| Event: | Men's 4 × 100 metre medley relay |
| Competition: | 2010 Pan Pacific Swimming Championships |
| Venue: | William Woollett Jr. Aquatics Center |
| Dates: | August 21, 2010 (heats &<br>finals) |
| Win Value: | 3:32.48 |
| Gold: | Aaron Peirsol, Mark Gangloff, Michael Phelps and Nathan Adrian |
| Goldnoc: | USA |
| Silver: | Junya Koga, Kosuke Kitajima, Masayuki Kishida and Takuro Fujii |
| Silvernoc: | JPN |
| Bronze: | Ashley Delaney, Christian Sprenger, Geoff Huegill and Kyle Richardson |
| Bronzenoc: | AUS |
| Prev: | 2006 |
| Next: | 2014 |
The men's 4 × 100 metre medley relay competition at the 2010 Pan Pacific Swimming Championships took place on August 21 at the William Woollett Jr. Aquatics Center.[1] [2] The last champion was the United States.[3] [4]
Prior to this competition, the existing world and Pan Pacific records were as follows:
| World record | Aaron Peirsol (52.19) Eric Shanteau (58.57) Michael Phelps (49.72) David Walters (46.80) | 3:27.28 | Rome, Italy | August 2, 2009 | |
| Pan Pacific Championships record | Aaron Peirsol (53.74) Brendan Hansen (59.18) Ian Crocker (50.92) Jason Lezak (47.95) | 3:31.79 | Victoria, Canada | August 20, 2006 |
All times are in minutes and seconds.
Heats weren't performed, as only seven teams had entered.
The final was held on August 21, at 20:27.
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 4 | Aaron Peirsol (53.91) Mark Gangloff (1:00.45) Michael Phelps (50.58) Nathan Adrian (47.54) | 3:32.48 | ||||
| 6 | Junya Koga (53.87) Kosuke Kitajima (59.18) Masayuki Kishida (52.07) Takuro Fujii (48.78) | 3:33.90 | ||||
| 5 | Ashley Delaney (53.97) Christian Sprenger (1:01.21) Geoff Huegill (51.45) Kyle Richardson (48.92) | 3:35.55 | ||||
| 4 | 3 | Guilherme Guido (55.05) Tales Cerdeira (1:01.29) Gabriel Mangabeira (52.69) César Cielo (47.83) | 3:36.86 | |||
| 5 | 2 | Jake Tapp (55.86) Scott Dickens (1:01.17) Joe Bartoch (52.22) Brent Hayden (47.76) | 3:37.01 | |||
| 6 | 1 | Gareth Kean (54.94) Glenn Snyders (1:00.48) Moss Burmester (53.73) Carl O'Donnell (49.54) | 3:38.69 | |||
| 7 | 7 | Park Seon-Kwan (55.84) Choi Kyu-Woong (1:02.81) Jeong Doo-Hee (53.67) Park Minkyu (50.68) | 3:43.00 |