# 2002 Pan Pacific Swimming Championships – Women's 100 metre butterfly

The women's 100 metre butterfly competition at the 2002 Pan Pacific Swimming Championships took place on August 24–25 at the Yokohama International Swimming Pool. The last champion was Jenny Thompson of US.
This race consisted of two lengths of the pool, all in butterfly.

## Records

Prior to this competition, the existing world and Pan Pacific records were as follows:
| World record | Inge de Bruijn (NED) | 56.61 | Sydney, Australia | September 17, 2000 |
| Pan Pacific Championships record | Jenny Thompson (USA) | 57.88 | Sydney, Australia | August 23, 1999 |

## Results

All times are in minutes and seconds.
| KEY: | q | Fastest non-qualifiers | Q | Qualified | CR | Championships record | NR | National record | PB | Personal best | SB | Seasonal best |

### Heats

The first round was held on August 24.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | 4 | Natalie Coughlin | United States | 58.49 | Q |
| 2 | 2 | 4 | Jenny Thompson | United States | 58.90 | Q |
| 3 | 3 | 4 | Petria Thomas | Australia | 59.19 | Q |
| 4 | 2 | 5 | Dana Kirk | United States | 1:00.04 | Q |
| 5 | 4 | 3 | Yuko Nakanishi | Japan | 1:00.14 | Q |
| 6 | 4 | 6 | Jen Button | Canada | 1:00.21 | Q |
| 7 | 2 | 3 | Margaret Hoelzer | United States | 1:00.24 | Q |
| 8 | 4 | 2 | Audrey Lacroix | Canada | 1:00.38 | Q |
| 9 | 3 | 5 | Mary Descenza | United States | 1:00.50 | Q |
| 10 | 2 | 6 | Rachel Coffee | Australia | 1:00.76 | Q |
| 11 | 2 | 1 | Heidi Crawford | Australia | 1:00.82 | Q |
| 11 | 2 | 2 | Felicity Galvez | Australia | 1:00.82 | Q |
| 13 | 3 | 3 | Zhou Yafei | China | 1:00.92 | Q |
| 14 | 3 | 7 | Alice Mills | Australia | 1:01.16 | Q |
| 15 | 4 | 5 | Maki Mita | Japan | 1:01.38 | Q |
| 16 | 3 | 6 | Joscelin Yeo | Singapore | 1:01.46 | Q |
| 17 | 2 | 7 | Courtney Shealy | United States | 1:01.47 | |
| 18 | 3 | 8 | Mary Hill | United States | 1:01.68 | |
| 19 | 3 | 1 | Jennifer Fratesi | Canada | 1:01.83 | |
| 20 | 3 | 2 | Yurie Yano | Japan | 1:01.86 | |
| 21 | 4 | 1 | Jessica Deglau | Canada | 1:02.12 | |
| 22 | 4 | 7 | Liu Yin | China | 1:02.55 | |
| 23 | 4 | 8 | Elizabeth Collins | Canada | 1:02.75 | |
| 24 | 2 | 8 | Megan Allan | New Zealand | 1:03.03 | |
| 25 | 1 | 5 | Elizabeth Van Welie | New Zealand | 1:03.22 | |
| 26 | 1 | 2 | Rhiannon Jeffrey | United States | 1:03.77 | |
| 27 | 1 | 3 | Wing Suet Chan | Hong Kong | 1:03.93 | |
| 28 | 1 | 6 | Amanda Gillespie | Canada | 1:04.26 | |
| 29 | 1 | 4 | Nathalie Bernard | New Zealand | 1:04.58 | |

### Semifinals

The semifinals were held on August 24.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 5 | Petria Thomas | Australia | 58.20 | Q |
| 2 | 2 | 4 | Natalie Coughlin | United States | 58.44 | Q |
| 3 | 1 | 4 | Jenny Thompson | United States | 58.83 | Q |
| 4 | 1 | 3 | Jen Button | Canada | 59.76 | Q |
| 5 | 2 | 3 | Yuko Nakanishi | Japan | 1:00.09 | Q |
| 6 | 1 | 5 | Dana Kirk | United States | 1:00.16 | Q |
| 7 | 1 | 6 | Audrey Lacroix | Canada | 1:00.34 | Q |
| 8 | 2 | 2 | Rachel Coffee | Australia | 1:00.50 | Q |
| 9 | 2 | 1 | Maki Mita | Japan | 1:00.67 | |
| 10 | 2 | 6 | Margaret Hoelzer | United States | 1:00.67 | |
| 11 | 1 | 7 | Zhou Yafei | China | 1:00.80 | |
| 12 | 1 | 8 | Yurie Yano | Japan | 1:00.87 | |
| 13 | 2 | 7 | Felicity Galvez | Australia | 1:01.29 | |
| 14 | 1 | 1 | Joscelin Yeo | Singapore | 1:01.42 | |
| 15 | 1 | 2 | Heidi Crawford | Australia | 1:01.63 | |
| 16 | 2 | 8 | Jennifer Fratesi | Canada | 1:01.86 | |

### Final

The final was held on August 25.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 5 | Natalie Coughlin | United States | 57.88 | =CR |
| | 4 | Petria Thomas | Australia | 58.11 | |
| | 3 | Jenny Thompson | United States | 58.64 | |
| 4 | 6 | Jen Button | Canada | 59.68 | |
| 5 | 2 | Yuko Nakanishi | Japan | 59.77 | |
| 6 | 7 | Audrey Lacroix | Canada | 1:00.31 | |
| 7 | 1 | Rachel Coffee | Australia | 1:00.71 | |
| 8 | 8 | Maki Mita | Japan | 1:00.89 | |