYR Pro Swim Series May 1, 2025 / Fort Lauderdale, Florida
800 free	8:04.12⁺ Katie Ledecky (Gator Swim Club) 2025 TYR Pro Swim Series May 3, 2025 / Fort Lauderdale, Florida	same
1500 free	15:20.48⁺ Katie Ledecky (USA) 2018 TYR Pro Swim Series May 16, 2018 / Indianapolis, Indiana	same
backstroke	American Record (50 m)	U.S. Open Record (50 m)
50 back	26.97 Katharine Berkoff (NC State Wolfpack) 2025 USA Championships June 5, 2025 / Indianapolis, Indiana	same
100 back	57.13⁺ Regan Smith (Longhorn Aquatics) 2024 US Olympic Trials June 19, 2024 / Indianapolis, Indiana	same
200 back	2:03.35 Regan Smith (USA) 2019 World Championships (sf) July 26, 2019 / Gwangju, South Korea	2:03.80 Regan Smith (Sun Devil) 2023 Phillips 66 National Championships June 28, 2023 / Indianapolis, Indiana
breaststroke	American Record (50 m)	U.S. Open Record (50 m)
50 breast	29.40 Lilly King (USA) 2017 World Championships July 30, 2017 / Budapest, Hungary	29.62 Lilly King (Indiana University) 2018 TYR Pro Swim Series June 10, 2018 / Santa Clara, California
100 breast	1:04.13⁺ Lilly King (USA) 2017 World Championships July 25, 2017 / Budapest, Hungary	1:04.45 Jessica Hardy (Trojan Swim Club) 2009 U.S. Open Championships August 7, 2009 / Federal Way, Washington
200 breast	2:19.24 Kate Douglass (USA) 2024 Olympic Games August 1, 2024 / Paris, France	2:19.30 Kate Douglass (New York Aquatic Club) 2024 TYR Pro Swim Series January 13, 2024 / Knoxville, Tennessee
butterfly	American Record (50 m)	U.S. Open Record (50 m)
50 fly	24.66 Gretchen Walsh (New York Athletic Club) 2025 USA Championships June 4, 2025 / Indianapolis, Indiana	same
100 fly	54.60⁺ Gretchen Walsh (New York Athletic Club) 2025 TYR Pro Swim Series May 3, 2025 / Fort Lauderdale	same
200 fly	2:03.84 Regan Smith (USA) 2024 Olympic Games August 1, 2024 / Paris, France	2:03.87 Regan Smith (Sun Devil) 2023 Sun Devil Open June 4, 2023 / Tempe, Arizona
individual medley	American Record (50 m)	U.S. Open Record (50 m)
200 IM	2:06.15 Ariana Kukors (USA) 2009 World Championships July 27, 2009 / Rome, Italy	2:06.79 Kate Douglass (New York Aquatic Club) 2024 United States Olympic trials June 22, 2024 / Indianapolis, Indiana
400 IM	4:31.12 Katie Hoff (North Baltimore) 2008 US Olympic Trials June 29, 2008 / Omaha, Nebraska	4:26.98 Summer McIntosh (Canada) 2025 TYR Pro Swim Series March 7, 2025 / Westmont, Illinois
relays	American Record (50 m)	U.S. Open Record (50 m)
400 free relay	3:30.20 USA (K. Douglass-52.98, G. Walsh-52.55, T. Huske-52.06, S. Manuel-52.61) 2024 Olympic Games July 27, 2024 / Paris, France	3:35.11 USA (N. Coughlin-54.25, J. Hardy-53.43, A. Weir-53.85, D. Vollmer-53.58) 2010 Pan Pacs August 21, 2010 / Irvine, California
800 free relay	7:40.73 USA (A. Schmitt-1:56.34, P. Madden-1:55.25, K. McLaughlin-1:55.38, K. Ledecky-1:53.76) 2020 Olympic Games August 1, 2021 / Tokyo, Japan	7:51.21 USA (D. Vollmer-1:58.05, M. Scroggy-1:57.89, K. Hoff-1:58.70, A. Schmitt-1:56.57) 2010 Pan Pacs August 20, 2010 / Irvine, California
400 medley relay	3:49.63⁺ USA (R. Smith-57.28, L. King-1:04.81, G. Walsh-55.03, T. Huske-52.42) 2024 Olympic Games August 4, 2024 / Paris, France	3:55.23 USA (N. Coughlin-59.85, R.Soni-1:05.35, D. Vollmer-56.91, J. Hardy-53.12) 2010 Pan Pacs August 22, 2010 / Irvine, California

