1999 Pan Pacific Swimming Championships – Men's 400 metre individual medley
The men's 400 metre individual medley competition at the 1999 Pan Pacific Swimming Championships took place on August 23 at the Sydney International Aquatic Centre. The last champion was Matthew Dunn of Australia.
This race consisted of eight lengths of the pool. The first two lengths were swum using the butterfly stroke, the second pair with the backstroke, the third pair of lengths in breaststroke, and the final two were freestyle.
Records
Prior to this competition, the existing world and Pan Pacific records were as follows:| World record | 4:12.30 | Rome, Italy | September 11, 1994 | |
| Pan Pacific Championships record | 4:14.77 | Atlanta, United States | August 10, 1995 |
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 23.| Rank | Name | Nationality | Time | Notes |
| 1 | Trent Steed | 4:19.14 | Q | |
| 2 | Tom Wilkens | 4:19.97 | Q | |
| 3 | Matthew Dunn | 4:20.22 | Q | |
| 4 | Erik Vendt | 4:20.42 | Q | |
| 5 | Curtis Myden | 4:20.69 | Q | |
| 6 | Grant McGregor | 4:20.72 | Q | |
| 7 | Justin Norris | 4:22.69 | Q | |
| 8 | Tatsuya Kinugasa | 4:22.95 | Q | |
| 9 | Takahiro Mori | 4:23.05 | ||
| 10 | Terence Parkin | 4:23.67 | ||
| 11 | Owen Von Richter | 4:25.08 | ||
| 12 | Dean Kent | 4:27.07 | ||
| 13 | Chuck Sayao | 4:28.40 | ||
| 14 | Tseng Cheng-hua | 4:36.62 | ||
| 15 | Wan Azlan Abdullah | 4:36.83 |
Final
The final was held on August 23.| Rank | Lane | Nationality | Time | Notes |
| Matthew Dunn | 4:16.54 | |||
| Curtis Myden | 4:16.77 | |||
| Tom Wilkens | 4:18.58 | |||
| 4 | Trent Steed | 4:19.65 | ||
| 5 | Terence Parkin | 4:20.79 | ||
| 6 | Takahiro Mori | 4:23.09 | ||
| 7 | Erik Vendt | 4:24.50 | ||
| 8 | Tatsuya Kinugasa | 4:24.88 |