|Full name||Mollie Grace O’Callaghan|
|Born||2 April 2004|
|Coached by||Dean Boxall|
Mollie Grace O'Callaghan swimmer. She competed in the 2020 Summer Olympics. O'Callaghan swam on the first night of racing in the heats of the women's 4 × 100 m freestyle. She ended up winning 2 gold medals and a bronze medal, all from heat swims. She attends St. Peter’s Western swim club.(born 2 April 2004) is an Australian
2020 Tokyo Olympics
Mollie O'Callaghan swam for the Australian team in the preliminaries of all three women's relays at the 2020 Summer Olympics at 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.
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. 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.
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.
Results in major championships
|Meet||100 free||200 free||50 back||100 back||4×100 free||4×200 free||4×100 medley||4×100 Mixed free||4×100 Mixed medley|
Long course metres
|1||4x100 m mixed freestyle relay[a]||3:19.38||2022 World Aquatics Championships||Budapest, Hungary||24 June 2022||Current|||
|2||4x200 m freestyle relay[b]||7:39.29||2022 Commonwealth Games||Birmingham, United Kingdom||31 July 2022||Current|||
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)
- List of Olympic medalists in swimming (women)
- List of multiple Olympic gold medalists at a single Games
- List of junior world records in swimming
- "Mollie O'Callaghan". Australian Olympic Committee. Retrieved 24 July 2021.
- "Swimming O'CALLAGHAN Mollie - Tokyo 2020 Olympics". Olympics.com/tokyo-2020/. Tokyo Organising Committee of the Olympic and Paralympic Games. Archived from the original on 18 August 2021. Retrieved 24 July 2021.
- "Tokyo 2020 Olympics day 1 prelims". SwimSwam. 24 July 2021. Retrieved 23 June 2022.
- "Mollie O'Callaghan breaks 200 free WJR". SwimSwam. 28 July 2021. Retrieved 23 June 2022.
- "Aussie women fall after questionable relay decision". SwimSwam. 28 July 2021. Retrieved 23 June 2022.
- "Mixed Freestyle Relay Final results" (PDF). omegatiming.com. 24 June 2022.
- "Aussies blast 7:39.29 for new 4x200 WR". SwimSwam. 31 July 2022. Retrieved 5 August 2022.
- "Australia Day Honours List" (PDF). The Governor-General of the Commonwealth of Australia. 26 January 2022. Retrieved 25 January 2022.