Short course meters (25 m)

Men

Event	American Record (25 m)	U.S. Open Record (25 m)
freestyle
50 free	20.16 Caeleb Dressel (Cali Condors) 2020 International Swimming League November 21, 2020 / Budapest, Hungary	20.24 Caeleb Dressel (Cali Condors) 2019 International Swimming League December 20, 2019 / Las Vegas, Nevada
100 free	45.05 Jack Alexy (USA) 2024 World Championships December 10, 2024 / Budapest, Hungary	45.22 Caeleb Dressel (Cali Condors) 2019 International Swimming League December 21, 2019 / Las Vegas, Nevada
200 free	1:38.61⁺ Luke Hobson (USA) 2024 World Championships December 15, 2024 / Budapest, Hungary	1:41.58 Alexander Graham (London Roar) 2019 International Swimming League October 19, 2019 / Lewisville, Texas
400 free	3:34.38 Kieran Smith (USA) 2022 World Championships December 15, 2022 / Melbourne, AUS	3:35.99 Kieran Smith (USA) 2022 FINA Swimming World Cup November 3, 2022 / Indianapolis, United States
800 free	7:30.41 David Johnston (USA) 2022 Australian SC Championships August 24, 2022 / Sydney, Australia	7:36.24 Pál Joensen (Team Europe) 2011 Duel in the Pool December 17, 2011 / Atlanta
1500 free	14:19.29 Connor Jaeger (USA) 2015 Duel in the Pool December 12, 2015 / Indianapolis, United States	same
backstroke	American Record (25 m)	U.S. Open Record (25 m)
50 back	22.53^[13] Ryan Murphy (LA Current) 2021 International Swimming League November 25, 2021 / Eindhoven, Netherlands	22.72 Dylan Carter (Trinidad and Tobago) 2022 FINA Swimming World Cup November 4, 2022 / Indianapolis, United States
100 back	48.33⁺ Coleman Stewart (Cali Condors) 2021 International Swimming League August 29, 2021 / Naples, Italy	48.92 Matt Grevers (USA) 2015 Duel in the Pool December 12, 2015 / Indianapolis, United States
200 back	1:46.68 Ryan Lochte (USA) 2010 Short Course Worlds December 19, 2010 / Dubai, UAE	1:48.40 Shaine Casas (USA) 2022 FINA Swimming World Cup November 3, 2022 / Indianapolis, United States
breaststroke	American Record (25 m)	U.S. Open Record (25 m)
50 breast	25.38 Nic Fink (USA) 2022 World Championships December 18, 2022 / Melbourne, AUS	25.75 Nic Fink (Cali Condors) 2019 International Swimming League December 20, 2019 / Las Vegas, Nevada
100 breast	55.56^[14] Nic Fink (Cali Condors) 2021 International Swimming League December 4, 2021 / Eindhoven, Netherlands	55.92 Adam Peaty (London Roar) 2019 International Swimming League December 21, 2019 / Las Vegas, Nevada
200 breast	2:01.60 Nic Fink (USA) 2022 World Championships December 16, 2022 / Melbourne, AUS	2:02.33 Cody Miller (USA) 2015 Duel in the Pool December 11, 2015 / Indianapolis, United States
butterfly	American Record (25 m)	U.S. Open Record (25 m)
50 fly	21.99^[15] Tom Shields (USA) 2021 FINA Swimming World Cup October 9, 2021 / Budapest, Hungary	21.99 Dylan Carter (Trinidad and Tobago) 2022 FINA Swimming World Cup November 5, 2022 / Indianapolis, United States
