World record progression 4 × 50 metres freestyle relay

This article includes the world record progression for the 4×50 metres freestyle relay and it shows the chronological history of world record times in that competitive short course swimming event. The 4×50 metres freestyle relay is a relay event in which each of four swimmers on a team swims a 50-metre freestyle leg in sequence. The world records are recognized by and maintained by FINA ("Fédération Internationale de Natation"), the international competitive swimming and aquatics federation that overseas the sport in international competition.

World records in swimming were first recognized by FINA in 1908. The long course (50-metre pool) world records are historically older than the short course (25-metre pool) records. FINA amended its regulations governing the recognition of world records in 1956; specifically, FINA mandated that only record times that were contested in 50-metre (or 55-yard) pools were eligible for recognition after that time.^[1] The short-course world records have been separately recognized since 1991. On July 25, 2013 FINA Technical Swimming Congress voted to allow world records in the long course mixed 400 free relay and mixed 400 medley relay, as well as in six events in short course meters: the mixed 200 medley and 200 free relays, as well as the men's and women's 200 free relays and the men's and women's 200 medley relays.^[2] In October 2013 FINA decided to establish "standards" before something can be recognized as the first world record in these events.^[3] But later on March 13, 2014 FINA has officially ratified the eight world records set by Indiana University swimmers at the IU Relay Rally held on September 26, 2013 in Bloomington.^[4]

Men

#	Time		Name	Nationality	Date	Meet	Location	Ref
1	1:36.81		Cody Miller James Wells Matt Gerth Philip Butler	Indiana University Hoosiers	26 September 2013	IU Fall Frenzy	Bloomington, United States	[5][6]
2	1:25.52	h	(21.82) François Heersbrandt  (21.16) Yoris Grandjean  (21.49) Pieter Timmers  (21.05) Jasper Aerents	Belgium	15 December 2013	European Championships	Herning, Denmark	[7]
3	1:23.36		(20.87) Vladimir Morozov  (20.57) Sergei Fesikov  (21.03) Evgeny Lagunov  (20.89) Nikita Konovalov	Russia	15 December 2013	European Championships	Herning, Denmark	[8]
4	1:22.60		(21.01) Vladimir Morozov  (20.37) Evgeny Sedov  (20.59) Oleg Tikhobaev  (20.63) Sergei Fesikov	Russia	6 December 2014	World Championships	Doha, Qatar	[9]

Legend: # – Record awaiting ratification by FINA;
Records not set in finals: h – heat

Women

#	Time		Name	Nationality	Date	Meet	Location	Ref
1	1:54.97		Stephanie Marchuk Claudia Dicapua Audrey Scott Grace Padget	Indiana University Hoosiers	26 September 2013	IU Fall Frenzy	Bloomington, United States	[10][11]
2	1:37.21	h	(24.72) Michelle Coleman  (23.60) Sarah Sjöström  (24.50) Louise Hansson  (24.39) Magdalena Kuras	Sweden	12 December 2013	European Championships	Herning, Denmark	[12]
3	1:37.04		(24.90) Pernille Blume  (23.66) Jeanette Ottesen  (24.63) Kelly Riber Rasmussen  (23.85) Mie Nielsen	Denmark	12 December 2013	European Championships	Herning, Denmark	[13]
4	1:35.74	h	(25.09) Esmee Vermeulen  (23.01) Ranomi Kromowidjojo  (23.89) Maud van der Meer  (23.75) Inge Dekker	Netherlands	7 December 2014	World Championships	Doha, Qatar	[14]
5	1:34.24		(24.09) Inge Dekker  (23.24) Femke Heemskerk  (24.03) Maud van der Meer  (22.88) Ranomi Kromowidjojo	Netherlands	7 December 2014	World Championships	Doha, Qatar	[15]

Legend: # – Record awaiting ratification by FINA;
Records not set in finals: h – heat

