World Records

Short course · 25m

Individual events

MenWomen

50m Freestyle

Men

Dec 14, 2024 · Budapest, Hungary

Women

Dec 15, 2024 · Budapest, Hungary

100m Freestyle

Men

Oct 29, 2021 · Kazan, Russia

Women

Oct 25, 2025 · Toronto, Canada

200m Freestyle

Men

Dec 15, 2024 · Budapest, Hungary

Women

Mollie O'Callaghan

Oct 24, 2025 · Toronto, Canada

400m Freestyle

Men

Nov 15, 2012 · Angers, France

Women

Summer McIntosh

Dec 10, 2024 · Budapest, Hungary

800m Freestyle

Men

Dec 10, 2023 · Otopeni, Romania

Women

Oct 25, 2025 · Toronto, Canada

1500m Freestyle

Men

Florian Wellbrock

Dec 21, 2021 · Abu Dhabi, United Arab Emirates

Women

Oct 29, 2022 · Toronto, Canada

50m Backstroke

Men

Kliment Kolesnikov

Nov 23, 2022 · Kazan, Russia

Women

Dec 13, 2024 · Budapest, Hungary

100m Backstroke

Men

Oct 25, 2025 · Toronto, Canada

Women

Oct 18, 2025 · Westmont, United States

200m Backstroke

Men

Oct 23, 2025 · Toronto, Canada

Women

Oct 25, 2025 · Toronto, Canada

50m Breaststroke

Men

Dec 27, 2021 · Gaziantep, Turkey

Women

Rūta Meilutytė

Dec 17, 2022 · Melbourne, Australia

100m Breaststroke

Men

Ilya Shymanovich

Nov 26, 2021 · Eindhoven, Netherlands

Women

Aug 26, 2016 · Chartres, France

200m Breaststroke

Men

Oct 25, 2025 · Toronto, Canada

Women

Dec 13, 2024 · Budapest, Hungary

50m Butterfly

Men

Dec 11, 2024 · Budapest, Hungary

Women

Oct 11, 2025 · Carmel, United States

100m Butterfly

Men

Oct 23, 2025 · Toronto, Canada

Women

Dec 14, 2024 · Budapest, Hungary

200m Butterfly

Men

Oct 22, 2022 · Tokyo, Japan

Women

Summer McIntosh

Dec 12, 2024 · Budapest, Hungary

100m Individual Medley

Men

Nov 22, 2020 · Budapest, Hungary

Women

Dec 13, 2024 · Budapest, Hungary

200m Individual Medley

Men

Nov 1, 2024 · Singapore

Women

Dec 10, 2024 · Budapest, Hungary

400m Individual Medley

Men

Dec 20, 2019 · Las Vegas, United States

Women

Summer McIntosh

Dec 14, 2024 · Budapest, Hungary

Relays

MenWomen

4×50m Freestyle Relay

Men

Caeleb Dressel (20.43) Ryan Held (20.25) Jack Conger (20.59) Michael Chadwick (20.53)

Dec 14, 2018 · Hangzhou, China

Women

Ranomi Kromowidjojo (23.05) Maaike de Waard (23.16) Kim Busch (23.47) Femke Heemskerk (22.82)

Dec 12, 2020 · Eindhoven, Netherlands

4×100m Freestyle Relay

Men

Jack Alexy (45.05) Luke Hobson (45.18) Kieran Smith (46.01) Chris Guiliano (45.42)

Dec 10, 2024 · Budapest, Hungary

Women

Kate Douglass (50.95) Katharine Berkoff (51.38) Alex Shackell (52.01) Gretchen Walsh (50.67)

Dec 10, 2024 · Budapest, Hungary

4×200m Freestyle Relay

Men

Luke Hobson (1:38.91) Carson Foster (1:40.77) Shaine Casas (1:40.34) Kieran Smith (1:40.49)

Dec 13, 2024 · Budapest, Hungary

Women

Alex Walsh (1:53.25) Paige Madden (1:53.18) Katie Grimes (1:53.39) Claire Weinstein (1:50.31)

Dec 12, 2024 · Budapest, Hungary

4×50m Medley Relay

Men

Lorenzo Mora (22.65) Nicolò Martinenghi (24.95) Matteo Rivolta (21.60) Leonardo Deplano (20.52)

Dec 17, 2022 · Melbourne, Australia

Women

Mollie O'Callaghan (25.49) Chelsea Hodges (29.11) Emma McKeon (24.43) Madison Wilson (23.32)

Dec 17, 2022 · Melbourne, Australia

4×100m Medley Relay

Men

Miron Lifintsev (49.31) Kirill Prigoda (55.15) Andrei Minakov (48.80) Egor Kornev (45.42)

Dec 15, 2024 · Budapest, Hungary

Women

Regan Smith (54.02) Lilly King (1:03.02) Gretchen Walsh (52.84) Kate Douglass (50.53)

Dec 15, 2024 · Budapest, Hungary

Mixed relays

4×50m Freestyle Relay

Leonardo Deplano (20.97) Lorenzo Zazzeri (20.51) Silvia Di Pietro (23.07) Sara Curtis (22.71)

Dec 4, 2025 · Lublin, Poland

4×50m Medley Relay

Ryan Murphy (22.37) Nic Fink (24.96) Kate Douglass (24.09) Torri Huske (23.73)

Dec 14, 2022 · Melbourne, Australia

4×100m Medley Relay

Miron Lifintsev (48.90) Kirill Prigoda (54.86) Arina Surkova (55.63) Daria Klepikova (51.08)

Dec 14, 2024 · Budapest, Hungary