| Incheon Asiad Main Stadium - Track. Start time: 19:20 |   
| Final | time |   | L | React. | Birth | bib |  | 1. Oluwakemi Mujidat Adekoya |  BRN | 51.59s |   | 4 | 0.180 | 16 Jan 1993 | 1003 |  | 2. Thi Lan Quach |  VIE | 52.06s | PB | 7 | 0.322 | 18 Oct 1995 | 1272 |  | 3. Poovamma Raju Machettira |  IND | 52.36s |   | 5 | 0.190 | 05 Jun 1990 | 1073 |  | 4. Rasnayaka Mudiyanselage C. S. R. |  SRI | 52.47s | SB | 6 | 0.216 | 20 Jun 1987 | 1213 |  | 5. Seika Aoyama |  JPN | 53.20s |   | 3 | 0.253 | 01 May 1996 | 1106 |  | 6. Kaur Mandeep |  IND | 53.38s |   | 9 | 0.226 | 19 Apr 1988 | 1074 |  | 7. Thi Huyen Nguyen |  VIE | 53.79s |   | 2 | 0.194 | 19 May 1993 | 1273 |  | 8. Yuliya Rakhmanova |  KAZ | 54.41s |   | 8 | 0.332 | 25 Oct 1991 | 1130 |   
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|  Records |  | WR | 47.60s | Marita Koch (GDR) | Canberra, ACT (AUS) |   | 06 Oct 1985 |  | AS | 49.81s | Ma Yuqin (CHN) | Beijing (CHN) |   | 11 Sep 1993 |  | GR | 51.11s | Oluwakemi Mujidat Adekoya (BRN) | Incheon (KOR) | Asian Games | 27 Sep 2014 |   
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 |   |  | First 2 and Best 2 progress to the Final. 3 Heats, 21 Athletes. |   Heat 1 20:20 |   
| Ranking | time |   | L | React. | Birth | bib |  | 1. Rasnayaka Mudiyanselage C. S. R. |  SRI | 52.78s |   | 5 | 0.186 | 20 Jun 1987 | 1213 |  | 2. Yuliya Rakhmanova |  KAZ | 54.21s |   | 3 | 0.304 | 25 Oct 1991 | 1130 |  | 3. Siti Nur Afiqah Binti Abdul Razak |  MAS | 54.47s |   | 4 | 0.194 | 28 Mar 1998 | 1184 |  | 4. Jingwen Chen |  CHN | 54.93s |   | 7 | 0.208 | 08 Feb 1990 | 1018 |  | 5. Sera OH |  KOR | 55.92s |   | 2 | 0.187 | 30 Aug 1987 | 1152 |  | 6. Ka Man Leong |  MAC | 57.07s | PB | 6 | 0.161 | 07 Jan 1990 | 1182 |  | 7. Chui Ling Goh |  SIN | 58.56s |   | 8 | 0.170 | 27 Nov 1992 | 1209 |   
| Ranking | time |   | L | React. | Birth | bib |  | 1. Poovamma Raju Machettira |  IND | 52.17s |   | 6 | 0.211 | 05 Jun 1990 | 1073 |  | 2. Thi Lan Quach |  VIE | 52.57s | PB | 7 | 0.301 | 18 Oct 1995 | 1272 |  | 3. Seika Aoyama |  JPN | 52.99s | PB | 3 | 0.223 | 01 May 1996 | 1106 |  | 4. Elina Mikhina |  KAZ | 53.94s |   | 2 | 0.234 | 16 Jul 1994 | 1129 |  | 5. Danah Hussein A. Al Khafaji |  IRQ | 54.78s |   | 5 | 0.207 | 03 Jan 1986 | 1103 |  | 6. Atchima Eng Chuan |  THA | 55.18s |   | 4 | 0.168 | 10 Feb 1990 | 1221 |  | 7. T Piriyah |  SIN | 58.73s |   | 8 | 0.166 | 10 Jun 1992 | 1208 |   
| Ranking | time |   | L | React. | Birth | bib |  | 1. Oluwakemi Mujidat Adekoya |  BRN | 51.11s | GR | 8 | 0.167 | 16 Jan 1993 | 1003 |  | 2. Kaur Mandeep |  IND | 53.06s | SB | 2 | 0.197 | 19 Apr 1988 | 1074 |  | 3. Thi Huyen Nguyen |  VIE | 53.19s | SB | 6 | 0.194 | 19 May 1993 | 1273 |  | 4. Nanako Matsumoto |  JPN | 53.65s | PB | 3 | 0.140 | 03 Sep 1996 | 1107 |  | 5. Chong Cheng |  CHN | 54.38s |   | 7 | 0.194 | 22 Sep 1992 | 1019 |  | 6. Jihyun Min |  KOR | 55.91s |   | 4 | 0.198 | 15 Jul 1988 | 1151 |  | 7. Dil Maya Karki |  NEP | 1:00.30 | PB | 5 | 0.192 | 05 Oct 1988 | 1191 |   
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