| Event: | Women'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: | 3:55.23 |
| Gold: | Natalie Coughlin, Rebecca Soni, Dana Vollmer and Jessica Hardy |
| Goldnoc: | USA |
| Silver: | Emily Seebohm, Leisel Jones, Alicia Coutts and Yolane Kukla |
| Silvernoc: | AUS |
| Bronze: | Aya Terakawa, Satomi Suzuki, Yuka Kato and Haruka Ueda |
| Bronzenoc: | JPN |
| Prev: | 2006 |
| Next: | 2014 |
The women'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 | Zhao Jing (58.98) Chen Huijia (1:04.12) Jiao Liuyang (56.28) Li Zhesi (52.81) | 3:52.19 | Rome, Italy | August 1, 2009 | |
| Pan Pacific Championships record | Natalie Coughlin (1:00.12) Jessica Hardy (1:06.53) Rachel Komisarz (57.88) Amanda Weir (53.85) | 3:58.38 | Victoria, Canada | August 20, 2006 |
All times are in minutes and seconds.
Heats weren't performed, as only four teams had entered.
The final was held on August 21, at 20:15.
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 5 | Natalie Coughlin (59.85) Rebecca Soni (1:05.35) Dana Vollmer (56.91) Jessica Hardy (53.12) | 3:55.23 | CR | |||
| 4 | Emily Seebohm (59.34 CR) Leisel Jones (1:05.38) Alicia Coutts (57.86) Yolane Kukla (54.38) | 3:56.96 | ||||
| 3 | Aya Terakawa (59.41) Satomi Suzuki (1:06.54) Yuka Kato (57.96) Haruka Ueda (53.84) | 3:57.75 | ||||
| 4 | 2 | Julia Wilkinson (1:00.60) Annamay Pierse (1:07.70) Katerine Savard (1:00.12) Victoria Poon (54.66) | 4:03.08 | |||
| - | 6 | - - - - | DNS |