| Long Course |
|
Women's 400m Medley |
|
|
Open |
| WR |
World Record |
4:26.36 |
Katinka Hosszu |
6 Aug 2016 |
2016 31st Olympic Games |
| CO |
Commonwealth Record |
4:29.01 |
Summer McIntosh |
29 Jul 2022 |
2022 22nd Commonwealth Games |
| AUO |
Australian Open |
4:29.45 |
Stephanie Rice |
10 Aug 2008 |
2008 Olympic Games |
| AUAC |
Australian All Comers |
4:31.46 |
Stephanie Rice |
22 Mar 2008 |
2008 Telstra Australian Swimming Championships |
| ACW |
WA All Comers |
4:36.66 |
Yan Chen |
12 Jan 1998 |
1998 FINA 8th World Swimming Championships |
| WAT |
WA All Time |
4:35.26 |
Blair Evans |
7 Apr 2016 |
2016 Hancock Prospecting Australian Open Championships |
| RE |
Residential |
4:38.59 |
Blair Evans |
19 Dec 2015 |
2015/16 SunSmart State Open & Age LC Championships |
| CAT |
WA Country All Time |
5:07.68 |
Toni Ciffolilli |
21 Apr 1996 |
1996 Telstra Australian Open Championships and Olympic Selection Trials |
| CR |
Country Residential |
5:08.38 |
Toni Ciffolilli |
7 Jan 1995 |
1995 State Age 13-17yrs Championships |
