Boys
| Age | Name | Time | Date |
| 7 & U | J. Swane | 50.00 | 18/03/1978 |
| 8 | M. Clues | 44.30 | 19/12/1981 |
| 9 | S. Miller | 40.50 | 22/12/1984 |
| 10 | J. Shippen | 39.09 | 17/01/2026 |
| 11 | I. Lisney | 37.44 | 26/11/1994 |
| 12 | H. Ward | 33.85 | 15/02/2025 |
| 13 | H. Ward | 32.37 | 17/01/2026 |
| 14 | T. Dodd | 31.83 | 22/11/1997 |
| 15 | K. Thomson | 31.44 | 18/02/2023 |
| 16/17 | J. Kerr | 28.15 | 18/02/2023 |
| Open | C. Fenwick-Kearns | 26.85 | 17/01/2026 |
Girls
| Age | Name | Time | Date |
| 7 & U | E. Graham | 48.82 | 16/12/1989 |
| 8 | J.Botha | 45.47 | 15/02/2025 |
| 9 | J. Botha | 38.94 | 17/01/2026 |
| 10 | S. Nicol | 41.80 | 18/02/2023 |
| 11 | J Heinrich | 39.35 | 24/11/2001 |
| 12 | K. Bischkopf | 34.92 | 22/11/1997 |
| 13 | R. Gonzalo | 33.16 | 18/02/2023 |
| 14 | L. Mcpherson | 33.74 | 18/02/2023 |
| 15 | D. Kralka | 33.39 | 18/02/2023 |
| 16/17 | D. Kralka | 33.10 | 17/02/2024 |
| Open | D. Kralka | 33.10 | 17/02/2024 |