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 | 53.60 | Sydney, Australia | August 24, 1999 | |
| Pan Pacific Championships record | 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 | 54.53 | Q | |
| 2 | 3 | 4 | Aaron Peirsol | 54.91 | Q | |
| 3 | 1 | 5 | Atsushi Nishikori | 55.54 | Q | |
| 4 | 3 | 5 | Peter Marshall | 55.59 | Q | |
| 5 | 2 | 5 | Tomomi Morita | 55.78 | Q | |
| 6 | 2 | 4 | Matt Welsh | 55.84 | Q | |
| 7 | 2 | 3 | Riley Janes | 56.04 | Q | |
| 8 | 1 | 3 | Ethan Rolff | 56.49 | Q | |
| 9 | 2 | 6 | Leigh McBean | 56.54 | Q | |
| 10 | 3 | 3 | Raymond Hunt | 56.61 | Q | |
| 11 | 1 | 2 | Takashi Nakano | 56.78 | Q | |
| 12 | 3 | 7 | Luke Wagner | 56.89 | Q | |
| 13 | 2 | 2 | Naoya Sonoda | 56.94 | Q | |
| 14 | 3 | 6 | Yu Rui | 57.02 | Q | |
| 15 | 1 | 7 | Cléber Costa | 57.40 | Q | |
| 16 | 3 | 2 | Gord Veldman | 57.50 | Q | |
| 17 | 2 | 7 | Scott Talbot | 57.56 | ||
| 18 | 3 | 1 | Thiago Pinto | 57.58 | ||
| 19 | 1 | 6 | Cameron Gibson | 58.29 | ||
| 20 | 3 | 8 | Ian Crocker | 58.94 | ||
| 21 | 1 | 1 | Michael Galindo | 59.12 | ||
| 22 | 2 | 1 | Mun Yew Gerald Koh | 1:00.04 | ||
| 23 | 2 | 8 | Seung Gin Lee | 1:07.43 | ||
| - | 1 | 8 | Enkhmandakb Khurlee | DNS |
Semifinals
The semifinals were held on August 25.| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 4 | Randall Bal | 54.24 | Q | |
| 2 | 1 | 4 | Aaron Peirsol | 54.31 | Q | |
| 3 | 1 | 5 | Peter Marshall | 55.02 | Q | |
| 4 | 2 | 5 | Atsushi Nishikori | 55.75 | Q | |
| 5 | 2 | 6 | Riley Janes | 55.83 | Q | |
| 6 | 2 | 3 | Tomomi Morita | 55.89 | Q | |
| 7 | 2 | 2 | Leigh McBean | 56.02 | Q | |
| 8 | 1 | 2 | Raymond Hunt | 56.12 | Q | |
| 9 | 2 | 1 | Yu Rui | 56.44 | ||
| 10 | 1 | 6 | Ethan Rolff | 56.46 | ||
| 11 | 2 | 7 | Takashi Nakano | 56.69 | ||
| 12 | 1 | 7 | Naoya Sonoda | 56.81 | ||
| 13 | 2 | 8 | Gord Veldman | 57.08 | ||
| 14 | 1 | 1 | Cléber Costa | 57.13 | ||
| 15 | 1 | 8 | Scott Talbot | 57.40 | ||
| - | 1 | 3 | Matt Welsh | DSQ |
Final
The final was held on August 26.| Rank | Lane | Name | Nationality | Time | Notes |
| 5 | Aaron Peirsol | 54.22 | |||
| 4 | Randall Bal | 54.45 | |||
| 2 | Tomomi Morita | 55.29 | |||
| 4 | 3 | Atsushi Nishikori | 55.30 | ||
| 5 | 6 | Riley Janes | 55.63 | ||
| 6 | 7 | Leigh McBean | 55.71 | ||
| 7 | 8 | Ethan Rolff | 56.51 | ||
| 8 | 1 | Yu Rui | 56.55 |