CURRENT AS OF 3/26/2026
INDOOR 400 METER DASH
| TOP 10 PERFORMANCES | ||||
| By athlete’s PR each season | ||||
| 1. | 57.22 FAT | Mackenzie Michael | 2020 | |
| 2. | 57.92 FAT | Kloe Nissen | 2025 | |
| 3. | 59.87 FAT | Katherine Tomlyanovich | 2026 | |
| 4. | 1:00.19 FAT | Shawn Shaddox | 2006 | |
| 1:00.24 * | Mackenzie Michael | 2019 | ||
| 5. | 1:00.26 FAT | Brianna King | 2012 | |
| 6. | 1:00.32 FAT | Liz Bradfield | 2004 | |
| 7. | 1:00.87 FAT | Auriona Kimbrough | 2019 | |
| 8. | 1:01.15 FAT | Josee Simonson | 2024 | |
| 9. | 1:01.18 FAT | Paige Wilson | 2024 | |
| 10. | 1:01.49 FAT | Sydney Stokes | 2020 |
* — Converted from Manual Time to Fully Automatic (.24 for races 300 meters and below, .14 for races above)
FAT — Fully Automatic Time