# 2003 Asian Athletics Championships – Men's 100 metres

The men's 100 metres event at the 2003 Asian Athletics Championships was held in Manila, Philippines on September 20–21.

## Medalists

| Gold | Silver | Bronze |
| Chen Haijian China | Gennadiy Chernovol Kazakhstan | Salem Al-Yami Saudi Arabia |

## Results
### Heats

Wind: Heat 1: 0.0 m/s, Heat 2: +1.0 m/s, Heat 3: -0.1 m/s, Heat 4: +0.3 m/s, Heat 5: -0.1 m/s
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 2 | Gennadiy Chernovol | Kazakhstan | 10.34 | Q |
| 2 | 4 | Shingo Kawabata | Japan | 10.42 | Q |
| 2 | 5 | Shen Yunbao | China | 10.42 | Q |
| 4 | 2 | Adel Mohamed Al-Farhan | Bahrain | 10.46 | Q |
| 5 | 4 | Abdolghafar Saghar | Iran | 10.50 | Q |
| 6 | 2 | Anil Kumar | India | 10.51 | Q |
| 7 | 3 | Chen Haijian | China | 10.52 | Q |
| 7 | 5 | Sittichai Suwonprateep | Thailand | 10.52 | Q |
| 9 | 2 | Khalifa Al-Saker | Saudi Arabia | 10.55 | Q |
| 9 | 5 | Sanjay Ghosh | India | 10.55 | Q |
| 11 | 1 | Salem Al-Yami | Saudi Arabia | 10.56 | Q |
| 12 | 2 | Nazmizan Mohamad | Malaysia | 10.57 | q |
| 13 | 3 | Kazuhiro Tamura | Japan | 10.58 | Q |
| 14 | 4 | Hamood Al-Dalhami | Oman | 10.63 | Q, SB |
| 15 | 5 | Liu Yuan-Kai | Chinese Taipei | 10.64 | Q |
| 16 | 4 | Kang Tae-Seok | South Korea | 10.66 | Q |
| 17 | 1 | Sethuwa Nimal Hemantha | Sri Lanka | 10.68 | Q |
| 18 | 2 | Umaglia Kancanangai Shyam | Singapore | 10.72 | q |
| 18 | 3 | Chiang Wai Hung | Hong Kong | 10.72 | Q |
| 20 | 3 | Juma Mubarak Al-Jabri | Oman | 10.76 | Q, SB |
| 21 | 1 | Tsai Meng-Lin | Chinese Taipei | 10.79 | Q |
| 21 | 4 | To Wai Lok | Hong Kong | 10.79 | q |
| 21 | 3 | Vissanu Sophanich | Thailand | 10.79 | q |
| 24 | 3 | Nguyen Xuan Viet | Vietnam | 10.87 | PB |
| 25 | 1 | Poh Seng Song | Singapore | 10.90 | Q |
| 26 | 2 | Umanga Surendra | Sri Lanka | 11.00 | SB |
| 27 | 1 | Alex Gabito | Philippines | 11.03 | SB |
| 27 | 5 | Arnold Villarube | Philippines | 11.03 | SB |
| 29 | 4 | Au Chi Kun | Macau | 11.27 | SB |
| 30 | 4 | Sykham Silapaseuth | Laos | 11.52 | PB |
| 31 | 5 | Chaleunsook Adoudomphonh | Laos | 11.56 | |
| 32 | 3 | Umar Ibrahim | Maldives | 11.95 | PB |
| 33 | 4 | Mohamed Abu Abdallah | Bangladesh | 16.55 | SB |
| | 2 | Mohamed Masudul Karim | Bangladesh | DNS | |
| | 3 | Ali Khamis Al-Neyadi | United Arab Emirates | DNS | |
| | 5 | Chhay Lun | Cambodia | DNS | |
| | 5 | Salem Al-Qaifi | Yemen | DNS | |

