Boys
| Age | Name | Time | Date |
| 7 & U | N. Duncan | 1:30.00 | 08/02/2003 |
| 8 | J. Lovell | 1:19.20 | 26/01/1980 |
| 9 | T. Dodd | 1:14.96 | 06/02/1993 |
| 10 | T. Dodd | 1:09.63 | 05/02/1994 |
| 11 | T. Dodd | 1:07.56 | 04/02/1995 |
| 12 | T. Dodd | 1:04.44 | 17/02/1996 |
| 13 | T. Dodd | 59.29 | 01/02/1997 |
| 14 | T. Dodd | 57.57 | 07/02/1998 |
| 15 | T. LaForest | 57.96 | 05/02/2000 |
| 16/17 | J. Kerr | 54.20 | 18/02/2023 |
| Open | J. Kerr | 54.20 | 18/02/2023 |
Girls
| Age | Name | Time | Date |
| 7 & U | E. Graham | 1:20.40 | 12/11/1988 |
| 8 | K. Daley | 1:26.10 | 16/11/1985 |
| 9 | K. Allsop | 1:18.63 | 15/01/2011 |
| 10 | E. Graham | 1:13.84 | 06/02/1993 |
| 11 | E. Graham | 1:08.41 | 05/02/1994 |
| 12 | P. Gamme | 1:07.10 | 31/01/1983 |
| 13 | E. Graham | 1:03.11 | 03/02/1996 |
| 14 | L. Mcpherson | 1:01.12 | 18/02/2023 |
| 15 | E. Graham | 1:01.29 | 07/02/1998 |
| 16/17 | E. Graham | 58.28 | 12/02/2000 |
| Open | E. Graham | 58.28 | 03/12/2022 |