World record progression 100 metres individual medley

Main article: List of world records in swimming

This is a listing of the history of the World Record in the swimming event: 100 Individual Medley. The event consists of one 25-meter lap of each stroke (butterfly, backstroke, breaststroke, and freestyle), and as such is only recognized in short course (25m) pools.

Short course (25m)

Men

#	Time		Name	Nationality	Date	Meet	Location	Ref
1	54.66		Josef Hladky	Germany	16 March 1991	World Cup	Bonn, Germany	[1]
2	53.78		Jani Sievinen	Finland	21 November 1992	European Championships	Espoo, Finland	[2]
2	53.78	=	Jani Sievinen	Finland	24 January 1996	World Cup	Sheffield, United Kingdom	[3]
3	53.10		Jani Sievinen	Finland	30 January 1996	World Cup	Malmö, Sweden	[2]
4	52.79		Neil Walker	United States	18 March 2000	World Championships	Athens, Greece	[4]
5	52.63	sf	Peter Mankoč	Slovenia	15 December 2001	European Championships	Antwerp, Belgium	[5]
6	52.58		Thomas Rupprath	Germany	25 January 2003	World Cup	Berlin, Germany	[6]
7	52.51		Roland Schoeman	South Africa	18 January 2005	World Cup	Stockholm, Sweden	[7]
8	52.11		Ryk Neethling	South Africa	22 January 2005	World Cup	Berlin, Germany	[8]
9	52.01		Ryk Neethling	South Africa	26 January 2005	World Cup	Moscow, Russia
10	51.52		Ryk Neethling	South Africa	11 February 2005	World Cup	East Meadow, NY, United States	[9]
11	51.25	sf	Ryan Lochte	United States	12 April 2008	World Championships	Manchester, United Kingdom	[10]
12	51.15		Ryan Lochte	United States	13 April 2008	World Championships	Manchester, United Kingdom	[11]
13	50.95	h	Sergey Fesikov	Russia	14 November 2009	World Cup	Berlin, Germany	[12]
14	50.76	sf	Peter Mankoč	Slovenia	12 December 2009	European Championships	Istanbul, Turkey	[13]
15	50.71	sf	Ryan Lochte	United States	15 December 2012	World Championships	Istanbul, Turkey	[14]
16	50.66		Markus Deibler	Germany	7 December 2014	World Championships	Doha, Qatar	[15]
17	50.60		Vladimir Morozov	Russia	26 August 2016	World Cup	Chartres, France	[16]
18	50.30		Vladimir Morozov	Russia	30 August 2016	World Cup	Berlin, Germany	[17]
19	50.26		Vladimir Morozov	Russia	28 September 2018	World Cup	Eindhoven, Netherlands	[18]
19	50.26	=	Vladimir Morozov	Russia	9 November 2018	World Cup	Tokyo, Japan	[19]
20	49.88		Caeleb Dressel	United States	16 November 2020	International Swimming League	Budapest, Hungary	[20]
21	49.28		Caeleb Dressel	United States	22 November 2020	International Swimming League	Budapest, Hungary	[21]

Legend: # – Record awaiting ratification by FINA;
Records not set in finals: h – heat; sf – semifinal; r – relay 1st leg; rh – relay heat 1st leg; b – B final; † – en route to final mark; tt – time trial

Women

#	Time		Name	Nationality	Date	Meet	Location	Ref
WB	1:02.75		Marion Zoller	Germany	30 March 1991	World Cup	Sheffield, United Kingdom
1	1:01.61		Lin Li	China	29 February 1992	World Cup	Palma de Mallorca, Spain
2	1:01.03		Louise Karlsson	Sweden	22 November 1992	European Championships	Espoo, Finland
2	1:01.03	=	Louise Karlsson	Sweden	26 January 1997	World Cup	Malmö, Sweden	[22]
3	1:00.60		Hu Xiaowen	China	26 February 1998	World Cup	Beijing, China	[23]
4	1:00.43		Martina Moravcová	Slovakia	12 December 1998	European Championships	Sheffield, United Kingdom	[24]
5	1:00.41		Jenny Thompson	United States	16 January 1999	World Cup	Sydney, Australia	[25]
6	1:00.35	h	Martina Moravcová	Slovakia	2 April 1999	World Championships	Hong Kong, China	[26]
7	59.30	h	Jenny Thompson	United States	2 April 1999	World Championships	Hong Kong, China	[26]
8	58.80		Natalie Coughlin	United States	23 November 2002	World Cup	East Meadow, NY, United States	[27]
9	58.54		Emily Seebohm	Australia	10 August 2009	Australian Championships	Hobart, Australia	[28]
10	58.51	h	Therese Alshammar	Sweden	17 October 2009	World Cup	Durban, South Africa	[29]
11	58.40		Zhao Jing	China	11 November 2009	World Cup	Stockholm, Sweden	[30]
12	57.74		Hinkelien Schreuder	Netherlands	15 November 2009	World Cup	Berlin, Germany	[31]
13	57.73	h	Katinka Hosszú	Hungary	8 August 2013	World Cup	Eindhoven, Netherlands	[32]
14	57.50		Katinka Hosszú	Hungary	8 August 2013	World Cup	Eindhoven, Netherlands
15	57.45	h	Katinka Hosszú	Hungary	11 August 2013	World Cup	Berlin, Germany
16	57.25	h	Katinka Hosszú	Hungary	28 August 2014	World Cup	Doha, Qatar
17	56.86	h	Katinka Hosszú	Hungary	1 September 2014	World Cup	Dubai, United Arab Emirates	[33]
18	56.70		Katinka Hosszú	Hungary	5 December 2014	World Championships	Doha, Qatar	[34]
19	56.67		Katinka Hosszú	Hungary	4 December 2015	European Championships	Netanya, Israel	[35]
20	56.51		Katinka Hosszú	Hungary	7 August 2017	World Cup	Berlin, Germany	[36]
21	55.98	tt	Gretchen Walsh	United States	18 October 2024	Florida vs Virginia Dual Meet	Charlottesville, United States	[37]
22	55.71	sf	Gretchen Walsh	United States	12 December 2024	World Championships	Budapest, Hungary	[38]
23	55.11		Gretchen Walsh	United States	13 December 2024	World Championships	Budapest, Hungary	[39]