100 fly	47.78 Caeleb Dressel (Cali Condors) 2020 International Swimming League November 21, 2020 / Budapest, Hungary	48.63 Tom Shields (USA) 2015 Duel in the Pool December 11, 2015 / Indianapolis
200 fly	1:48.66 Tom Shields (LA Current) 2020 International Swimming League November 22, 2020 / Budapest, Hungary	1:48.77 Daiya Seto (Energy Standard) 2019 International Swimming League December 21, 2019 / Las Vegas, Nevada
individual medley	American Record (25 m)	U.S. Open Record (25 m)
100 IM	49.28⁺ Caeleb Dressel (Cali Condors) 2020 International Swimming League November 22, 2020 / Budapest, Hungary	51.04 Shaine Casas (USA) 2022 FINA Swimming World Cup November 3, 2022 / Indianapolis, United States
200 IM	1:49.51 Shaine Casas (USA) 2024 World Championships December 10, 2024 / Budapest, Hungary	1:50.76 Daiya Seto (Energy Standard) 2019 International Swimming League December 21, 2019 / Las Vegas, Nevada
400 IM	3:55.50 Ryan Lochte (USA) 2010 Short Course Worlds December 16, 2010 / Dubai, UAE	3:54.81⁺ Daiya Seto (Energy Standard) 2019 International Swimming League December 20, 2019 / Las Vegas, Nevada
relays	American Record (25 m)	U.S. Open Record (25 m)
200 free relay	1:21.80 C. Dressel (20.43) R. Held (20.25) J. Conger (20.59) M. Chadwick (20.53) 2018 World Championships December 14, 2018 / Hangzhou, China	1:23.75 Auburn Tigers G. Bovell (21.40) R. Wochomurka (21.04) D. Gibb (20.76) F. Bousquet (20.55) 2004 Men's NCAA Division I Championships March 25, 2004 / East Meadow, New York
400 free relay	3:01.66⁺ J. Alexy (45.05) L. Hobson (45.18) K. Smith (46.01) C. Guiliano (45.42) 2024 World Championships December 10, 2024 / Budapest, Hungary	3:05.11 London Roar C. McEvoy (47.49) K. Chalmers (45.55) Y. Kisil (46.68) D. Scott (45.39) 2019 International Swimming League December 20, 2019 / Las Vegas, Nevada
800 free relay	6:40.51⁺ L. Hobson (1:38.91) C. Foster (1:40.77) S. Casas (1:40.34) K. Smith (1:40.49) 2024 World Championships December 13, 2024 / Budapest, Hungary	7:01.42 Michigan Wolverines P. Vanderkaay (1:45.69) D. Tarwater (1:45.61) A. Hurd (1:44.96) D. Ketchum (1:45.16) 2004 Men's NCAA Division I Championships March 26, 2004 / East Meadow, New York
200 medley relay	1:30.37 R. Murphy (22.61) N. Fink (25.24) S. Casas (22.13) M. Andrew (20.39) 2022 World Championships December 17, 2022 / Melbourne, AUS	1:31.31 University of Florida Jonathon Marshall (23.34) Julian Smith (25.63) Joshua Liendo (21.43) Ed Fullum-Huot (20.91) Virginia vs. Florida Dual Meet October 18, 2024 / Charlottesville, Virginia
400 medley relay	3:18.98 R. Murphy (48.96) N. Fink (54.88) T. Julian (49.19) K. Smith (45.95) 2022 World Championships December 18, 2022 / Melbourne, AUS	3:20.91 M. Grevers (49.25) K. Cordes (58.03) T. Shields (48.07) N. Adrian (45.56) 2015 Duel in the Pool December 12, 2015 / Indianapolis

