| Type | Time | Athlete | Date and place |
|---|---|---|---|
| WR | 47.60 |
| new6 Oct 1985 - Canberra, ACT (AUS) |
| OR | 48.25 |
| new29 Jul 1996 - Atlanta, GA (USA) |
| AF | 49.10 |
| new29 Jul 1996 - Atlanta, GA (USA) |
| AS | 49.81 |
| new11 Sep 1993 - Beijing (CHN) |
| EU | 47.60 |
| new6 Oct 1985 - Canberra, ACT (AUS) |
| NA | 48.70 |
| new16 Sep 2006 - Athens (GRE) |
| OC | 48.63 |
| new29 Jul 1996 - Atlanta, GA (USA) |
| SA | 49.64 |
| new5 Aug 1992 - Barcelona (ESP) |