Elite Performances
16 performances met the MileSplit US Second Team standard.
| HS Girls | Mark | Athlete | Team |
|---|---|---|---|
| 400 Meter Dash Finals | 54.39 | Sarah Billings | Athletics Victoria |
| 400 Meter Dash Finals | 55.40 | Madeleine Attlee | Queensland Athletics |
| 400 Meter Dash Finals | 55.70 | Jemima Russell | Athletics Victoria |
| 400 Meter Dash Finals | 56.15 | Caroline Higham | Athletics Victoria |
| 400 Meter Dash Finals | 56.32 | Alexia Loizou | Athletics Victoria |
| 400 Meter Dash Finals | 56.47 | Tess Kirsopp-col | Athletics Victoria |
| 400 Meter Dash Finals | 57.24 | Lily Bayes | Athletics Victoria |
| 400 Meter Dash Finals | 57.45 | Brooke Jones | Athletics Tasmania |
| 400 Meter Dash Finals | 57.47 | Jade Sanders | Athletics Victoria |
| 400 Meter Dash Finals | 57.65 | Genevieve Brooks | Athletics South Australia |
| 400 Meter Dash Finals | 57.68 | Ashlee Hardisty | Athletics WA |
| HS Boys | Mark | Athlete | Team |
| 400 Meter Dash Finals | 47.57 | Russel Taib | Athletics Tasmania |
| 400 Meter Dash Finals | 47.79 | Louis Stenmark | Athletics NSW |
| 400 Meter Dash Finals | 48.55 | Jack Geary | Queensland Athletics |
| 400 Meter Dash Finals | 49.03 | Lawson Power | Athletics Victoria |
| 400 Meter Dash Finals | 49.26 | Alexander Fitzpa | Athletics NSW |