Surf Wiki
Save to docs
general/world-record-progressions-in-swimming

From Surf Wiki (app.surf) — the open knowledge base

World record progression 400 metres individual medley

none

Summary

none

Main article: List of world records in swimming

The first world record in the 400 metres individual medley in long course (50 metres) swimming was recognized by the International Swimming Federation (FINA) in 1957, followed by the women a year later. In the short course (25 metres) swimming events the world's governing body recognizes world records since March 3, 1991.

Men

Long course

-
ref

Short course

Women

Long course

-
ref

Short course

All-time top 25

*- denotes top performance (only) for other top 25 athletes who fall outside the top 25 400 m individual medley times*

Men long course

  • Correct as of December 2025
Ath.#Perf.#TimeAthleteNationDatePlace
114:02.50Léon Marchand25 July 2023Fukuoka
24:02.95Marchand #228 July 2024Paris
234:03.84Michael Phelps10 August 2008Beijing
44:04.28Marchand #318 June 2022Budapest
54:04.73Marchand #43 August 2025Singaporetitle=2025 World Aquatics Championships - Men's 400m IM Final Resultsurl=https://www.omegatiming.com/File/00011900010105EF0104FFFFFFFFFF01.pdfwork=Omega Timingdate=3 August 2025access-date=3 August 2025}}
364:05.18Ryan Lochte28 July 2012London
74:05.25Phelps #218 June 2008Omaha
484:05.90Chase Kalisz30 July 2017Budapest
594:06.05Kosuke Hagino6 August 2016Rio de Janeiro
104:06.08Lochte #218 June 2008Omaha
6114:06.09Daiya Seto25 January 2020Tokyo
7124:06.16László Cseh10 August 2008Beijing
134:06.22Phelps #31 April 2007Melbourne
144:06.40Lochte #37 July 2009Indianapolis
8154:06.56Carson Foster18 June 2022Budapest
25 July 2023Fukuoka
174:06.75Kalisz #26 August 2016Rio de Janeiro
9184:06.96Tyler Clary7 July 2009Indianapolis
194:06.99Kalisz #329 June 2017Indianapolis
204:07.01Lochte #42 August 2009Rome
214:07.02Foster #35 December 2025Austin
224:07.06Lochte #525 June 2012Omaha
234:07.11Marchand #516 May 2025Austin
244:07.13Lochte #631 July 2011Shanghai
10254:07.21Tomoyuki Matsushita4 September 2025Tokyo
114:07.46Bobby Finke5 June 2025Indianapolis
124:07.47Dávid Verrasztó24 June 2017Rome
134:07.67Asaki Nishikawa29 November 2025Tokyo
144:08.05Ilya Borodin25 July 2022Kazan
154:08.70Lewis Clareburt30 July 2022Birmingham
164:08.85Max Litchfield28 July 2024Paris
174:08.86Thiago Pereira2 August 2009Romeurl=https://www.omegatiming.com/File/0001090B0068000000FFFFFFFFFFFF01.pdftitle=13th FINA World Championships - Men's 400 IM Final Resultswebsite=Omegatiming.comdate=2 August 2009access-date=30 June 2022}}
28 July 2012London
184:09.10Wang Shun4 September 2013Shenyangtitle=Wang Shun Blasts Chinese Record on Night One of Chinese National Gamesurl=https://www.swimmingworldmagazine.com/news/wang-shun-blasts-chinese-record-on-night-one-of-chinese-national-games/access-date=20 April 2025magazine=Swimming World}}
194:09.18Duncan Scott7 April 2022Sheffield
204:09.22Jay Litherland28 July 2019Gwangju
214:09.27Brendon Smith28 July 2021Tokyo
224:09.29Alberto Razzetti30 November 2023Riccione
234:09.38Yumeki Kojima19 July 2025Suzuka
244:09.65Rex Maurer5 June 2025Indianapolis
254:09.79Kosuke Makino23 March 2025Tokyotitle=2025 Japanese Championships - Men's 400m IM Final Resultsurl=https://swim.seiko.co.jp/2024/S70701/ranking/04R095.pdfpublisher=seiko.co.jpdate=23 March 2025accessdate=23 March 2025}}

