# 2010 Pan Pacific Swimming Championships

The eleventh edition of the Pan Pacific Swimming Championships, also known as the 2010 Mutual of Omaha Pan Pacific Swimming Championships, a long course (50 m) event, was held in Irvine, California, United States, from August 18–22.

## Medal table

* Host nation (United States)
| Rank | Nation | Gold | Silver | Bronze | Total |
| 1 | United States (USA)* | 28 | 18 | 10 | 56 |
| 2 | Australia (AUS) | 6 | 15 | 11 | 32 |
| 3 | Japan (JPN) | 3 | 5 | 5 | 13 |
| 4 | Canada (CAN) | 2 | 2 | 7 | 11 |
| 5 | Brazil (BRA) | 2 | 2 | 4 | 8 |
| 6 | South Korea (KOR) | 1 | 1 | 0 | 2 |
| 7 | China (CHN) | 0 | 0 | 2 | 2 |
| 7 | South Africa (RSA) | 0 | 0 | 2 | 2 |
| 9 | Chile (CHI) | 0 | 0 | 1 | 1 |
| 9 | New Zealand (NZL) | 0 | 0 | 1 | 1 |
| Totals (10 entries) | Totals (10 entries) | 42 | 43 | 43 | 128 |
By agreement of the charter nations, medals from the 50 m backstroke, breaststroke, and butterfly events would not count towards the official medals standings. These events are not typically swum at the Pan Pacific Championships, but were added to the schedule because the meet served as a qualifying meet for several other large international competitions.

## Events

The swimming program for 2010 had a total number of 42 events (21 each for men and women). The following events were contested:
* Freestyle: 50 m, 100 m, 200 m, 400 m, 800 m, 1500 m
* Backstroke: 50 m, 100 m, 200 m
* Breaststroke: 50 m, 100 m, 200 m
* Butterfly: 50, 100 m, 200 m
* Individual medley: 200 m, 400 m
* Relay: 4×100 m free, 4×200 m free; 4×100 m medley
* Marathon: 10 km
The 50 m butterfly, 50 m backstroke, and 50 m breaststroke events did not count toward the team scores.

## Qualifying criteria

Unlike the World Championships and Olympic Games, nations can enter as many people as they like in the preliminaries of each event (in most international meets, only two swimmers from each nation are permitted). However, only two swimmers per nation can qualify for the semi-finals and finals. Prior to FINA's creation of semi-finals in the late 1990s, a total of 3 swimmers per country could qualify for the final and consolation heats of an event, with no more than 2 swimmers per country in a final or consolation.
For relays, each country may enter up to one team in each relay event to swim in the final heat and count toward the team score. Countries may also enter a “B” relay that will swim in a preceding heat. These “B” relays may not score points and are not eligible for medals. An NOC may enter up to 1 swimmer per sex (2 total), if they have no swimmers meeting any qualifying B standard.

