The men's 100 metre breaststroke swimming competition at the 2002 Asian Games in Busan was held on 30 September at the Sajik Swimming Pool.
Rank | Heat | Athlete | Time | Notes | 1 | 3 | {{flagIOC2athlete|Kosuke Kitajima|JPN|2002 Asian Games}} | 1:00.71 | swimming}} |
2 | 2 | {{flagIOC2athlete|Yoshihisa Yamaguchi|JPN|2002 Asian Games}} | 1:03.84 |
3 | 1 | {{flagIOC2athlete|Zeng Qiliang|CHN|2002 Asian Games}} | 1:03.87 |
4 | 3 | {{flagIOC2athlete|Chen Cho-yi|TPE|2002 Asian Games}} | 1:04.08 |
5 | 1 | {{flagIOC2athlete|Cheng Hao|CHN|2002 Asian Games}} | 1:04.20 |
6 | 3 | {{flagIOC2athlete|Elvin Chia|MAS|2002 Asian Games}} | 1:04.51 |
7 | 2 | {{flagIOC2athlete|Yang Shang-hsuan|TPE|2002 Asian Games}} | 1:04.90 |
8 | 2 | {{flagIOC2athlete|Tam Chi Kin|HKG|2002 Asian Games}} | 1:05.04 |
9 | 3 | {{flagIOC2athlete|Ahmed Al-Kudmani|KSA|2002 Asian Games}} | 1:05.11 |
10 | 2 | {{flagIOC2athlete|Raphael Matthew Chua|PHI|2002 Asian Games}} | 1:05.25 |
11 | 3 | {{flagIOC2athlete|Yevgeniy Ryzhkov|KAZ|2002 Asian Games}} | 1:06.31 |
11 | 1 | {{flagIOC2athlete|Son Sung-uk|KOR|2002 Asian Games}} | 1:06.31 |
13 | 2 | {{flagIOC2athlete|Ryu Seung-hyun|KOR|2002 Asian Games}} | 1:06.44 |
14 | 1 | {{flagIOC2athlete|Trần Xuân Hiền|VIE|2002 Asian Games}} | 1:08.05 |
15 | 2 | {{flagIOC2athlete|Wael Ghassan|QAT|2002 Asian Games}} | 1:09.90 |
16 | 1 | {{flagIOC2athlete|Ma Chan Wai|MAC|2002 Asian Games}} | 1:10.08 |
17 | 3 | {{flagIOC2athlete|Niaz Ali|BAN|2002 Asian Games}} | 1:11.27 |
18 | 1 | {{flagIOC2athlete|Omar Daaboul|LBN|2002 Asian Games}} | 1:14.48 |
19 | 3 | {{flagIOC2athlete|Alice Shrestha|NEP|2002 Asian Games}} | 1:14.54 |
20 | 1 | {{flagIOC2athlete|Alaa Feshtok|QAT|2002 Asian Games}} | 1:15.50 |
21 | 2 | {{flagIOC2athlete|Ganboldyn Urnultsaikhan|MGL|2002 Asian Games}} | 1:16.14 |
22 | 3 | {{flagIOC2athlete|Wasseim Surey|PLE|2002 Asian Games}} | 1:16.40 |
23 | 2 | {{flagIOC2athlete|Khurleegiin Enkhmandakh|MGL|2002 Asian Games}} | 1:16.69 |
24 | 1 | {{flagIOC2athlete|Imran Abdul Rahman|MDV|2002 Asian Games}} | 1:31.64 |
Rank | Athlete | Time | Notes | 1 | {{flagIOC2athlete|Raphael Matthew Chua|PHI|2002 Asian Games}} | 1:06.11 |
2 | {{flagIOC2athlete|Yevgeniy Ryzhkov|KAZ|2002 Asian Games}} | 1:06.24 |
3 | {{flagIOC2athlete|Son Sung-uk|KOR|2002 Asian Games}} | 1:06.33 |
4 | {{flagIOC2athlete|Ahmed Al-Kudmani|KSA|2002 Asian Games}} | 1:06.41 |
5 | {{flagIOC2athlete|Ryu Seung-hyun|KOR|2002 Asian Games}} | 1:06.54 |
6 | {{flagIOC2athlete|Trần Xuân Hiền|VIE|2002 Asian Games}} | 1:07.16 |
7 | {{flagIOC2athlete|Ma Chan Wai|MAC|2002 Asian Games}} | 1:08.79 |
8 | {{flagIOC2athlete|Wael Ghassan|QAT|2002 Asian Games}} | 1:10.30 |
Rank | Athlete | Time | Notes | {{Gold1}} | {{flagIOC2athlete|Kosuke Kitajima|JPN|2002 Asian Games}} | 1:00.45 | swimming}} |
{{Silver2}} | {{flagIOC2athlete|Zeng Qiliang|CHN|2002 Asian Games}} | 1:03.04 |
{{Bronze3}} | {{flagIOC2athlete|Yoshihisa Yamaguchi|JPN|2002 Asian Games}} | 1:03.22 |
4 | {{flagIOC2athlete|Yang Shang-hsuan|TPE|2002 Asian Games}} | 1:04.09 |
5 | {{flagIOC2athlete|Elvin Chia|MAS|2002 Asian Games}} | 1:04.22 |
6 | {{flagIOC2athlete|Cheng Hao|CHN|2002 Asian Games}} | 1:04.52 |
7 | {{flagIOC2athlete|Tam Chi Kin|HKG|2002 Asian Games}} | 1:05.55 |
— | {{flagIOC2athlete|Chen Cho-yi|TPE|2002 Asian Games}} | DSQ |