Men short course

  • Correct as of October 2025
Ath.#Perf.#TimeAthleteNationDatePlace
113:54.81Daiya Seto20 December 2019Las Vegas
223:55.50Ryan Lochte16 December 2010Dubai
33:55.53Seto #226 October 2019Tokyo
43:55.75Seto #317 December 2022Melbournetitle=Men's 400m IM Final Resultsurl=https://www.omegatiming.com/File/00011700030105EF0104FFFFFFFFFF01.pdfwork=Omega Timingdate=17 December 2022access-date=21 December 2022}}
353:56.13Shaine Casas25 October 2025Toronto
63:56.26Seto #420 December 2021Abu Dhabi
73:56.33Seto #54 December 2014Doha
83:56.43Seto #615 December 2018Hangzhou
493:56.47Ilya Borodin20 December 2021Abu Dhabi
5103:56.48Kosuke Hagino13 January 2014Tokyo
113:56.83Borodin #214 December 2024Budapest
6123:57.01Alberto Razzetti10 December 2023Otopeni
133:57.25Seto #730 September 2018Eindhoven
7143:57.27László Cseh11 December 2009Istanbul
8153:57.40Oussama Mellouli16 December 2010Dubai
163:57.41Casas #219 October 2025Westmont
9173:57.45Carson Foster14 December 2024Budapest
10183:57.56Tyler Clary16 December 2010Dubai
193:57.63Foster #217 December 2022Melbourne
203:57.66Seto #815 November 2017Tokyo
213:57.67Borodin #325 November 2024Saint Petersburg
223:57.85Seto #930 October 2021Kazan
11233:57.91Thomas Fraser-Holmes28 November 2015Sydney
243:57.99Foster #320 December 2021Abu Dhabi
253:58.08Borodin #424 November 2022Kazan
123:58.30Léon Marchand26 October 2024Incheon
133:59.21Matthew Sates17 December 2022Melbourne
143:59.23Chad le Clos9 November 2013Tokyo
153:59.33Brendon Smith30 September 2021Naples
163:59.47Péter Bernek14 December 2017Copenhagen
173:59.81Duncan Scott20 December 2019Las Vegas
183:59.90Conor Dwyer10 August 2013Berlin
193:59.99Wang Shun17 November 2018Singapore
204:00.10Dávid Verrasztó11 December 2009Istanbul
214:00.18Max Litchfield16 December 2018Sheffield
224:00.43Kaito Tabuchi14 December 2024Budapest
234:00.44Tomoyuki Matsushita19 October 2024Tokyo
244:00.55Gal Nevo11 December 2009Istanbul
254:00.57Tristan Jankovics14 December 2024Budapest

