| HEAT 1 | Photo Finish | WIND : 0 m/s |
| Pos |
Lane |
Bib |
Name |
NOC |
Time |
|
| 1 | 8 | 131 | JEANY NURAINI AMELIA AGRETA | INA | 12.11 s | |
| 2 | 3 | 226 | AZREEN NABILA BINTI ALIAS | MAS | 12.33 s | |
| 3 | 6 | 438 | JIRAWAN CHUTRAKUN | THA | 12.44 s | |
| 4 | 2 | 479 | TO THI NGA | VIE | 12.47 s | |
| 5 | 5 | 332 | CUYOM, ELIZA A. | PHI | 12.48 s | |
| 6 | 4 | 376 | ELIZABETH-ANN TAN SHEE RU | SGP | 12.84 s | |
| 7 | 7 | 183 | BIEW CHANTHAMOUNGHOUN | LAO | 13.85 s | |
| HEAT 2 | Photo Finish | WIND : -0.6 m/s |
| Pos |
Lane |
Bib |
Name |
NOC |
Time |
|
| 1 | 7 | 133 | ERNA NURYANTI | INA | 12.35 s | |
| 2 | 8 | 379 | BERNICE LIEW YEE LING | SGP | 12.48 s | |
| 3 | 6 | 230 | IKMA SYAFFIERA DURIS | MAS | 12.62 s | |
| 4 | 3 | 335 | LUMAPAS, JESSEL D. | PHI | 12.67 s | |
| 5 | 4 | 439 | PHAETHONG WANNAKHOT | THA | 12.71 s | |
| 6 | 5 | 480 | PHAN VO NHU Y | VIE | 13.09 s | |
| 7 | 2 | 186 | POM LOMANY | LAO | 13.84 s | |
