Swimming at the 1998 Asian Games – Men's 100 metre butterfly
# Swimming at the 1998 Asian Games – Men's 100 metre butterfly

The men's 100 metre butterfly swimming competition at the 1998 Asian Games in Bangkok was held on 8 December at the Thammasat Aquatic Center.

## Schedule

All times are Indochina Time (UTC+07:00)

| Date | Time | Event |
| - | - | - |
| Tuesday, 8 December 1998 | 09:00 | Heats |
| Tuesday, 8 December 1998 | 18:00 | Finals |

## Results

### Legend

* DNS — Did not start

### Heats

| Rank | Heat | Athlete | Time |
| - | - | - | - |
| 1 | 4 | Takashi Yamamoto (JPN) | 54.20 |
| 2 | 2 | Zhang Xiao (CHN) | 55.01 |
| 3 | 4 | Han Kyu-chul (KOR) | 55.86 |
| 4 | 3 | Ravil Nachaev (UZB) | 55.94 |
| 5 | 3 | Zhang Qiang (CHN) | 56.05 |
| 6 | 4 | Andrey Gavrilov (KAZ) | 56.09 |
| 7 | 3 | Dulyarit Phuangthong (THA) | 56.28 |
| 8 | 2 | Hisayoshi Tanaka (JPN) | 56.33 |
| 9 | 2 | Tseng Cheng-hua (TPE) | 56.35 |
| 10 | 1 | Hung Chien-chih (TPE) | 56.40 |
| 11 | 3 | Konstantin Andriushin (KGZ) | 56.41 |
| 12 | 2 | Nuttapol Chavanavanichwoot (THA) | 56.53 |
| 13 | 2 | Kim Min-suk (KOR) | 57.17 |
| 14 | 4 | Jonathan Chua (SIN) | 58.14 |
| 15 | 2 | Fadi Kouzmah (SYR) | 59.14 |
| 16 | 4 | Tang Chon Kit (MAC) | 59.52 |
| 17 | 4 | Charles Szeto (HKG) | 59.82 |
| 18 | 3 | Ghefari Dulapandan (SRI) | 1:00.10 |
| 19 | 3 | Nayef Al-Hasawi (KUW) | 1:00.48 |
| 20 | 2 | Gihan Ranatunga (SRI) | 1:00.73 |
| 21 | 2 | Hamid Reza Mobarrez (IRI) | 1:00.88 |
| 22 | 4 | Abdul Hamid Ripon (BAN) | 1:01.45 |
| 23 | 3 | Pirouz Eftekhar-Manavi (IRI) | 1:01.76 |
| 24 | 3 | Thamer Al-Shamroukh (KUW) | 1:02.83 |
| — | 1 | Obaid Al-Rumaithi (UAE) | DNS |
| — | 1 | Arthur Li (HKG) | DNS |
| — | 4 | Kamal Salman Masud (PAK) | DNS |

### Finals

**Final B**

| Rank | Athlete | Time |
| - | - | - |
| 1 | Tseng Cheng-hua (TPE) | 56.23 |
| 2 | Hung Chien-chih (TPE) | 56.25 |
| 3 | Kim Min-suk (KOR) | 56.29 |
| 4 | Nuttapol Chavanavanichwoot (THA) | 56.50 |
| 5 | Konstantin Andriushin (KGZ) | 56.90 |
| 6 | Jonathan Chua (SIN) | 58.64 |
| 7 | Tang Chon Kit (MAC) | 59.08 |
| 8 | Fadi Kouzmah (SYR) | 59.34 |

**Final A**

| Rank | Athlete | Time | Notes |
| - | - | - | - |
| | Takashi Yamamoto (JPN) | 53.34 | GR |
| | Zhang Xiao (CHN) | 54.40 | |
| | Han Kyu-chul (KOR) | 54.83 | |
| 4 | Zhang Qiang (CHN) | 55.22 | |
| 5 | Andrey Gavrilov (KAZ) | 55.41 | |
| 6 | Hisayoshi Tanaka (JPN) | 56.07 | |
| 7 | Ravil Nachaev (UZB) | 56.36 | |
| 8 | Dulyarit Phuangthong (THA) | 56.43 | |