Women

Event	American Record (25 m)	U.S. Open Record (25 m)
freestyle
50 free	22.83⁺ Gretchen Walsh (USA) 2024 World Championships December 15, 2024 / Budapest, Hungary	23.10 Gretchen Walsh (University of Virginia) Virginia vs. Florida Dual Meet October 18, 2024 / Charlottesville, Virginia
100 free	50.31 Gretchen Walsh (USA) 2024 World Championships December 12, 2024 / Budapest, Hungary	51.00 Siobhán Haughey (HKG) 2022 FINA Swimming World Cup November 5, 2022 / Indianapolis, United States
200 free	1:51.62 Claire Weinstein (USA) 2024 World Championships December 15, 2024 / Budapest, Hungary	1:51.19 Siobhán Haughey (HKG) 2022 FINA Swimming World Cup November 4, 2022 / Indianapolis, United States
400 free	3:52.88 Katie Ledecky (USA) 2022 FINA Swimming World Cup October 28, 2022 / Toronto, Canada	3:54.04 Katie Ledecky (USA) 2022 FINA Swimming World Cup November 3, 2022 / Indianapolis, United States
800 free	7:57.42⁺ Katie Ledecky (USA) 2022 FINA Swimming World Cup November 5, 2022 / Indianapolis, United States	same
1500 free	15:08.24⁺ Katie Ledecky (USA) 2022 FINA Swimming World Cup October 29, 2022 / Toronto, Canada	15:42.05 Katie Grimes (USA) 2022 FINA Swimming World Cup November 4, 2022 / Indianapolis, United States
backstroke	American Record (25 m)	U.S. Open Record (25 m)
50 back	25.23⁺ Regan Smith (USA) 2024 World Championships December 13, 2024 / Budapest, Hungary	25.37 Gretchen Walsh (University of Virginia) Virginia vs. Florida Dual Meet October 18, 2024 / Charlottesville, Virginia
100 back	54.02⁺ Regan Smith (USA) 2024 World Championships December 15, 2024 / Budapest, Hungary	55.09 Minna Atherton (London Roar) 2019 International Swimming League December 21, 2019 / Las Vegas, Nevada
200 back	1:58.04⁺ Regan Smith (USA) 2024 World Championships December 15, 2024 / Budapest, Hungary	1:59.75 Katinka Hosszú (Team Europe) 2015 Duel in the Pool December 11, 2015 / Indianapolis
breaststroke	American Record (25 m)	U.S. Open Record (25 m)
50 breast	28.77 Lilly King (Cali Condors) 2020 International Swimming League November 21, 2020 / Budapest, Hungary	28.70 Rūta Meilutytė (LTU) 2022 FINA Swimming World Cup November 5, 2022 / Indianapolis, United States
100 breast	1:02.50 Lilly King (Cali Condors) 2020 International Swimming League November 22, 2020 / Budapest, Hungary	1:02.77 Rūta Meilutytė (LTU) 2022 FINA Swimming World Cup November 4, 2022 / Indianapolis, United States
200 breast	2:12.50⁺ Kate Douglass (USA) 2024 World Championships December 13, 2024 / Budapest, Hungary	2:17.03 Lilly King (Cali Condors) 2019 International Swimming League December 20, 2019 / Las Vegas, Nevada
butterfly	American Record (25 m)	U.S. Open Record (25 m)
50 fly	23.94⁺ Gretchen Walsh (USA) 2024 World Championships December 10, 2024 / Budapest, Hungary	24.81 Béryl Gastaldello (LA Current) 2019 International Swimming League November 17, 2019 / College Park, Maryland
