# 2013 Asian Athletics Championships – Men's 400 metres

The men's 400 metres event at the 2013 Asian Athletics Championships was held at the Shree Shiv Chhatrapati Sports Complex. The final took place on 4 July.

## Medalists

| Gold | Silver | Bronze |
| Yousef Masrahi Saudi Arabia | Ali Khamis Khamis Bahrain | Yuzo Kanemaru Japan |

## Results
### Heats

First 3 in each heat (Q) and 4 best performers (q) advanced to the semifinals.
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 1 | Ali Khamis Khamis | Bahrain | 46.43 | Q |
| 2 | 3 | Yuzo Kanemaru | Japan | 46.46 | Q |
| 3 | 1 | Musaeb Abdulrahman Balla | Qatar | 46.59 | Q |
| 4 | 3 | Arokia Rajiv | India | 46.67 | Q |
| 5 | 3 | Ehsan Tahmasebi | Iran | 46.96 | Q |
| 6 | 2 | Yousef Masrahi | Saudi Arabia | 46.99 | Q |
| 7 | 1 | Ismail Al-Sabiani | Saudi Arabia | 47.02 | Q |
| 8 | 2 | Kunhu Muhammed Puthanpurakkal | India | 47.04 | Q |
| 9 | 1 | Chanaka Dilhan Aloka | Sri Lanka | 47.10 | q |
| 10 | 3 | Hassan Aman Salmeen | Qatar | 47.24 | q |
| 11 | 2 | Alejan Edgardo Jr. | Philippines | 47.40 | Q |
| 12 | 2 | Anjana Madushan Gunarathna | Sri Lanka | 47.43 | q |
| 13 | 4 | Saud Abdul Karim | United Arab Emirates | 47.67 | Q |
| 14 | 1 | Archand Christian Bagsit | Philippines | 47.87 | q |
| 15 | 4 | Kazuya Watanabe | Japan | 48.04 | Q |
| 16 | 3 | Aleksandr Pronzhenko | Tajikistan | 48.23 | |
| 17 | 4 | Sajjad Hashemi | Iran | 48.27 | Q |
| 18 | 4 | Neeraj Panwar | India | 48.51 | |
| 19 | 4 | Asad Iqbal | Pakistan | 48.85 | |
| 20 | 1 | Arnon Jaiaree | Thailand | 48.87 | |
| 21 | 2 | Mohsen Ahmad | Lebanon | 48.90 | |
| 22 | 1 | Anchois Aron | Malaysia | 48.96 | |
| 23 | 4 | Thanakorn Namee | Thailand | 49.09 | |
| 24 | 2 | Choi Ho Sing | Hong Kong | 49.17 | |
| 25 | 3 | Ak Hafiy Tajuddin Rositi | Brunei | 49.42 | |
| 26 | 4 | Leung King Hung | Hong Kong | 49.49 | |
| 27 | 2 | Sundui Munkhsaikhan | Mongolia | 52.48 | |
| 28 | 3 | Salim Saleh Al-Hekr | Yemen | 53.90 | |
| 29 | 2 | Muhammes Abdullah Munassar | Yemen | 54.90 | |
| 30 | 3 | Tang Chan Tong | Macau | 58.64 | |
| | 1 | Naser Al-Semaeil | Kuwait | DNS | |

### Semi-finals

First 3 in each heat (Q) and 2 best performers (q) advanced to the final.
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 1 | Ali Khamis Khamis | Bahrain | 46.35 | Q |
| 2 | 2 | Yousef Masrahi | Saudi Arabia | 46.42 | Q |
| 3 | 1 | Musaeb Abdulrahman Balla | Qatar | 46.44 | Q |
| 4 | 2 | Yuzo Kanemaru | Japan | 46.49 | Q |
| 5 | 2 | Arokia Rajiv | India | 46.83 | Q |
| 6 | 2 | Kunhu Muhammed Puthanpurakkal | India | 47.03 | q |
| 7 | 1 | Saud Abdul Karim | United Arab Emirates | 47.05 | Q |
| 8 | 1 | Sajjad Hashemi | Iran | 47.06 | q |
| 9 | 1 | Ehsan Tahmasebi | Iran | 47.14 | |
| 10 | 1 | Chanaka Dilhan Aloka | Sri Lanka | 47.39 | |
| 11 | 2 | Anjana Madushan Gunarathna | Sri Lanka | 47.70 | |
| 12 | 1 | Kazuya Watanabe | Japan | 47.80 | |
| 13 | 1 | Archand Christian Bagsit | Philippines | 47.93 | |
| 14 | 2 | Alejan Edgardo Jr. | Philippines | 48.18 | |
| | 2 | Ismail Al-Sabiani | Saudi Arabia | DNF | |
| | 2 | Hassan Aman Salmeen | Qatar | DNS | |

### Final

| Rank | Name | Nationality | Time |
| | Yousef Masrahi | Saudi Arabia | 45.08 |
| | Ali Khamis Khamis | Bahrain | 45.65 |
| | Yuzo Kanemaru | Japan | 45.95 |
| 4 | Musaeb Abdulrahman Balla | Qatar | 46.45 |
| 5 | Kunhu Muhammed Puthanpurakkal | India | 46.61 |
| 6 | Arokia Rajiv | India | 46.63 |
| 7 | Saud Abdul Karim | United Arab Emirates | 47.15 |
| | Sajjad Hashemi | Iran | DNS |