| Rank | | Race No | Name | Nation | Club | Category | Time | Behind | Speed | |
| 1 |  | 8 | Lavinia Haitope | NAM | | W20-39 | 1:14:41 | | 3:33 min/km | |
| 2 |  | 50 | Irvette Van Zyl | RSA | HOLLYWOOD AC CGA | W20-39 | 1:15:16 | + 36 | 3:35 min/km | |
| 3 | | 116 | Karabo Mailula | RSA | BOXER AC | W20-39 | 1:15:46 | + 1:05 | 3:36 min/km | |
| 4 | | 28 | Likeleli Majara | LES | | W20-39 | 1:19:19 | + 4:39 | 3:46 min/km | |
| 5 |  | 119 | Melan Chepleting Misikhu | KEN | NEDBANK RUNNING CLUB INTERNATIONAL | W20-39 | 1:19:52 | + 5:12 | 3:48 min/km | |
| 6 |  | 134 | Mildred Chepkemei Kinyanja | KEN | NEDBANK RUNNING CLUB INTERNATIONAL | W20-39 | 1:20:30 | + 5:50 | 3:49 min/km | |
| 7 |  | 34 | Maitumelo Gotswakgosi | BOT | | W20-39 | 1:21:49 | + 7:09 | 3:53 min/km | |
| 8 |  | 147 | Mary Njambi Njuguna | KEN | NEDBANK RUNNING CLUB INTERNATIONAL | W20-39 | 1:22:25 | + 7:44 | 3:55 min/km | |
| 9 |  | 42 | Gladys Watare Wachuka | KEN | SUPER EAGLES ATHLETICS CLUB | W20-39 | 1:23:21 | + 8:41 | 3:57 min/km | |
| 10 |  | 77 | Lina Jepkemoi Kaino | KEN | NEDBANK RUNNING CLUB INTERNATIONAL | W20-39 | 1:23:34 | + 8:54 | 3:58 min/km | |