100 fly	52.71⁺ Gretchen Walsh (USA) 2024 World Championships December 14, 2024 / Budapest, Hungary	55.10 Jeanette Ottesen (Denmark) 2015 Duel in the Pool December 11, 2015 / Indianapolis, United States
200 fly	2:01.00 Regan Smith (USA) 2024 World Championships December 12, 2024 / Budapest, Hungary	2:03.39 Cammile Adams (USA) 2015 Duel in the Pool December 12, 2015 / Indianapolis
individual medley	American Record (25 m)	U.S. Open Record (25 m)
100 IM	55.11⁺ Gretchen Walsh (USA) 2024 World Championships December 13, 2024 / Budapest, Hungary	55.98 Gretchen Walsh (University of Virginia) Virginia vs. Florida Dual Meet October 18, 2024 / Charlottesville, Virginia
200 IM	2:01.63⁺ Kate Douglass (USA) 2024 World Championships December 10, 2024 / Budapest, Hungary	2:03.66 Katinka Hosszú (Team Europe) 2015 Duel in the Pool December 12, 2015 / Indianapolis
400 IM	4:20.14 Katie Grimes (USA) 2024 World Championships December 14, 2024 / Budapest, Hungary	4:21.21 Katinka Hosszú (Team Europe) 2015 Duel in the Pool December 11, 2015 / Indianapolis
relays	American Record (25 m)	U.S. Open Record (25 m)
200 free relay	1:33.89 T. Huske (24.08) C. Curzan (23.30) E. Brown (23.74) K. Douglass (22.77) (USA) 2022 World Championships December 15, 2022 / Melbourne, AUS	1:37.27 Georgia Bulldogs K. L. Joyce (24.24) N. Mabry (24.45) P. Kearns (24.34) A. Georoff (24.24) 2004 NCAA Division I Women's Championships March 18, 2004 / College Station, Texas
400 free relay	3:26.29 T. Huske (51.73) K. Douglass (51.17) C. Curzan (51.59) E. Brown (51.80) (USA) 2022 World Championships December 13, 2022 / Melbourne, AUS	3:26.48 Energy Standard P. Oleksiak (52.89) S. Sjöström (51.41) K. Sanchez (51.56) F. Heemskerk (50.62) 2019 International Swimming League December 20, 2019 / Las Vegas, Nevada
800 free relay	7:30.13⁺ A. Walsh (1:53.25) P. Madden (1:53.18) K. Grimes (1:53.39) C. Weinstein (1:50.31) 2024 World Championships December 12, 2024 / Budapest, Hungary	7:47.72 D. Vollmer (1:57.83) R. Komisarz (1:57.87) L. Benko (1:55.44) K. Sandeno (1:56.58) 2004 Short Course Worlds October 7, 2004 / Indianapolis
200 medley relay	1:42.38 O. Smoliga (25.97) K. Meili (29.29) K. Dahlia (24.02) M. Comerford (23.10) 2018 World Championships December 12, 2018 / Hangzhou, China	1:44.14 University of Virginia Gretchen Walsh (25.37) Zoe Skirboll (30.00) Claire Curzan (24.52) Maxine Parker (24.25) Virginia vs. Florida Dual Meet October 18, 2024 / Charlottesville, Virginia
400 medley relay	3:40.41⁺ R. Smith (54.02) L. King (1:03.02) G. Walsh (52.84) K. Douglass (50.53) 2024 World Championships December 15, 2024 / Budapest, Hungary	3:45.20 C. Bartholomew (56.08) K. Meili (1:02.88) K. Worrell (55.01) S. Manuel (51.23) 2015 Duel in the Pool December 11, 2015 / Indianapolis