## Results
### Men's events

| Event | Gold | Gold | Silver | Silver | Bronze | Bronze |
| 50 m freestyle details | Nathan Adrian (USA) | 21.55 CR | César Cielo (BRA) | 21.57 | Brent Hayden (CAN) | 21.89 |
| 100 m freestyle details | Nathan Adrian (USA) | 48.15 CR | Brent Hayden (CAN) | 48.19 | César Cielo (BRA) | 48.48 |
| 200 m freestyle details | Ryan Lochte (USA) | 1:45.30 | Park Tae-Hwan (KOR) | 1:46.27 | Peter Vanderkaay (USA) | 1:46.65 |
| 400 m freestyle details | Park Tae-Hwan (KOR) | 3:44.73 | Ryan Cochrane (CAN) | 3:46.78 | Zhang Lin (CHN) | 3:46.91 |
| 800 m freestyle details | Ryan Cochrane (CAN) | 7:48.71 | Chad La Tourette (USA) | 7:51.62 | Takeshi Matsuda (JPN) | 7:51.87 |
| 1500 m freestyle details | Ryan Cochrane (CAN) | 14:49.47 | Chad La Tourette (USA) | 14:54.48 | Zhang Lin (CHN) | 14:58.90 |
| 50 m backstroke* details | Junya Koga (JPN) | 24.86 | Ashley Delaney (AUS) | 24.98 | Nick Thoman (USA) | 25.02 |
| 100 m backstroke details | Aaron Peirsol (USA) | 53.31 CR | Junya Koga (JPN) | 53.63 | Ashley Delaney (AUS) | 53.67 |
| 200 m backstroke details | Ryan Lochte (USA) | 1:54.12 CR | Tyler Clary (USA) | 1:54.90 | Ryosuke Irie (JPN) | 1:55.21 |
| 50 m breaststroke* details | Felipe Silva (BRA) | 27.26 | Mark Gangloff (USA) | 27.52 | Scott Dickens (CAN) | 27.63 |
| 100 m breaststroke details | Kosuke Kitajima (JPN) | 59.35 | Christian Sprenger (AUS) | 1:00.18 | Mark Gangloff (USA) | 1:00.24 |
| 200 m breaststroke details | Kosuke Kitajima (JPN) | 2.08.36 CR | Brenton Rickard (AUS) | 2.09.97 | Eric Shanteau (USA) | 2.10.13 |
| 50 m butterfly* details | César Cielo (BRA) | 23.03 CR | Nicholas Santos (BRA) | 23.33 | Roland Schoeman (RSA) | 23.39 |
| 100 m butterfly details | Michael Phelps (USA) | 50.86 CR | Tyler McGill (USA) | 51.85 | Takuro Fujii (JPN) | 52.12 |
| 200 m butterfly details | Michael Phelps (USA) | 1:54.11 | Nick D'Arcy (AUS) | 1:54.73 | Takeshi Matsuda (JPN) | 1:54.81 |
| 200 m individual medley details | Ryan Lochte (USA) | 1:54.43 CR | Tyler Clary (USA) | 1:57.61 | Thiago Pereira (BRA) | 1:57.83 |
| 400 m individual medley details | Ryan Lochte (USA) | 4:07.59 CR | Tyler Clary (USA) | 4:09.55 | Thiago Pereira (BRA) | 4:12.09 |
| 4×100 m freestyle relay details | United States Michael Phelps (48.13) CR Ryan Lochte (47.98) Jason Lezak (48.12) Nathan Adrian (47.51) | 3:11.74 CR | Australia Eamon Sullivan (49.19) Kyle Richardson (48.48) Cameron Prosser (48.38) James Magnussen (48.25) | 3:14.30 | South Africa Lyndon Ferns (49.19) Gideon Louw (48.40) Roland Schoeman (49.95) Graeme Moore (48.39) | 3:15.93 |
| 4×200 m freestyle relay details | United States Michael Phelps (1:45.62) Peter Vanderkaay (1:46.46) Ricky Berens (1:46.49) Ryan Lochte (1:45.27) | 7:03.84 CR | Japan Takeshi Matsuda (1:47.08) Yuki Kobori (1:47.90) Yoshihiro Okumura (1:48.17) Sho Uchida (1:47.86) | 7:11.01 | Australia Thomas Fraser-Holmes (1:47.70) Nicholas Ffrost (1:47.71) Kenrick Monk (1:46.82) Leith Brodie (1:48.82) | 7:11.05 |
| 4×100 m medley relay details | United States Aaron Peirsol (53.91) Mark Gangloff (1:00.45) Michael Phelps (50.58) Nathan Adrian (47.54) | 3:32.48 | Japan Junya Koga (53.87) Kosuke Kitajima (59.18) Masayuki Kishida (52.07) Takuro Fujii (48.78) | 3:33.90 | Australia Ashley Delaney (53.97) Christian Sprenger (1:01.21) Geoff Huegill (51.45) Kyle Richardson (48.92) | 3:35.55 |
| 10 km open water details | Chip Peterson (USA) | 1:56:00.02 | Fran Crippen (USA) | 1:56.02.74 | Richard Weinberger (CAN) | 1:56:02.98 |