Women long course

  • Correct as of January 2026
Ath.#Perf.#TimeAthleteNationDatePlace
114:23.65Summer McIntosh11 June 2025Victoria
24:24.38McIntosh #216 May 2024Toronto
34:25.78McIntosh #33 August 2025Singaporetitle=2025 World Aquatics Championships - Women's 400m IM Final Resultsurl=https://www.omegatiming.com/File/00011900010205EF0104FFFFFFFFFF01.pdfwork=Omega Timingdate=3 August 2025access-date=4 August 2025}}
44:25.87McIntosh #41 April 2023Toronto
254:26.36Katinka Hosszú6 August 2016Rio de Janeiro
64:26.98McIntosh #57 March 2025Westmont
74:27.11McIntosh #630 July 2023Fukuokatitle=2023 World Aquatics Championships - Women's 400m IM Final Resultsurl=https://www.omegatiming.com/File/00011600010205EF0104FFFFFFFFFF01.pdfwork=Omega Timingdate=30 July 2023access-date=30 July 2023}}
84:27.71McIntosh #729 July 2024Paris
94:28.13McIntosh #816 January 2026Austin
3104:28.22Kaylee McKeown18 April 2024Gold Coast
4114:28.43Ye Shiwen28 July 2012London
124:28.58Hosszú #26 August 2016Rio de Janeiro
134:28.61McIntosh #92 December 2022Greensboro
144:29.01McIntosh #1029 July 2022Birmingham
154:29.12McIntosh #114 March 2022Toronto
164:29.33Hosszú #330 July 2017Budapesttitle=17th FINA World Championships - Women’s 400m IM Final Resultsurl=https://www.omegatiming.com/File/000111010A0205EF04FFFFFFFFFFFF01.pdfpublisher=omegatiming.comdate=30 July 2017access-date=26 March 2025}}
5174:29.45Stephanie Rice10 August 2008Beijing
6184:29.89Kirsty Coventry10 August 2008Beijing
184:29.89Hosszú #44 March 2016Marseille
204:29.96McIntosh #121 December 2023Greensboro
214:30.31Hosszú #52 August 2009Rome
224:30.39Hosszú #69 August 2015Kazantitle=16th FINA World Championships - Women's 400m IM Final Resultsurl=http://www.omegatiming.com/File/Download?id=00010F020001042502FFFFFFFFFFFF02publisher=Omega Timingdate=9 August 2015access-date=12 August 2017}}
Hosszú #728 July 2019Gwangju
244:30.41Hosszú #84 August 2013Barcelona
7254:30.43Li Xuanxu17 October 2009Jinan
84:30.82Yui Ohashi8 April 2018Tokyo
94:30.85Qi Hui17 October 2009Jinan
104:31.12Katie Hoff29 June 2008Omaha
114:31.15Maya Dirado6 August 2016Rio de Janeiro
124:31.21Mireia Belmonte4 August 2013Barcelonatitle=15th FINA World Championships - Women's 400m IM Final Resultsurl=http://www.omegatiming.com/File/Download?id=00010D020101042502FFFFFFFFFFFF02publisher=Omega Timingdate=4 August 2013access-date=23 July 2014}}
134:31.27Elizabeth Beisel28 July 2012London
144:31.33Hannah Miley20 March 2009Sheffield
154:31.41Katie Grimes30 July 2023Fukuoka
164:32.30Jenna Forrester30 July 2023Fukuoka
174:32.52Emily Overholt9 August 2015Kazan
184:32.53Melanie Margalis6 March 2020Des Moines
194:32.76Emma Weyant25 July 2021Tokyo
204:32.88Sydney Pickrem30 July 2017Budapest
214:33.01Aimee Willmott24 July 2014Glasgow
224:33.26Mio Narita3 August 2025Singapore
234:33.50Zhou Min4 September 2013Shenyang
244:33.59Yana Klochkova16 September 2000Sydney
