| Date |
Time |
Competitor |
Meet |
| 21 Oct 2018 |
51.65 |
Madeleine H |
2018 Bunbury Open Carnival |
| 3 Mar 2012 |
54.84 |
Ella B |
CP2012 |
| 17 Oct 2010 |
57.92 |
Jasmine H |
Bunbury Open 2010 |
| 16 Nov 2008 |
1:01.52 |
Layla C |
2008 Region 1 Carnival |
| 19 Oct 2008 |
1:01.62 |
Kristen S |
34th South West Open Carnival |
