Mollie O'Callaghan

Mollie Grace O'Callaghan, OAM (born 2 April 2004) is an Australian swimmer. She was the 2023 world champion in the women's 100m and 200m freestyle individual events, and part of the world champion 4 × 100 m and 4 × 200 m Australian women's relay teams together with 4 × 100 m mixed relay team. As of July 2023^[update] she is the world record holder in the women's individual 200m freestyle.

Mollie O'Callaghan

OAM

Personal information
Full name	Mollie Grace O’Callaghan
Nationality	Australian
Born	(2004-04-02) 2 April 2004 (age 20) Logan, Queensland, Australia^[1]
Sport
Sport	Swimming
Strokes	Freestyle
Club	St Peters Western Swim Club
Coach	Dean Boxall
Medal record Women's swimming Representing  Australia Event 1st 2nd 3rd Olympic Games 2 0 1 World Championships (LC) 8 4 0 World Championships (SC) 3 3 1 Commonwealth Games 5 2 0 World Junior Championships 0 1 0 Total 18 10 2 Olympic Games 2020 Tokyo 4×100 m freestyle 2020 Tokyo 4×100 m medley 2020 Tokyo 4×200 m freestyle World Championships (LC) 2022 Budapest 100 m freestyle 2022 Budapest 4×100 m freestyle 2022 Budapest 4×100 m mixed freestyle 2023 Fukuoka 100 m freestyle 2023 Fukuoka 200 m freestyle 2023 Fukuoka 4×100 m freestyle 2023 Fukuoka 4×200 m freestyle 2023 Fukuoka 4×100 m mixed freestyle 2022 Budapest 200 m freestyle 2022 Budapest 4×200 m freestyle 2022 Budapest 4×100 m medley 2023 Fukuoka 4×100 m medley World Championships (SC) 2022 Melbourne 4×100 m freestyle 2022 Melbourne 4×200 m freestyle 2022 Melbourne 4×50 m medley 2022 Melbourne 100 m backstroke 2022 Melbourne 4×50 m freestyle 2022 Melbourne 4×100 m medley 2022 Melbourne 50 m backstroke Commonwealth Games 2022 Birmingham 100 m freestyle 2022 Birmingham 4×100 m freestyle 2022 Birmingham 4×200 m freestyle 2022 Birmingham 4×100 m medley 2022 Birmingham 4×100 m mixed freestyle 2022 Birmingham 200 m freestyle 2022 Birmingham 50 m backstroke World Junior Championships 2019 Budapest 4×100 m freestyle

Previously, O'Callaghan won two gold and one bronze medallist in the 2020 Summer Olympics as a heats swimmer in relay events.

2020 Tokyo Olympics

O'Callaghan swam for the Australian team in the preliminaries of all three women's relays at the 2020 Summer Olympics in Tokyo, receiving two gold medals and one bronze for her contribution. Swimming the 1st leg for Australia in the heats of the 4 × 100 metre freestyle relay, she posted a time of 53.08 and received a gold medal after the Australian team won the final.^[2]

In the 4 × 200 metre freestyle relay preliminaries, O'Callaghan swam a junior world record of 1:55.11 when swimming the lead off leg. Her time would have placed her fifth in the 200 metre freestyle final.^[3] However, because the Australian coaches had previously decided to use four fresh swimmers in the final, O'Callaghan was controversially not selected for the final where Australia finished third.^[4]

In a heat of the 4 × 100 metre medley relay, O'Callaghan again posted a competitive time; her anchor leg split was 52.35, only 0.24 seconds slower than the fastest freestyle split in the final by Cate Campbell.

2023 World Aquatics Championships

At the 2023 World Aquatics Championships, O'Callaghan was a world champion in five events.

O'Callaghan won the women's 100m freestyle in 52.16, after qualifying in second place, and the women's 200m freestyle in a world record time of 1:52.85 after qualifying in third place. She was the first woman to win both of these events in a single world championship.^[5]

O'Callaghan was also part of three champion relay teams, each of which set a world-record time: the women's 4×100m freestyle relay;^[6] the women's 4×200m freestyle relay;^[7] and the mixed 4×100m freestyle relay.^[8]

Results in major championships

Meet	100 free	200 free	50 back	100 back	4×50 free	4×100 free	4×200 free	4×50 medley	4×100 medley	4×100 Mixed free	4×100 Mixed medley
WJC 2019	4th		4th	4th					5th	5th
OG 2021
WC 2022				DNS
CG 2022				DNS
SCW 2022
WC 2023			DNS

