| Age | Athlete | Result | Date | Event | |
| U/6 | F | S Keong | 1:52.41 | 8 March 2002 | 400m |
| U/6 | M | Shannan Burrell | 1:59.90 | 9 February 2003 | 400m |
| U/7 | F | T Moylan | 1:30.47 | 16 March 1990 | 400m |
| U/7 | M | S Guildford | 1:24.53 | 16 March 1990 | 400m |
| U/8 | M | N Challender | 1:14.00 | 13 February 1982 | 400m |
| U/8 | F | K Woolston | 1:26.00 | 30 October 1982 | 400m |
| U/8 | M | Chrysler McLoughlin | 2:43.70 | 27 September 2019 | 700m |
| U/6 | M | M Sheumack | 3:43.16 | 18 January 2002 | 800m |
| U/7 | M | B Dagan | 3:24.07 | 15 March 2002 | 800m |
| U/8 | F | M Bourke | 3:10.14 | 14 March 1987 | 800m |
| U/11 | M | Timothy Yee | 10.01 | 12 March 1999 | 60m H |
| U/11 | F | N Van Zyl | 9.99 | 26 February 1993 | 60m H |
| U/12 | M | Matt Axford | 9.75 | 6 March 1992 | 60m H |
| U/12 | F | Josephine Kropp | 10.70 | 16 March 2018 | 60m H |
