2010 Pan Pacific Swimming Championships – Women's 4 × 100 metre medley relay

Women's 4 × 100 metre medley relay at the 2010 Pan Pacific Swimming Championships
Venue	William Woollett Jr. Aquatics Center
Dates	August 21, 2010 (heats & finals)
Winning time	3:55.23
Medalists
Natalie Coughlin, Rebecca Soni, Dana Vollmer and Jessica Hardy   United States   Emily Seebohm, Leisel Jones, Alicia Coutts and Yolane Kukla   Australia   Aya Terakawa, Satomi Suzuki, Yuka Kato and Haruka Ueda   Japan

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. The last champion was the United States.

Records

Prior to this competition, the existing world and Pan Pacific records were as follows:

World record	China (CHN) 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	United States (USA) 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

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

Heats weren't performed, as only four teams had entered.

Final

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)	United States	3:55.23	CR
	4	Emily Seebohm (59.34 CR) Leisel Jones (1:05.38) Alicia Coutts (57.86) Yolane Kukla (54.38)	Australia	3:56.96
	3	Aya Terakawa (59.41) Satomi Suzuki (1:06.54) Yuka Kato (57.96) Haruka Ueda (53.84)	Japan	3:57.75
4	2	Julia Wilkinson (1:00.60) Annamay Pierse (1:07.70) Katerine Savard (1:00.12) Victoria Poon (54.66)	Canada	4:03.08
-	6	- - - -	Brazil	DNS