254:33.76Yu Zidi3 August 2025Singapore

Women short course

  • Correct as of October 2025
Ath.#Perf.#TimeAthleteNationDatePlace
114:15.48Summer McIntosh14 December 2024Budapest
224:18.94Mireia Belmonte12 August 2017Eindhoven
334:19.46Katinka Hosszú2 December 2015Netanya
44:19.75Hosszú #22 December 2015Netanya
54:19.82Hosszú #36 August 2017Berlintitle=2017 FINA World Cup (Berlin) - Women's 400m IM Final Resultsurl=https://www.omegatiming.com/File/00011101020205EF04FFFFFFFFFFFF01.pdfpublisher=Omega Timingdate=6 August 2017accessdate=2 May 2025}}
64:19.86Belmonte #23 December 2014Doha
474:20.14Katie Grimes14 December 2024Budapest
84:20.83Hosszú #428 August 2014Doha
94:20.85Hosszú #511 August 2013Berlin
5104:21.04Julia Smit18 December 2009Manchester
114:21.05Hosszú #63 December 2014Doha
124:21.21Hosszú #711 December 2015Indianapolis
134:21.23Belmonte #315 December 2013Herningtitle=2013 European Short Course Championships - Women's 400m IM Final Resultsurl=https://web.archive.org/web/20191205075302/http://www.microplustiming.it/herning2013/pdf/Book.pdf#page=243work=Wayback Machinedate=2 December 2015accessdate=2 May 2025}}
144:21.40Hosszú #811 December 2018Hangzhou
154:21.49McIntosh #229 October 2022Toronto
164:21.67Hosszú #96 December 2016Windsor
174:21.91Hosszú #1010 November 2018Tokyotitle=2018 FINA World Cup (Tokyo) - Women's 400m IM Final Resultsurl=https://www.omegatiming.com/File/000112010A0205EF04FFFFFFFFFFFF01.pdfpublisher=Omega Timingdate=10 November 2018accessdate=2 May 2025}}
184:22.05Hosszú #1114 November 2017Tokyo
194:22.06Hosszú #121 September 2014Dubai
204:22.18Hosszú #138 August 2013Eindhoven
214:22.55Belmonte #46 August 2017Berlin
224:22.68Belmonte #52 November 2014Singapore
6234:22.73Yui Ohashi10 November 2018Tokyo
7244:22.88Kathryn Meaklim22 November 2009Singapore
254:22.94Hosszú #143 December 2014Doha
84:22.97Ellen Walshe24 October 2025Toronto
94:23.14Hannah Miley12 December 2012Istanbultitle=11th FINA World Championships (25m) - Women's 400m IM Final Resultsurl=https://www.omegatiming.com/File/00010C010D01042502FFFFFFFFFFFF02.pdfpublisher=Omega Timingdate=12 December 2012accessdate=3 May 2025}}
104:23.33Ye Shiwen12 December 2012Istanbul
114:23.68Sydney Pickrem15 November 2020Budapest
124:24.15Melanie Margalis20 December 2019Las Vegas
134:24.25Mary-Sophie Harvey24 October 2025Toronto
144:24.31Dagny Knutson18 December 2009Manchester
154:24.34Abbie Wood14 December 2024Budapest
164:24.62Caitlin Leverenz16 December 2011Atlanta
174:25.37Aimee Willmott15 December 2013Herning
184:25.50Hali Flickinger22 November 2020Budapest
194:25.55Tessa Cieplucha16 December 2021Abu Dhabi
204:25.56Elizabeth Beisel3 December 2014Doha
214:25.61Zsuzsanna Jakabos25 November 2012Chartres
224:26.06Alessia Filippi14 December 2008Rijeka
Ella Eastin12 August 2017Eindhoven
244:26.31Bailey Andison5 September 2021Naples
254:26.41Fantine Lesaffre23 November 2019London