Mixed

#	Time		Name	Nationality	Date	Meet	Location	Ref
1	1:41.16		(27.64) Bailey Pressey  (26.36) Stephanie Armstrong  (23.71) Tanner Kurz  (23.55) Cody Miller	Indiana University Hoosiers	26 September 2013	IU Fall Frenzy	Bloomington, United States	[16][17][18]
-	1:36.78	unratified	(23.12) Michael Wynalda  (25.23) Zoe Mattingly  (25.75) Sli DeLoof  (22.68) Kyle Whitaker	Michigan University	28 September 2013	Water Carnival	Ann Arbor, United States	[19]
2	1:33.01		(24.56) Rozaliya Nasretdinova  (21.97) Dmitry Ermakov  (22.06) Artem Lobuzov  (24.42) Maria Reznikova	Russia	13 October 2013	World Cup	Moscow, Russia	[20][21]
3	1:32.52		(21.63) Shinri Shioura  (25.28) Sayaka Akase  (20.70) Kenta Ito  (24.91) Kanako Watanabe	Japan	18 October 2013	World Cup	Dubai, United Arab Emirates	[22][23]
4	1:31.14		(21.22) Florent Manaudou  (20.87) Jérémy Stravius  (24.61) Mélanie Henique  (24.44) Anna Santamans	France	21 October 2013	World Cup	Doha, Qatar	[24][25]
5	1:31.13	h	(21.62) Tomaso D'Orsogna  (21.98) Regan Leong  (24.03) Bronte Campbell  (23.50) Cate Campbell	Australia	10 November 2013	World Cup	Tokyo, Japan	[26][27]
6	1:29.61		(21.48) Tomaso D'Orsogna  (21.59) Travis Mahoney  (23.10) Cate Campbell  (23.44) Bronte Campbell	Australia	10 November 2013	World Cup	Tokyo, Japan	[26][28]
7	1:29.53		(21.13) Sergey Fesikov  (20.72) Vladimir Morozov  (23.70) Rozaliya Nasretdinova  (23.98) Veronika Popova	Russia	14 December 2013	European Championships	Herning, Denmark	[29][30]
8	1:28.57		(20.94) Josh Schneider  (20.75) Matt Grevers  (23.63) Madison Kennedy  (23.25) Abbey Weitzeil	United States	6 December 2014	World Championships	Doha, Qatar	[31][32]

Legend: # – Record awaiting ratification by FINA;
Records not set in finals: h – heat