Career best times

Long course metres (50 m pool)

As of 28 July 2023^[9]

Event	Time		Meet	Location	Date	Notes
50 m freestyle	24.52		2022 Australian Championships	Adelaide	22 May 2022
100 m freestyle	52.08	r	2023 World Aquatics Championships	Fukuoka	23 July 2023
200 m freestyle	1:52.85		2023 World Aquatics Championships	Fukuoka	26 July 2023	WR^[10]
400 m freestyle	4:07.21		2023 NSW State Open Championships	Sydney	11 March 2023
50 m backstroke	27.38		2023 NSW State Open Championships	Sydney	12 March 2023
100 m backstroke	58.09		2024 Australian Championships	Gold Coast	18 April 2024
200 m backstroke	2:08.48		2022 Australian Championships	Adelaide	21 May 2022
50 m butterfly	27.86		Queensland Championships	Brisbane	17 December 2020

Legend: WR – World record; OC – Oceanian record; CR – Commonwealth record; NR – Australian record;
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

Short course metres (25 m pool)

As of 17 December 2022^[11]

Event	Time		Meet	Location	Date	Notes
50 m freestyle	24.40		Australian Virtual Short Course Championships	Brisbane	26 November 2020
100 m freestyle	51.50		2022 Australian Short Course Swimming Championships	Sydney	25 August 2022
200 m freestyle	1:55.24		McDonald's Queensland Championships	Brisbane	26 September 2020
50 m backstroke	25.49	r	2022 FINA World Swimming Championships (25 m)	Melbourne	17 December 2022	OC
100 m backstroke	55.62		2022 FINA World Swimming Championships (25 m)	Melbourne	14 December 2022
200 m backstroke	2:05.45		McDonald's Queensland Championships	Brisbane	25 September 2020
50 m butterfly	27.87		State Teams Championships	Canberra	4 October 2019

Legend: WR – World record; OC – Oceanian record; CR – Commonwealth record; NR – Australian record;
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

World records

Long course metres

No.	Event	Time	Meet	Location	Date	Status	Ref
1	4x100 m mixed freestyle relay^[a]	3:19.38	2022 World Aquatics Championships	Budapest, Hungary	24 June 2022	Former	^[12]
2	4x200 m freestyle relay^[b]	7:39.29	2022 Commonwealth Games	Birmingham, United Kingdom	31 July 2022	Former	^[13]
3	4×100 m freestyle relay^[c]	3:27.96	2023 World Aquatics Championships	Fukuoka, Japan	23 July 2023	Current	^[6]
4	200 m freestyle	1:52.85	2023 World Aquatics Championships	Fukuoka, Japan	26 July 2023	Current	^[14]
5	4x200 m freestyle relay^[d]	7:37.50	2023 World Aquatics Championships	Fukuoka, Japan	27 July 2023	Current	^[7]
6	4x100 m mixed freestyle relay^[e]	3:18.83	2023 World Aquatics Championships	Fukuoka, Japan	29 July 2023	Current	^[8]

Legend: OC – Oceanian record; NR – Australian record;
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

^a split 52.03 (4th leg); with Jack Cartwright (1st leg), Kyle Chalmers (2nd leg), Madison Wilson (3rd leg)
^b split 1:54.80 (3rd leg); with Madison Wilson (1st leg), Kiah Melverton (2nd leg), Ariarne Titmus (4th leg)
^c split 52.08 (1st leg); with Shayna Jack (2nd leg), Meg Harris (3rd leg), Emma McKeon (4th leg)
^d split 1:53.66 (1st leg); with Shayna Jack (2nd leg), Brianna Throssell (3rd leg), Ariarne Titmus (4th leg)
^e split 51.71 (4th leg); with Jack Cartwright (1st leg), Kyle Chalmers (2nd leg), Shayna Jack (3rd leg)

Short course metres

No.	Event	Time	Meet	Location	Date	Status	Ref
1	4x100 m freestyle relay^[a]	3:25.43	2022 World Championships (25 m)	Melbourne, Australia	13 December 2022	Current	^[15]
2	4x200 m freestyle relay^[b]	7:30.87	2022 World Championships (25 m)	Melbourne, Australia	14 December 2022	Current	^[16]
3	4x50 m medley relay^[c]	1:42.35	2022 World Championships (25 m)	Melbourne, Australia	17 December 2022	Current	^[17]