References

References

  1. (17 September 2000). "2000 Olympic Games - Men's 400m IM Final Results". [[Omega SA.
  2. Phillip Whitten. (15 August 2002). "FLASH!! Michael Phelps, Erik Vendt Both Break the World Record in the 400 IM".
  3. (7 April 2003). "2003 Duel in the Pool - Men's 400m IM Results". [[Omega SA.
  4. (27 July 2003). "10th FINA World Championships - Men's 400m IM Final Results". [[Omega SA.
  5. (7 July 2004). "2004 US Olympic Trials - Men's 400m IM Final Results". [[Omega SA.
  6. Stephen Thomas. (14 August 2004). "New World Record as Michael “the Machine” Lowers ‘his’ 400 IM Yet Again! Vendt takes Silver, as USA Goes 1-2".
  7. (1 April 2007). "12th FINA World Championships - Men's 400m IM Final Results". [[Omega SA.
  8. (29 June 2008). "2008 US Olympic Trials - Men's 400m IM Final Results". [[Omega SA.
  9. John Lohn. (10 August 2008). "Olympics, Swimming: Flash Michael Phelps Smashes World Record in 400 IM".
  10. (23 July 2023). "2023 World Aquatics Championships - Men's 400m IM Final Results". omegatiming.com.
  11. (24 July 2023). "NEW WORLD RECORD Leon Marchand Men 400m Medley". World Aquatics.
  12. (16 December 2010). "2009 European Championships - Men's 400m IM Final Results". Omega Timing.
  13. (16 December 2010). "10th FINA World Championships (25m) - Men's 400m IM Final Results". Omega Timing.
  14. (20 December 2019). "2019 International Swimming League (Final) - Men's 400m Individual Medley Results".
  15. (29 September 2000). "2000 Olympic Games - Women's 400m IM Final Results". [[Omega SA.
  16. (1 April 2007). "12th FINA World Championships - Women's 400m IM Final Results". [[Omega SA.
  17. (22 March 2008). "Rice and Seebohm smash world records". [[The Sydney Morning Herald]].
  18. (29 June 2008). "2008 US Olympic Trials - Women's 400m IM Final Results". [[Omega SA.
  19. Lohn, John. (10 August 2008). "Return to Sender…Stephanie Rice Blasts Women's 400 IM World Record".
  20. (28 July 2012). "2012 London Olympics: China's Ye Shiwen Crushes World Record".
  21. (6 August 2016). "'Iron Lady' Katinka Hosszu shatters world record in 400 IM, American Maya DiRado takes second". [[Yahoo!]].
  22. (1 April 2023). "2023 Canadian Trials - Women's 400m IM Final Results". swimming.ca.
  23. (16 May 2024). "2024 Canadian Trials - Women's 400m IM Final Results". swimming.ca.
  24. (1 April 2023). "Video Women's 400m IM Canadian Swimming Trials Final". swim swam.
  25. (11 June 2025). "2025 Canadian Trials - Women's 400m IM Final Results". results.swimming.ca.
  26. (9 April 2008). "9th FINA World Championships (25m) - Women's 400m IM Final Results". Omega Timing.
  27. (14 December 2008). "2008 European Short Course Championships (25m) - Women's 400m IM Final Results". Omega Timing.
  28. (22 November 2013). "2009 FINA World Cup (Singapore) - Women's 400m IM Final Results".
  29. (18 December 2009). "2009 Duel in the Pool - Women's 400m IM Final Results".
  30. (11 August 2013). "2013 FINA World Cup (Berlin) - Women's 400m IM Final Results".
  31. (28 August 2014). "2014 FINA World Cup (Doha) - Women's 400m IM Final Results".
  32. (3 December 2014). "2014 FINA World Championships (25) - Women's 400m IM Final Results". Omega Timing.
  33. (2 December 2015). "2015 European Short Course Championships - Women's 400m IM Heats Results". microplustiming.com.
  34. (12 August 2017). "2017 FINA World Cup (Eindhoven) - Women's 400m IM Results". Omega Timing.
  35. (14 December 2024). "2024 World Aquatics Championships (25 m) - Women's 400m IM Final Results". Omega Timing.
  36. (14 December 2024). "Video - Women's 400m IM Final".
  37. "Men's 400m Individual Medley Long Course All-Time Ranking".
  38. "2024 Olympic Games - Men's 400m IM Final Results". [[International Olympic Committee]].
  39. (18 June 2022). "19th FINA World Championships - Men's 400m IM Final Results". [[Omega SA.
  40. (3 August 2025). "2025 World Aquatics Championships - Men's 400m IM Final Results". Omega Timing.
  41. (28 July 2012). "2012 London Olympics: Ryan Lochte Posts Textile Best, Demolishes Field in 400 IM; Michael Phelps Misses Podium".
  42. "17th FINA World Championships - Men's 400m IM Final Results".
  43. (7 August 2016). "Olympic swimming results 2016: Kosuke Hagino wins gold in men’s 400m individual medley". SB Nation.
  44. Lohn, John. (25 January 2020). "Daiya Seto Fires Latest Warning Shot With 4:06.09 Effort in 400 Medley [RACE VIDEO]".
  45. (7 July 2009). "2009 US National Championships - Men's 400m IM Final Results". [[Omega SA.
  46. (29 June 2017). "2017 US National Championships - Men's 400m IM Final Results". omegatiming.com.
  47. (5 December 2025). "2025 US Open - Men's 400m IM Final Results". Omega Timing.