References

1. Craig Lord, "A Time of Change for World Records," SwimVortex.com (28 May 2013). Retrieved 20 March 2015.
2. "FINA Swimming Rules 2013 - 2017 incl. World Record Application Form" (PDF). FINA. 16 August 2013. Retrieved 5 December 2015.
3. Craig Lord (3 October 2013). "FINA To Set World Best Standards For Mixed Relays". swimvortex.com. Retrieved 5 December 2015.
4. "FINA Goes Back in Time to Ratify Indiana Hoosier Swims as World Records". Swimming World Magazine. 13 March 2014. Retrieved 5 December 2015.
5. "Indiana Posts Eight New Relay World Records at Fall Frenzy". Swimming World Magazine. 11 August 2013. Retrieved 5 December 2015.
6. "FINA Goes Back in Time to Ratify Indiana Hoosier Swims as World Records". Swimming World Magazine. 13 March 2014. Retrieved 5 December 2015.
7. "2013 European Short Course Swimming Championships Day 4 Results" (PDF). Microplus Informatica. 15 December 2013. Retrieved 5 December 2015.
8. "2013 European Short Course Swimming Championships Day 4 Finals Results" (PDF). Microplus Informatica. 15 December 2013. Retrieved 5 December 2015.
9. "Men's 4×50m Freestyle Relay Results". Omega Timing. 6 December 2014. Retrieved 5 December 2015.
10. "Indiana Posts Eight New Relay World Records at Fall Frenzy". Swimming World Magazine. 11 August 2013. Retrieved 5 December 2015.
11. "FINA Goes Back in Time to Ratify Indiana Hoosier Swims as World Records". Swimming World Magazine. 13 March 2014. Retrieved 5 December 2015.
12. "2013 European Short Course Swimming Championships Day 1 Heats Results" (PDF). Microplus Informatica. 12 December 2013. Retrieved 5 December 2015.
13. "2013 European Short Course Swimming Championships Day 1 Results" (PDF). Microplus Informatica. 12 December 2013. Retrieved 5 December 2015.
14. "Women's 4×50m Freestyle Relay Results (heats)". Omega Timing. 7 December 2014. Retrieved 4 August 2016.
15. "Women's 4×50m Freestyle Relay Results (final)". Omega Timing. 7 December 2014. Retrieved 4 August 2016.
16. "Indiana posts eight new relay world records at Fall Frenzy". Swimming World. 26 September 2013. Retrieved 5 December 2015.
17. Keith, Braden (26 September 2013). "Relay world record onslaught begins in Indiana". swimswam. Retrieved 2 May 2016.
18. Marsteller, Jason (13 March 2014). "FINA goes back in time to ratify Indiana Hoosier swims as world records". Swimming World. Retrieved 5 December 2015.
19. "Two Short Course Meter World Records During Water Carnival". Swimming World Magazine. 28 September 2013. Retrieved 5 December 2015.
20. "FINA World Cup, Moscow: Ruta Meilutyte rattles WR; Katinka Hosszu busy; Mixed relay WR set". Swimming World. 13 October 2013. Retrieved 5 December 2015.
21. "Results of the mixed 4 × 50 metre freestyle relay at the 2013 FINA Swimming World Cup event in Moscow" (pdf). Omega Timing. 13 October 2013. Retrieved 2 May 2016.
22. "FINA World Cup, Dubai: Japan Sets Mixed 200 Free Relay World Record; Plenty of Close Calls". Swimming World. 18 October 2013. Retrieved 5 December 2015.
23. "Results of the mixed 4 × 50 metre freestyle relay at the 2013 FINA Swimming World Cup event in Dubai" (pdf). Omega Timing. 18 October 2013. Retrieved 2 May 2016.
24. "FINA World Cup, Doha: Tom Shields Breaks American Record; Katinka Hosszu Triples". Swimming World. 21 October 2013. Retrieved 5 December 2015.
25. "Results of the mixed 4 × 50 metre freestyle relay at the 2013 FINA Swimming World Cup event in Doha" (pdf). Omega Timing. 18 October 2013. Retrieved 2 May 2016.
26. Lord, Craig (10 November 2013). "Aus & sizzling sisters 2 WRs; Efimova claims dash WR". swimvortex. Retrieved 2 May 2016.
27. "Results of the mixed 4 × 50 metre freestyle relay heats at the 2013 FINA Swimming World Cup event in Tokyo" (pdf). Omega Timing. 10 November 2013. Retrieved 2 May 2016.
28. "Results of the mixed 4 × 50 metre freestyle relay final at the 2013 FINA Swimming World Cup event in Tokyo" (pdf). Omega Timing. 10 November 2013. Retrieved 2 May 2016.
29. "European Short Course Championships: Russian world record headlines night three". Swimming World. 14 December 2013. Retrieved 5 December 2015.
30. "Results of the mixed 4 × 50 metre freestyle relay final at the 2013 European Short Course Swimming Championships" (pdf). Results of Day 3 afternoon session of the 2013 European Short Course Swimming Championships. Herning 2013: 20. 14 December 2013. Retrieved 2 May 2016.
31. Anderson, Jared (6 December 2014). "Team USA breaks world record in 4×50 mixed free relay to close SC Worlds Day 4". swimswam. Retrieved 2 May 2016.
32. "Results of the mixed 4 × 50 metre freestyle relay final at the 2014 FINA World Swimming Championships (25 m)" (pdf). Omega Timing. 6 December 2014. Retrieved 2 May 2016.