| Date |
Time |
Competitor |
Meet |
| 13 Nov 2011 |
51.89 |
Georgia W |
2011 Metro 7-10 Competition |
| 6 Nov 2011 |
52.48 |
Georgia W |
2011 NvE 7-10 Time Trials |
| 13 Nov 2010 |
54.00 |
Merryn H |
2010 Metro 7-10 Competition |
| 9 Nov 2008 |
54.84 |
Samantha S |
2008 North vs East |
| 28 Oct 2007 |
56.09 |
Jasmine C |
2007 North vs East |