### Quarterfinals

Wind: Heat 1: -0.3 m/s, Heat 2: +0.2 m/s, Heat 3: -0.1 m/s
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 1 | Gennadiy Chernovol | Kazakhstan | 10.32 | Q |
| 2 | 1 | Adel Mohamed Al-Farhan | Bahrain | 10.39 | Q |
| 3 | 1 | Abdolghafar Saghar | Iran | 10.39 | Q |
| 4 | 2 | Salem Al-Yami | Saudi Arabia | 10.42 | Q |
| 4 | 3 | Chen Haijian | China | 10.42 | Q |
| 6 | 3 | Shingo Kawabata | Japan | 10.43 | Q |
| 7 | 2 | Shen Yunbao | China | 10.46 | Q |
| 8 | 3 | Khalifa Al-Saker | Saudi Arabia | 10.50 | Q |
| 9 | 1 | Sanjay Ghosh | India | 10.52 | Q |
| 10 | 3 | Kazuhiro Tamura | Japan | 10.53 | Q |
| 11 | 2 | Anil Kumar | India | 10.55 | Q |
| 12 | 3 | Nazmizan Mohamad | Malaysia | 10.60 | Q |
| 13 | 1 | Kang Tae-Seok | South Korea | 10.62 | Q |
| 14 | 1 | Hamood Al-Dalhami | Oman | 10.65 | q |
| 15 | 2 | Sittichai Suwonprateep | Thailand | 10.66 | Q |
| 16 | 2 | Liu Yuan-Kai | Chinese Taipei | 10.67 | Q |
| 17 | 2 | Chiang Wai Hung | Hong Kong | 10.72 | |
| 18 | 3 | Sethuwa Nimal Hemantha | Sri Lanka | 10.74 | |
| 19 | 1 | To Wai Lok | Hong Kong | 10.75 | |
| 20 | 3 | Umaglia Kancanangai Shyam | Singapore | 10.80 | |
| 21 | 3 | Tsai Meng-Lin | Chinese Taipei | 10.80 | |
| 22 | 1 | Juma Mubarak Al-Jabri | Oman | 10.86 | |
| 22 | 2 | Poh Seng Song | Singapore | 10.86 | |
| 24 | 2 | Vissanu Sophanich | Thailand | 11.11 | |

### Semifinals

Wind: Heat 1: +0.8 m/s, Heat 2: 0.0 m/s
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 1 | Gennadiy Chernovol | Kazakhstan | 10.30 | Q |
| 2 | 1 | Adel Mohamed Al-Farhan | Bahrain | 10.37 | Q, PB |
| 2 | 2 | Salem Al-Yami | Saudi Arabia | 10.37 | Q |
| 4 | 1 | Shingo Kawabata | Japan | 10.38 | Q |
| 5 | 2 | Chen Haijian | China | 10.42 | Q |
| 6 | 2 | Abdolghafar Saghar | Iran | 10.45 | Q |
| 7 | 2 | Shen Yunbao | China | 10.50 | Q |
| 8 | 1 | Sittichai Suwonprateep | Thailand | 10.51 | Q |
| 9 | 1 | Anil Kumar | India | 10.59 | |
| 10 | 2 | Kazuhiro Tamura | Japan | 10.60 | |
| 11 | 1 | Nazmizan Mohamad | Malaysia | 10.64 | |
| 12 | 2 | Kang Tae-Seok | South Korea | 10.70 | |
| 13 | 1 | Liu Yuan-Kai | Chinese Taipei | 10.73 | |
| 14 | 2 | Sanjay Ghosh | India | 10.74 | |
| 15 | 2 | Hamood Al-Dalhami | Oman | 10.78 | |
| 16 | 1 | Khalifa Al-Saker | Saudi Arabia | 25.14 | |

### Final

Wind: 0.0 m/s
| Rank | Name | Nationality | Time | Notes |
| | Chen Haijian | China | 10.25 | |
| | Gennadiy Chernovol | Kazakhstan | 10.27 | SB |
| | Salem Al-Yami | Saudi Arabia | 10.28 | |
| 4 | Shingo Kawabata | Japan | 10.42 | |
| 5 | Adel Mohamed Al-Farhan | Bahrain | 10.43 | |
| 6 | Sittichai Suwonprateep | Thailand | 10.48 | |
| 7 | Shen Yunbao | China | 10.51 | |
| 8 | Abdolghafar Saghar | Iran | 10.55 | |