# 2002 Pan Pacific Swimming Championships – Men's 100 metre backstroke

The men's 100 metre backstroke competition at the 2002 Pan Pacific Swimming Championships took place on August 25–26 at the Yokohama International Swimming Pool. The last champion was Lenny Krayzelburg of US.
This race consisted of two lengths of the pool, all in backstroke.

## Records

Prior to this competition, the existing world and Pan Pacific records were as follows:
| World record | Lenny Krayzelburg (USA) | 53.60 | Sydney, Australia | August 24, 1999 |
| Pan Pacific Championships record | Lenny Krayzelburg (USA) | 53.60 | Sydney, Australia | August 24, 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 25.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 1 | 4 | Randall Bal | United States | 54.53 | Q |
| 2 | 3 | 4 | Aaron Peirsol | United States | 54.91 | Q |
| 3 | 1 | 5 | Atsushi Nishikori | Japan | 55.54 | Q |
| 4 | 3 | 5 | Peter Marshall | United States | 55.59 | Q |
| 5 | 2 | 5 | Tomomi Morita | Japan | 55.78 | Q |
| 6 | 2 | 4 | Matt Welsh | Australia | 55.84 | Q |
| 7 | 2 | 3 | Riley Janes | Canada | 56.04 | Q |
| 8 | 1 | 3 | Ethan Rolff | Australia | 56.49 | Q |
| 9 | 2 | 6 | Leigh McBean | Australia | 56.54 | Q |
| 10 | 3 | 3 | Raymond Hunt | United States | 56.61 | Q |
| 11 | 1 | 2 | Takashi Nakano | Japan | 56.78 | Q |
| 12 | 3 | 7 | Luke Wagner | United States | 56.89 | Q |
| 13 | 2 | 2 | Naoya Sonoda | Japan | 56.94 | Q |
| 14 | 3 | 6 | Yu Rui | China | 57.02 | Q |
| 15 | 1 | 7 | Cléber Costa | Brazil | 57.40 | Q |
| 16 | 3 | 2 | Gord Veldman | Canada | 57.50 | Q |
| 17 | 2 | 7 | Scott Talbot | New Zealand | 57.56 | |
| 18 | 3 | 1 | Thiago Pinto | Brazil | 57.58 | |
| 19 | 1 | 6 | Cameron Gibson | New Zealand | 58.29 | |
| 20 | 3 | 8 | Ian Crocker | United States | 58.94 | |
| 21 | 1 | 1 | Michael Galindo | Puerto Rico | 59.12 | |
| 22 | 2 | 1 | Mun Yew Gerald Koh | Singapore | 1:00.04 | |
| 23 | 2 | 8 | Seung Gin Lee | Northern Mariana Islands | 1:07.43 | |
| - | 1 | 8 | Enkhmandakb Khurlee | Mongolia | DNS | |

### Semifinals

The semifinals were held on August 25.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 4 | Randall Bal | United States | 54.24 | Q |
| 2 | 1 | 4 | Aaron Peirsol | United States | 54.31 | Q |
| 3 | 1 | 5 | Peter Marshall | United States | 55.02 | Q |
| 4 | 2 | 5 | Atsushi Nishikori | Japan | 55.75 | Q |
| 5 | 2 | 6 | Riley Janes | Canada | 55.83 | Q |
| 6 | 2 | 3 | Tomomi Morita | Japan | 55.89 | Q |
| 7 | 2 | 2 | Leigh McBean | Australia | 56.02 | Q |
| 8 | 1 | 2 | Raymond Hunt | United States | 56.12 | Q |
| 9 | 2 | 1 | Yu Rui | China | 56.44 | |
| 10 | 1 | 6 | Ethan Rolff | Australia | 56.46 | |
| 11 | 2 | 7 | Takashi Nakano | Japan | 56.69 | |
| 12 | 1 | 7 | Naoya Sonoda | Japan | 56.81 | |
| 13 | 2 | 8 | Gord Veldman | Canada | 57.08 | |
| 14 | 1 | 1 | Cléber Costa | Brazil | 57.13 | |
| 15 | 1 | 8 | Scott Talbot | New Zealand | 57.40 | |
| - | 1 | 3 | Matt Welsh | Australia | DSQ | |

### Final

The final was held on August 26.
| Rank | Lane | Name | Nationality | Time |
| | 5 | Aaron Peirsol | United States | 54.22 |
| | 4 | Randall Bal | United States | 54.45 |
| | 2 | Tomomi Morita | Japan | 55.29 |
| 4 | 3 | Atsushi Nishikori | Japan | 55.30 |
| 5 | 6 | Riley Janes | Canada | 55.63 |
| 6 | 7 | Leigh McBean | Australia | 55.71 |
| 7 | 8 | Ethan Rolff | Australia | 56.51 |
| 8 | 1 | Yu Rui | China | 56.55 |