Legend: # – Record awaiting ratification by FINA;
Records not set in finals: h – heat; sf – semifinal; r – relay 1st leg; rh – relay heat 1st leg; b – B final; † – en route to final mark; tt – time trial

All-time top 25

Tables show data for two definitions of "Top 25" - the top 25 100 m individual medley times and the top 25 athletes:

- denotes top performance for athletes in the top 25 100 m individual medley times

- denotes lesser performances, still in the top 25 100 m individual medley times, by repeat athletes

- denotes top performance (only) for other top 25 athletes who fall outside the top 25 100 m individual medley times

Men

• Correct as of August 2025^[40]

Ath.#	Perf.#	Time	Athlete	Nation	Date	Place	Ref.
1	1	49.28	Caeleb Dressel	United States	22 November 2020	Budapest	[21]
	2	49.88	Dressel #2		16 November 2020	Budapest	[20]
2	3	49.92	Léon Marchand	France	31 October 2024	Singapore	[41]
3	4	50.26	Vladimir Morozov	Russia	28 September 2018	Eindhoven	[18]
					9 November 2018	Tokyo	[19]
	6	50.30	Morozov #3		30 August 2016	Berlin	[17]
	7	50.31	Morozov #4		15 November 2018	Singapore	[42]
	8	50.32	Morozov #5		4 October 2018	Budapest	[43]
	9	50.33	Morozov #6		29 October 2016	Hong Kong	[44]
4	9	50.33	Noè Ponti	Switzerland	13 December 2024	Budapest	[45]
	11	50.36	Morozov #7		11 November 2017	Beijing	[46]
	12	50.39	Ponti #2		31 October 2024	Singapore	[41]
	13	50.43	Ponti #3		12 December 2024	Budapest	[47]
	14	50.48	Dressel #3		10 November 2020	Budapest	[48]
	15	50.49	Morozov #8		18 November 2017	Singapore	[49]
	16	50.55	Morozov #9		25 October 2016	Tokyo	[50]
	17	50.60	Morozov #10		26 August 2016	Chartres	[16]
5	18	50.63	Kliment Kolesnikov	Russia	14 December 2018	Hangzhou	[51]
	19	50.64	Ponti #4		13 April 2025	Uster	[52]
	20	50.65	Marchand #2		18 October 2024	Shanghai	[53]
6	21	50.66	Markus Deibler	Germany	7 December 2014	Doha	[15]
	21	50.66	Ponti #5		18 October 2024	Shanghai	[53]
	23	50.68	Dressel #4		5 September 2021	Naples	[54]
	24	50.70	Morozov #11		21 October 2016	Singapore	[55]
			Morozov #12		11 August 2017	Eindhoven	[56]
7		50.71	Ryan Lochte	United States	15 December 2012	Istanbul	[14]
8		50.76	Peter Mankoč	Slovenia	12 December 2009	Istanbul	[13]
9		50.95	Sergei Fesikov	Russia	14 November 2009	Berlin	[12]
			Marco Orsi	Italy	7 November 2021	Kazan	[57]
11		50.96	Florent Manaudou	France	7 December 2013	Dijon	[58]
12		50.97	Thomas Ceccon	Italy	16 December 2022	Melbourne	[59]
13		51.03	Shaine Casas	United States	29 October 2022	Toronto	[60]
14		51.05	Gerhard Zandberg	South Africa	14 November 2009	Berlin	[61]
			Javier Acevedo	Canada	16 December 2022	Melbourne	[59]
16		51.10	Finlay Knox	Canada	16 December 2022	Melbourne	[59]
17		51.11	Bernhard Reitshammer	Austria	13 December 2024	Budapest	[45]
18		51.14	Marcin Cieślak	Poland	16 November 2020	Budapest	[20]
			Emre Sakçı	Turkey	23 December 2023	Istanbul	[62]
			Duncan Scott	Great Britain	18 October 2024	Shanghai	[53]
21		51.15	George Bovell	Trinidad and Tobago	7 August 2013	Eindhoven	[63]
22		51.16	Michael Andrew	United States	15 November 2018	Singapore	[42]
23		51.19	Kenneth To	Australia	20 October 2013	Doha	[64]
24		51.20	Duje Draganja	Croatia	13 December 2009	Istanbul	[65]
25		51.24	Wang Shun	China	18 October 2024	Shanghai	[53]