  48. (25 June 2012). "2012 US Olympic Trials - Men's 400m IM Results". Omega Timing.
  49. Mark Wild. (16 May 2025). "Longhorn Elite Day 3 Finals: Marchand’s 4:07.11 Puts World on Notice, Gemmell & Maurer Shine".
  50. (31 July 2011). "14th FINA World Championships - Men's 400 IM Final Results".
  51. (4 September 2025). "2025 Japanese Student Championships - Men's 400 IM Final Results".
  52. (5 June 2025). "2025 US National Championships - Men's 400m IM Final Results".
  53. Retta Race. (24 June 2017). "2017 Sette Colli: Verraszto & Seto Crush 4:07 400 IM In Thrilling Duel".
  54. (29 November 2025). "2025 Japan Open - Men's 400m IM Final Results".
  55. Retta Race. (25 July 2022). "Ilya Borodin Blasts 4:08.05 400 IM For New Russian National Record".
  56. (30 July 2022). "2022 Commonwealth Games - Men's 400m IM Final Results". Microplus Informatica.
  57. (2 August 2009). "13th FINA World Championships - Men's 400 IM Final Results".
  58. "Wang Shun Blasts Chinese Record on Night One of Chinese National Games".
  59. (7 April 2022). "2022 British Championships - Men's 400m IM Final Results".
  60. (28 July 2019). "18th FINA World Championships - Men's 400m IM Final Results". [[Omega SA.
  61. (24 July 2021). "2020 Olympic Games - Men's 400m IM Heats Results". olympics.com.
  62. (30 November 2023). "2023 Italian Championships - Men's 400m IM Final Results". microplustiming.com.
  63. (19 July 2025). "72nd Tokai High School Athletic Meet - Men's 400m IM Final Results". tdsystem.co.jp.
  64. (23 March 2025). "2025 Japanese Championships - Men's 400m IM Final Results". seiko.co.jp.
  65. "Men's 400m Individual Medley Short Course All-Time Ranking".
  66. Andy Ross. (26 October 2019). "Daiya Seto Rattles 400 IM SCM World Record in Japan".
  67. (17 December 2022). "Men's 400m IM Final Results". Omega Timing.
  68. (25 October 2025). "2025 World Aquatics Cup - Men's 400m IM Results". Omega Timing.
  69. (20 December 2021). "15th FINA World Championships (25m) - Men's 400m IM Final Results".
  70. (4 December 2014). "12th FINA World Championships (25m) - Men's 400m IM Final Results".
  71. (15 December 2018). "14th FINA World Championships (25m) - Men's 400m IM Final Results".
  72. (13 January 2014). "Men's 400m IM Results".
  73. (14 December 2024). "2024 World Aquatics Championships (25m) - Men's 400m IM Final Results". Omega Timing.
  74. (10 December 2023). "Men's 400m IM Final Results". Omega Timing.
  75. (30 September 2018). "2018 FINA World Cup (Eindhoven) - Men's 400m IM Final Results". Omega Timing.
  76. (19 October 2025). "2025 World Aquatics Cup (Westmont) - Men's 400m IM Results". Omega Timing.
  77. (15 November 2017). "2017 FINA World Cup (Tokyo) - Men's 400m IM Final Results". Omega Timing.
  78. (25 November 2024). "2024 Russian Championships (25m) - Men's 400m IM Final Results".
  79. (30 October 2021). "2021 FINA World Cup (Kazan) - Men's 400m IM Final Results". Omega Timing.
  80. (28 November 2015). "2015 Australian Short Course Championships - Men's 400m IM Final Results". swimming.org.au.
  81. James Sutherland. (24 November 2022). "Borodin, Shymanovich & Kameneva Post World-leading Times on Day 5 of Russian Champs".
  82. (26 October 2024). "Men's 400m IM Results". Omega Timing.
  83. (9 November 2013). "2013 FINA World Cup (Tokyo) - Men's 400m IM Final Results". Omega Timing.
  84. (30 September 2021). "Men's 400m IM Results".
  85. (14 December 2017). "2017 European Short Course Championships - Men's 400m IM Final Results". microplustiming.com.
  86. (10 August 2013). "2013 FINA World Cup (Berlin) - Men's 400m IM Final Results". Omega Timing.
  87. (17 November 2018). "2018 FINA World Cup (Singapore) - Men's 400m IM Final Results". Omega Timing.
  88. Retta Race. (16 December 2018). "Max Litchfield Nails SCM 400 IM British Record; World’s #3 Time".
  89. (19 October 2024). "2025 Japanese Championships (25m) - Men's 400m IM Final Results".
  90. "Women's 400m Individual Medley Long Course All-Time Ranking".
  91. (3 August 2025). "2025 World Aquatics Championships - Women's 400m IM Final Results". Omega Timing.
  92. (7 March 2025). "2025 TYR Pro Swim Series (Westmont) - Women's 400m IM Final Results". [[Omega SA.
  93. (30 July 2023). "2023 World Aquatics Championships - Women's 400m IM Final Results". [[Omega SA.
  94. "2024 Olympic Games - Women's 400m IM Final Results". [[International Olympic Committee]].
  95. (16 January 2026). "2026 USA Swimming Pro Swim Series (Austin) - Women's 400m IM Final Results".
  96. (18 April 2024). "2024 Australian Championships - Women's 400m IM Final Results". swimming.org.au.
  97. Braden Keith. (6 August 2016). "Katinka Hosszu Swims 2nd-fastest 400 IM in History".