^a split 52.19 (1st leg); with Madison Wilson (2nd leg), Meg Harris (3rd leg), Emma McKeon (4th leg)
^b split 1:52.83 (2nd leg), with Madison Wilson (1st leg), Leah Neale (3rd leg), Lani Pallister (4th leg)
^c split 25.49 (backstroke leg); with Chelsea Hodges (breaststroke leg), Emma McKeon (butterfly leg), Madison Wilson (freestyle leg)

Honours

• In the 2022 Australia Day Honours, O'Callaghan was awarded the Medal of the Order of Australia.^[18]
• Swimming Australia, Olympic Program Swimmer of the Year: 2022^[19] and 2023^[20]
• Australian Institute of Sport Performance Awards Performance of the Year 2023^[21]

See also

• List of Olympic medalists in swimming (women)
• List of multiple Olympic gold medalists at a single Games
• List of junior world records in swimming

References

1. "Mollie O'Callaghan". Australian Olympic Committee. Retrieved 24 July 2021.
2. "Tokyo 2020 Olympics day 1 prelims". SwimSwam. 24 July 2021. Retrieved 23 June 2022.
3. "Mollie O'Callaghan breaks 200 free WJR". SwimSwam. 28 July 2021. Retrieved 23 June 2022.
4. "Aussie women fall after questionable relay decision". SwimSwam. 28 July 2021. Retrieved 23 June 2022.
5. "Mollie O'Callaghan creates history by sweeping the 100m and 200m freestyle titles at the world swimming championships". ABC Sport. 28 July 2023. Retrieved 30 July 2023.
6. Goh, ZK (24 July 2023). "World Aquatics Championships 2023: Australia win both 4x100m freestyle relays with the women setting a new world record". Olympics.com. Retrieved 30 July 2023.
7. Smirnova, Lena (29 July 2023). "World Aquatics Championships 2023: Australia women power to gold by smashing own 4x200m freestyle relay world record". Olympics.com. Retrieved 30 July 2023.
8. de Villiers, Ockert (30 July 2023). "World Aquatics Championships 2023: Australia break world record defending mixed 4x100m freestyle relay title". Olympics.com. Retrieved 30 July 2023.
9. "World Aquatics results – Mollie O'Callaghan". World Aquatics. Retrieved 15 June 2023.
10. "Mollie O'CALLAGHAN Results AQUA Official". World Aquatics. Retrieved 26 July 2023.
11. "World Aquatics results – Mollie O'Callaghan". World Aquatics. Retrieved 15 June 2023.
12. "Mixed Freestyle Relay Final results" (PDF). omegatiming.com. 24 June 2022.
13. "Aussies blast 7:39.29 for new 4x200 WR". SwimSwam. 31 July 2022. Retrieved 5 August 2022.
14. "Australia's Mollie O'Callaghan breaks world record, beating Ariarne Titmus for women's 200m freestyle world title in Japan". Australian Broadcasting Corporation. 26 July 2023. Retrieved 26 July 2023.
15. "Women's 4x100m Freestyle – Final – Results" (PDF). Omega Timing. 13 December 2022. Retrieved 22 December 2022.
16. "Women's 4x200m Freestyle – Final – Results" (PDF). Omega Timing. 14 December 2022. Retrieved 22 December 2022.
17. "Women's 4x50m Medley – Final – Results" (PDF). Omega Timing. 17 December 2022. Retrieved 22 December 2022.
18. "Australia Day Honours List" (PDF). The Governor-General of the Commonwealth of Australia. 26 January 2022. Retrieved 25 January 2022.
19. Hanson, Ian (28 August 2022)."Mollie O'Callaghan named Australia'Olympic Program swimmer of the year". Swimming World. Retrieved 4 September 2022.
20. "Mollie O'Callaghan repeats as Swimming Australia's Olympic Program swimmer of the year". SwimSwam. 10 November 2023. Retrieved 16 November 2023.
21. Commission, Australian Sports Commission; jurisdiction=Commonwealth of Australia; corporateName=Australian Sports. "Swimming makes a big splash at AIS Performance Awards". Australian Sports Commission. Retrieved 29 November 2023.{{cite web}}: CS1 maint: multiple names: authors list (link)

External links

• Mollie O'Callaghan at World Aquatics 
• Mollie O'Callaghan at SwimRankings.net 
• at Swimming Australia (archived) 
• Mollie O'Callaghan at Olympics.com 
• Mollie O'Callaghan at Olympedia 
• Mollie O'Callaghan at the Australian Olympic Committee