Women

• Correct as of December 2024^[66]

Ath.#	Perf.#	Time	Athlete	Nation	Date	Place	Ref.
1	1	55.11	Gretchen Walsh	United States	13 December 2024	Budapest	[39]
	2	55.71	Walsh #2		12 December 2024	Budapest	[38]
	3	55.98	Walsh #3		18 October 2024	Charlottesville	[37]
	4	56.06	Walsh #4		12 December 2024	Budapest	[67]
2	5	56.49	Kate Douglass	United States	13 December 2024	Budapest	[39]
3	6	56.51	Katinka Hosszú	Hungary	7 August 2017	Berlin	[36]
	7	56.57	Douglass #2		31 October 2024	Singapore	[68]
	8	56.67	Hosszú #2		4 December 2015	Netanya	[35]
4	8	56.67	Béryl Gastaldello	France	13 December 2024	Budapest	[39]
	10	56.70	Hosszú #3		5 December 2014	Doha	[34]
	11	56.75	Hosszú #4		14 December 2017	Copenhagen	[69]
	12	56.86	Hosszú #5		1 September 2014	Dubai	[33]
	13	56.88	Douglass #3		12 December 2024	Budapest	[38]
	14	56.97	Hosszú #6		1 October 2017	Hong Kong	[70]
			Hosszú #7		15 December 2017	Copenhagen	[71]
			Douglass #4		24 October 2024	Incheon	[72]
	17	56.98	Douglass #5		12 December 2024	Budapest	[67]
	18	56.99	Hosszú #8		4 December 2014	Doha	[73]
			Hosszú #9		7 August 2017	Berlin	[74]
			Douglass #6		18 October 2024	Shanghai	[75]
	21	57.02	Hosszú #10		2 August 2017	Moscow	[76]
5	22	57.04	Mary-Sophie Harvey	Canada	13 December 2024	Budapest	[39]
	23	57.05	Hosszú #11		2 November 2018	Beijing	[77]
	24	57.06	Hosszú #12		9 November 2018	Tokyo	[78]
	25	57.09	Hosszú #13		15 November 2017	Tokyo	[79]
6		57.10	Sarah Sjöström	Sweden	2 August 2017	Moscow	[76]
7		57.44	Yu Yiting	China	31 October 2024	Singapore	[68]
8		57.47	Charlotte Bonnet	France	7 December 2023	Otopeni	[80]
9		57.53	Alicia Coutts	Australia	10 November 2013	Tokyo	[81]
			Marrit Steenbergen	Netherlands	16 December 2022	Melbourne	[82]
Beata Nelson		United States	31 October 2024	Singapore	[68]
12		57.59	Siobhan-Marie O'Connor	Great Britain	3 December 2015	Netanya	[83]
			Maria Kameneva	Russia	6 December 2019	Glasgow	[84]
Anastasiya Shkurdai		Belarus	22 November 2020	Budapest	[85]
15		57.68	Rūta Meilutytė	Lithuania	14 December 2013	Herning	[86]
Louise Hansson	Sweden	16 December 2022	Melbourne	[82]
17	57.69	Rebecca Meder	South Africa	12 December 2024	Budapest	[38]
Tessa Giele	Netherlands	13 December 2024	Budapest	[39]
19	57.74	Hinkelien Schreuder	Netherlands	15 November 2009	Berlin	[31]
20	57.75	Rikako Ikee	Japan	15 November 2017	Tokyo	[87]
21	57.76	Kaylee McKeown	Australia	18 October 2024	Shanghai	[75]
22	57.77	Runa Imai	Japan	14 December 2018	Hangzhou	[88]
23	57.80	Kayla Sanchez	Canada	21 December 2018	Lausanne
Anastasia Gorbenko	Israel	19 December 2021	Abu Dhabi	[89]
25	57.82	Alicja Tchórz	Poland	26 July 2021	Kazan	[90]