Short course yards (25 yd)

Men

Event	American Record (25 yd)	U.S. Open Record (25 yd)
freestyle
50 free	17.63^[16] Caeleb Dressel (Florida) 2018 NCAA Division I Championships March 22, 2018 / Minneapolis	same
100 free	39.90^[17] Caeleb Dressel (Florida) 2018 NCAA Division I Championships March 24, 2018 / Minneapolis	39.83 Jordan Crooks (Tennessee) 2025 NCAA Division I Championships March 29, 2025 / Federal Way, Washington
200 free	1:28.33 Luke Hobson (Texas) 2025 NCAA Division I Championships March 29, 2025 / Federal Way, Washington	same
500 free	4:04.45 Rex Maurer (Texas) Texas Hall of Fame Invite November 20, 2024 / Austin, Texas	4:02.31 Léon Marchand (Arizona State) 2024 NCAA Division I Championships March 28, 2024 / Indianapolis, Indiana
1000 free	8:33.93^[18] Clark Smith (Texas) 2015 Texas Swimming & Diving Hall of Fame Invite December 6, 2015 / Austin, Texas	same
1650 free	14:12.08^[19] Bobby Finke (Florida) 2020 SEC Swimming & Diving Championships February 22, 2020 / Auburn, Alabama	same
backstroke	American Record (25 yd)	U.S. Open Record (25 yd)
100 back	43.35^[20] Luca Urlando (Georgia Bulldogs) 2022 NCAA Division I Championships (r) March 25, 2022 / Atlanta, Georgia	43.20 Hubert Kos (Texas) 2025 NCAA Division I Championships March 28, 2025 / Federal Way, Washington
200 back	1:35.37 Destin Lasco (Cal) 2024 NCAA Division I Championships March 30, 2024 / Indianapolis, Indiana	1:34.21 Hubert Kos (Texas) 2025 NCAA Division I Championships March 29, 2025 / Federal Way, Washington
breaststroke	American Record (25 yd)	U.S. Open Record (25 yd)
100 breast	49.51 Julian Smith (Florida) 2025 SEC Championships February 21, 2025 / Athens, Georgia	same
200 breast	1:47.91^[21] Will Licon (Texas) 2017 NCAA Division I Championships March 25, 2017 / Indianapolis, Indiana	1:46.35 Léon Marchand (Arizona State) 2024 NCAA Division I Championships March 30, 2024 / Indianapolis
butterfly	American Record (25 yd)	U.S. Open Record (25 yd)
100 fly	42.80^[22] Caeleb Dressel (Florida) 2018 NCAA Division I Championships March 23, 2018 / Minneapolis	same
200 fly	1:36.43 Luca Urlando (Georgia) 2025 NCAA Division I Championships March 29, 2025 / Federal Way, Washington	same
individual medley	American Record (25 yd)	U.S. Open Record (25 yd)
200 IM	1:37.91 Destin Lasco (Cal) 2024 NCAA Division I Championships March 28, 2024 / Indianapolis, Indiana	1:36.34 Léon Marchand (Arizona State) 2023 NCAA Division I Championships March 23, 2023 / Minneapolis
400 IM	3:33.42 Chase Kalisz (Georgia) 2017 NCAA Division I Championships March 24, 2017 / Indianapolis, Indiana	3:28.82 Léon Marchand (Arizona State) 2023 NCAA Division I Championships March 24, 2023 / Minneapolis
relays	American Record (25 yd)	U.S. Open Record (25 yd)
200 free relay	1:14.13 NC State Wolfpack N. Henderson (18.93) L. Miller (18.23) J. Fox (18.44) Q. McCarty (18.53) 2024 NCAA Division I Championships March 28, 2024 / Indianapolis, Indiana	1:12.80 Tennessee Volunteers J. Crooks (17.96) G. Caribé (18.04) L. Taylor (18.25) N. Blackman (18.55) 2025 SEC Championships February 19, 2025 / Athens, Georgia
400 free relay	2:44.31^[23] NC State Wolfpack R. Held (41.05) J. Ress (40.62) J. Molacek (41.02) C. Stewart (41.62) 2018 NCAA Division I Championships March 24, 2018 / Minneapolis	2:42.30 Tennessee Volunteers G. Caribé (40.57) L. Taylor (41.02) N. Blackman (41.35) J. Crooks (39.36) 2025 NCAA Division I Championships March 29, 2025 / Federal Way, Washington
800 free relay	6:00.08 Texas Longhorns L. Hobson (1:28.90) C. Guiliano (1:30.13) R. Maurer (1:29.91) C. Carrozza (1:31.14) 2025 NCAA Division I Championships March 26, 2025 / Federal Way, Washington	5:59.75 California Golden Bears J. Alexy (1:30.02) G. Jett (1:29.16) D. Lasco (1:29.10) L. Henveaux (1:31.47) 2025 NCAA Division I Championships March 26, 2025 / Federal Way, Washington
200 medley relay	1:20.92 Indiana Hoosiers L. Barr (20.65) B. Benzing (22.65) F. Brooks (19.49) M. King (18.13) 2025 NCAA Division I Championships March 26, 2025 / Federal Way, Washington	1:20.15 Florida Gators A. Chaney (20.29) J. Smith (22.55) J. Liendo (18.97) M. McDuff (18.34) 2024 NCAA Division I Championships March 27, 2024 / Indianapolis, Indiana
400 medley relay	3:01.34 NC State Wolfpack Q. McCarty (45.57) S. Hoover (50.86) L. Miller (44.17) J. Fox (40.74) 2025 NCAA Division I Championships March 28, 2025 / Federal Way, Washington	2:55.66 Florida Gators J. Marshall (43.91) J. Smith (48.95) J. Liendo (42.12) A. Painter (40.68) 2025 SEC Championships February 21, 2025 / Athens, Georgia

