The men's 400 metres event at the 2003 Asian Athletics Championships was held in Manila, Philippines on September 20–21.
Medalists GoldSilverBronzeFawzi Al-ShammariHamdan Odha Al-BishiYuki Yamaguchi
Results Heats Rank Heat Name Nationality Time Notes 1 1 Hamdan Odha Al-Bishi 46.15 Q 2 1 Yuki Yamaguchi 46.37 Q 3 3 Sugath Thilakaratne 46.38 Q 4 2 Fawzi Al-Shammari 46.50 Q 5 2 Rohan Pradeep Kumara 46.72 Q 6 1 Jimar Aing 46.82 q, PB 7 1 Manoj Lal 46.87 q 7 3 Mitsuhiro Sato 46.87 Q 9 3 Narong Nilploy 46.95 SB 10 2 Mohammad Akefian 47.12 11 2 Denis Rypakov 47.55 12 3 Ahmad Sakeh Sumarsono 48.67 13 2 Banjong Lachua 49.05 14 1 Saeed Al-Adhreai 49.27 15 2 Yan Karubaba 50.14 SB 16 3 Ankhbayar Tumur 52.18 PB 17 2 Abdullah Ibrahim 53.63 PB
Final Rank Name Nationality Time Notes Fawzi Al-Shammari 45.16 Hamdan Odha Al-Bishi 45.39 Yuki Yamaguchi 46.18 4 Sugath Thilakaratne 46.21 5 Manoj Lal 46.77 6 Rohan Pradeep Kumara 46.92 7 Jimar Aing 46.93 8 Mitsuhiro Sato 47.40
References