Heat 1
| Place | Rank | Athlete | Country | Time |
| 1. | 8. | Srihari Nataraj | India | 55.86 |
| 2. | 16. | Arvind Mani | India | 58.09 |
| 3. | 26. | Hassan Al-Obaidan | Qatar | 1:08.62 |
| 4. | 27. | Imaan Ali | Maldives | 1:10.03 |
| 5. | 28. | Haish Hassan Hussain | Maldives | 1:13.65 |
Heat 2
| Place | Rank | Athlete | Country | Time |
| 1. | 4. | Masaki Kaneko | Japan | 54.81 |
| 2. | 6. | Le Nguyen Paul | Vietnam | 55.47 |
| 3. | 11. | Kang Ji-seok | South Korea | 56.24 |
| 4. | 12. | Chuang Mu-Iun | Chinese Taipei | 56.56 |
| 5. | 18. | Kasipat Chogratin | Thailand | 58.55 |
| 6. | 21. | Abdulaziz Al-Obaidly | Qatar | 1:02.28 |
| 7. | 25. | Kawas Behram Aga | Pakistan | 1:05.51 |
Heat 3
| Place | Rank | Athlete | Country | Time |
| 1. | 2. | Ryosuke Irie | Japan | 53.85 |
| 2. | 5. | Lee Ju-ho | South Korea | 55.03 |
| 3. | 10. | Merdan Atayev | Turkmenistan | 56.20 |
| 4. | 13. | Ricky Anggawijaya | Indonesia | 57.33 |
| 5. | 14. | Tern Jian Han | Malaysia | 57.71 |
| 6. | 17. | Lau Shiu Yue | Hong Kong | 58.38 |
| 7. | 23. | Demuul Erdenemunkh | Mongolia | 1:03.80 |
| 8. | 24. | Buyantogtogtokh Boldbaatar | Mongolia | 1:05.43 |
Heat 4
| Place | Rank | Athlete | Country | Time |
| 1. | 1. | Xu Jiayu | China | 53.60 |
| 2. | 3. | Li Guangyuan | China | 54.34 |
| 3. | 7. | I Gede Siman Sudartawa | Indonesia | 55.48 |
| 4. | 9. | Francis Fong | Singapore | 56.09 |
| 5. | 15. | Chang Hou-chi | Chinese Taipei | 57.83 |
| 6. | 19. | Cheung Yau Ming | Hong Kong | 59.14 |
| 7. | 20. | Syed Muhammad Naseeb Tariq | Pakistan | 59.20 |
| 8. | 22. | Yum Cheng Man | Macau | 1:02.63 |
Final
| Place | Athlete | Country | Time |
| 1. | Xu Jiayu | China | 52.34 AGR |
| 2. | Ryosuke Irie | Japan | 52.53 |
| 3. | Lee Ju-ho | South Korea | 54.52 |
| 4. | Masaki Kaneko | Japan | 54.61 |
| 5. | Li Guangyuan | China | 55.01 |
| 6. | La Nguyen Paul | Vietnam | 55.72 |
| 7. | Srihari Nataraj | India | 56.19 |
| 8. | I Gede Siman Sudartawa | Indonesia | 58.82 |