Women

Event	American Record (25 yd)	U.S. Open Record (25 yd)
freestyle
50 free	20.37 Gretchen Walsh (Virginia) 2024 NCAA Div. I Championships March 21, 2024 / Athens, Georgia 20.37 Gretchen Walsh (Virginia) 2025 NCAA Div. I Championships March 20, 2025 / Federal Way, Washington	same
100 free	44.71 Gretchen Walsh (Virginia) 2025 NCAA Div. I Championships March 22, 2025 / Federal Way, Washington	same
200 free	1:39.10 Missy Franklin (Cal) 2015 NCAA Div. I Championships March 20, 2015 / Greensboro, North Carolina	same
500 free	4:24.06 Katie Ledecky (Stanford) 2017 NCAA Div. I Championships March 16, 2017 / Indianapolis, Indiana	same
1000 free	8:59.65 Katie Ledecky (Nation's Capital) 2015 Nation's Capital Swim Club Invite December 13, 2015 / College Park, Maryland	same
1650 free	15:01.41 Katie Ledecky (Gator Swim Club) 2023 Florida Spring Senior Championships March 12, 2023 / Orlando, Florida	same
backstroke	American Record (25 yd)	U.S. Open Record (25 yd)
100 back	48.10 Gretchen Walsh (Virginia) 2024 ACC Championships February 23, 2024 / Greensboro, North Carolina	same
200 back	1:46.82 Claire Curzan (Virginia) 2025 NCAA Div. I Championships March 22, 2025 / Federal Way, Washington	same
breaststroke	American Record (25 yd)	U.S. Open Record (25 yd)
100 breast	55.73^[24] Lilly King (Indiana) 2019 NCAA Div. 1 Championships March 22, 2019 / Austin, Texas	same
200 breast	2:01.29 Kate Douglass (Virginia) 2023 NCAA Div. I Championships March 18, 2023 / Knoxville, Tennessee	same
butterfly	American Record (25 yd)	U.S. Open Record (25 yd)
100 fly	46.97 Gretchen Walsh (Virginia) 2025 NCAA Div. I Championships March 21, 2025 / Federal Way, Washington	same
200 fly	1:48.33 Regan Smith (Arizona State) Dual Meet Arizona State vs. NC State October 21, 2023 / Tempe, Arizona	same
individual medley	American Record (25 yd)	U.S. Open Record (25 yd)
200 IM	1:48.37 Kate Douglass (Virginia) 2023 NCAA Div. I Championships March 16, 2023 / Knoxville, Tennessee	same
400 IM	3:54.60^[25] Ella Eastin (Stanford) 2018 NCAA Div. I Championships March 16, 2018 / Columbus, Ohio	same
relays	American Record (25 yd)	U.S. Open Record (25 yd)
200 free relay	1:23.87 Virginia Cavaliers K. Douglass (20.95) G. Walsh (20.48) L. Cuomo (21.14) A. Walsh (21.30) 2023 ACC Championships February 15, 2023 / Greensboro, North Carolina	1:23.63 Virginia Cavaliers J. Nocentini (21.55) G. Walsh (19.95) A. Walsh (20.82) M. Parker (21.31) 2024 ACC Championships February 21, 2024 / Greensboro, North Carolina
400 free relay	3:05.84 Virginia Cavaliers K. Douglass (46.37) A. Walsh (46.58) Maxine Parker (47.04) G. Walsh (45.85) 2023 NCAA Div. I Championships March 18, 2023 / Knoxville, Tennessee	same
800 free relay	6:45.91 Stanford Cardinal S. Manuel (1:41.41) L. Neal (1:42.15) E. Eastin (1:41.89) K. Ledecky (1:40.46) 2017 NCAA Div. I Championships March 15, 2017 / Indianapolis, Indiana	6:44.13 Virginia Cavaliers G. Walsh (1:39.34) A. Walsh (1:41.87) A. Canny (1:42.03) C. Curzan (1:40.89) 2025 ACC Championships February 18, 2025 / Greensboro, North Carolina
200 medley relay	1:31.10 Virginia Cavaliers C. Curzan (23.17) A. Walsh (25.62) G. Walsh (20.88) M. Parker (21.43) 2025 NCAA Div. I Championships 19 March 2025 / Federal Way, Washington	same
400 medley relay	3:19.58 Virginia Cavaliers C. Curzan (49.35) A. Walsh (57.05) G. Walsh (47.00) A. Moesch (46.18) 2025 ACC Championships February 21, 2025 / Greensboro, North Carolina	same

Notes

[a]^ American Record — May be established only by United States Citizens who are also U.S. Sports Citizens who achieve an official time in accordance with USA Swimming rules. (USA Swimming Rules 104.2.2(A)(1)). Note: Portions of this rule were changed in September 2008 so that only swimmers who are representing the USA at the time of the swim, or capable of representing the USA, are eligible. This follows Mike Alexandrov's setting of the American Record in the 100 yd breaststroke at a time when he was swimming internationally for Bulgaria.

[b]^ United States Open Record — May be established only within the geographical territory of the United States by any person eligible to compete under and achieving an official time in accordance with USA Swimming rules. (USA Swimming Rules 104.2.2(A)(2)). Prior to 1985, this record included the fastest time swum by any United States citizen anywhere, but from 1985-on U.S. Open Records may not be attained in this manner. However, any remaining old records are valid until they are bettered. (This record should not be confused with the U.S. Open Meet Record, which is the fastest time swum at the U.S. Open meet.)

[d]^ A team representing the USA swam a time of 3:32.48 at the 2010 Pan Pacific Swimming Championships on August 21, 2010, but the record has not been recognized by USA Swimming. The team consisted of Aaron Peirsol-53.91, Mark Gangloff-1:00.45, Michael Phelps-50.58, and Nathan Adrian-47.54.

[e]^ For the U.S. Open Record in the men's long course 200 IM, Ryan Lochte swam under the listed record of 1:54.56 at the 2010 Pan Pacs, winning the event in 1:54.43; however, the time has not been recognized as the record.