  98. (2 December 2022). "2022 US Open - Women’s 400m IM A Final Results". omegatiming.com.
  99. (29 July 2022). "2022 Commonwealth Games - Women's 400m IM Final Results". birmingham2022.com.
  100. Yanyan Li. (4 March 2022). "Summer Mcintosh Goes 4:29.12 in 400 IM, #3 Performer of All Time".
  101. (30 July 2017). "17th FINA World Championships - Women’s 400m IM Final Results". omegatiming.com.
  102. (4 March 2016). "Katinka Hosszu Cranks Out European Record 4:29.89 400 IM in France".
  103. (1 December 2023). "2023 US Open - Women’s 400m IM A Final Results". omegatiming.com.
  104. (2 August 2009). "13th FINA World Championships - Women's 400m IM Final Results". [[Omega SA.
  105. (9 August 2015). "16th FINA World Championships - Women's 400m IM Final Results". Omega Timing.
  106. (28 July 2019). "18th FINA World Championships - Women's 400m IM Final Results". Omega Timing.
  107. (17 October 2009). "Chinese National Games: Asian, Chinese Records Fall".
  108. (8 April 2018). "2018 Japanese Championships - Women's 400m IM Final Results". swim.seiko.co.jp.
  109. (4 August 2013). "15th FINA World Championships - Women's 400m IM Final Results". Omega Timing.
  110. (2009-03-20). "Rampant Miley adds to record haul". BBC News.
  111. Lauren Neidigh. (6 March 2020). "Melanie Margalis Becomes 4th Fastest American Ever With 4:32 400 IM".
  112. "2020 Olympic Games - Women's 400m IM Final results".
  113. Jason Marsteller. (24 July 2014). "Australia Breaks Women’s 400 Free Relay World Record at Commonwealth Games".
  114. "Women's 400m Individual Medley Short Course All-Time Ranking".
  115. (2 December 2015). "2015 European Short Course Championships - Women's 400m IM Final Results". microplustiming.com.
  116. (6 August 2017). "2017 FINA World Cup (Berlin) - Women's 400m IM Final Results". Omega Timing.
  117. (3 December 2014). "12th FINA World Championships (25m) - Women's 400m IM Heats Results". Omega Timing.
  118. (11 December 2015). "2015 Duel in the Pool - Women's 400m IM Results". Omega Timing.
  119. (2 December 2015). "2013 European Short Course Championships - Women's 400m IM Final Results". Wayback Machine.
  120. (11 December 2018). "14th FINA World Championships (25m) - Women's 400m IM Final Results". Omega Timing.
  121. (29 October 2022). "2022 World Aquatics Cup (Toronto) - Women's 400m IM Results". Omega Timing.
  122. (6 December 2016). "13th FINA World Championships (25m) - Women's 400m IM Final Results". Omega Timing.
  123. (10 November 2018). "2018 FINA World Cup (Tokyo) - Women's 400m IM Final Results". Omega Timing.
  124. (14 November 2017). "2017 FINA World Cup (Berlin) - Women's 400m IM Results". Omega Timing.
  125. (1 September 2014). "2014 FINA World Cup (Dubai) - Women's 400m IM Final Results". Omega Timing.
  126. (8 August 2013). "2013 FINA World Cup (Eindhoven) - Women's 400m IM Final Results". Omega Timing.
  127. (2 November 2014). "2014 FINA World Cup (Singapore) - Women's 400m IM Final Results". Omega Timing.
  128. (24 October 2025). "2025 World Aquatics Cup (Toronto) - Women's 400m IM Results". Omega Timing.
  129. (12 December 2012). "11th FINA World Championships (25m) - Women's 400m IM Final Results". Omega Timing.
  130. (15 November 2020). "2020 International Swimming League (Semifinal 1) - Women's 400m IM Results". Omega Timing.
  131. (26 October 2019). "2019 International Swimming League (Final) - Women's 400m IM Results".
  132. (16 December 2011). "2011 Duel in the Pool - Women's 400m IM Results". Omega Timing.
  133. (22 November 2020). "2020 International Swimming League (Final) - Women's 400m IM Results". Omega Timing.
  134. (16 December 2021). "15th FINA World Championships (25m) - Women's 400m IM Final Results". Omega Timing.
  135. (25 November 2012). "2012 European Short Course Championships - Women's 400m IM Final Results". Omega Timing.
  136. (5 September 2021). "2021 International Swimming League (Match 4) - Women's 400m IM Results". Omega Timing.
  137. (23 November 2019). "2019 International Swimming League (European Derby) - Women's 400m IM Results".
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

world-record-progressions-in-swimming medley-swimming
Want to explore this topic further?

Ask Mako anything about World record progression 400 metres individual medley — get instant answers, deeper analysis, and related topics.

Research with Mako

Free with your Surf account

Content sourced from Wikipedia, available under CC BY-SA 4.0.

This content may have been generated or modified by AI. CloudSurf Software LLC is not responsible for the accuracy, completeness, or reliability of AI-generated content. Always verify important information from primary sources.

Report