| 1) | Obeng-Akrofi, Akua | Columbia | 54.04 (01/27-01/28) | 54.04 (01/27-01/28) | 54.10 (02/25-02/26) | 54.10 (02/25-02/26) | 54.51 (02/03-02/04) | 54.51 (02/03-02/04) | 54.82 (02/25-02/26) | 54.82 (02/25-02/26) |
| 2) | Hawkins, Birexus | Houston | 54.04 (02/24-02/25) | 54.04 (02/24-02/25) | 54.69 (02/24-02/25) | 54.69 (02/24-02/25) | 56.15 (02/03-02/04) | 56.15 (02/03-02/04) | 56.42 (01/21) | 56.42 (01/21) |