### Women's events

| Event | Gold | Gold | Silver | Silver | Bronze | Bronze |
| 50 m freestyle details | Jessica Hardy (USA) | 24.63 CR | Amanda Weir (USA) | 24.70 | Victoria Poon (CAN) | 24.76 |
| 100 m freestyle details | Natalie Coughlin (USA) | 53.67 CR | Emily Seebohm (AUS) Dana Vollmer (USA) | 53.96 | Not awarded | Not awarded |
| 200 m freestyle details | Allison Schmitt (USA) | 1:56.10 CR | Morgan Scroggy (USA) | 1:57.13 | Blair Evans (AUS) | 1:57.27 |
| 400 m freestyle details | Chloe Sutton (USA) | 4:05.19 | Katie Goldman (AUS) | 4:05.84 | Blair Evans (AUS) | 4:06.36 |
| 800 m freestyle details | Kate Ziegler (USA) | 8:21.59 | Chloe Sutton (USA) | 8:24.51 | Katie Goldman (AUS) | 8:26.38 |
| 1500 m freestyle details | Melissa Gorman (AUS) | 16:01.53 | Kate Ziegler (USA) | 16:03.26 | Kristel Köbrich (CHI) | 16:06.57 |
| 50 m backstroke* details | Sophie Edington (AUS) | 27.83 | Aya Terakawa (JPN) | 28.04 | Emily Thomas (NZL) Fabiola Molina (BRA) Rachel Bootsma (USA) | 28.44 |
| 100 m backstroke details | Emily Seebohm (AUS) | 59.45 CR | Aya Terakawa (JPN) | 59.59 | Natalie Coughlin (USA) | 59.70 |
| 200 m backstroke details | Elizabeth Beisel (USA) | 2:07.83 | Elizabeth Pelton (USA) | 2:08.10 | Belinda Hocking (AUS) | 2:08.60 |
| 50 m breaststroke* details | Jessica Hardy (USA) | 30.03 | Leiston Pickett (AUS) | 30.75 | Leisel Jones (AUS) | 30.78 |
| 100 m breaststroke details | Rebecca Soni (USA) | 1:04.93 CR | Leisel Jones (AUS) | 1:05.66 | Sarah Katsoulis (AUS) | 1:07.04 |
| 200 m breaststroke details | Rebecca Soni (USA) | 2:20.69 CR | Leisel Jones (AUS) | 2:23.23 | Annamay Pierse (CAN) | 2:23.65 |
| 50 m butterfly* details | Marieke Guehrer (AUS) | 25.99 =CR | Emily Seebohm (AUS) | 26.08 | Christine Magnuson (USA) | 26.33 |
| 100 m butterfly details | Dana Vollmer (USA) | 57.56 | Christine Magnuson (USA) | 57.95 | Alicia Coutts (AUS) | 57.99 |
| 200 m butterfly details | Jessicah Schipper (AUS) | 2:06.90 | Teresa Crippen (USA) | 2:06.93 | Kathleen Hersey (USA) | 2:07.27 |
| 200 m individual medley details | Emily Seebohm (AUS) | 2:09.93 CR | Ariana Kukors (USA) | 2:10.25 | Caitlin Leverenz (USA) | 2:11.21 |
| 400 m individual medley details | Elizabeth Beisel (USA) | 4:34.69 | Samantha Hamill (AUS) | 4:37.84 | Caitlin Leverenz (USA) | 4:38.03 |
| 4×100 m freestyle relay details | United States Natalie Coughlin (54.25) Jessica Hardy (53.43) Amanda Weir (53.85) Dana Vollmer (53.58) | 3:35.11 CR | Australia Yolane Kukla (55.51) Emily Seebohm (53.86) Alicia Coutts (54.34) Felicity Galvez (54.35) | 3:38.06 | Canada Victoria Poon (54.46) Julia Wilkinson (54.60) Erica Morningstar (54.73) Genevieve Saumur(54.35) | 3:38.14 NR |
| 4×200 m freestyle relay details | United States Dana Vollmer (1:58.05) Morgan Scroggy (1:57.89) Katie Hoff (1:58.70) Allison Schmitt (1:56.57) | 7:51.21 CR | Australia Blair Evans (1:58.31) Kylie Palmer (1:58.01) Katie Goldman (1:58.19) Meagen Nay (1:58.13) | 7:52.64 | Canada Geneviève Saumur (1:58.52) Julia Wilkinson (1:58.20) Barbara Jardin (1:58.46) Samantha Cheverton (1:59.14) | 7:54.32 |
| 4×100 m medley relay details | United States Natalie Coughlin (59.85) Rebecca Soni (1:05.35) Dana Vollmer (56.91) Jessica Hardy (53.12) | 3:55.23 CR | Australia Emily Seebohm (59.34) CR Leisel Jones (1:05.38) Alicia Coutts (57.86) Yolane Kukla (54.38) | 3:56.96 | Japan Aya Terakawa (59.41) Satomi Suzuki (1:06.54) Yuka Kato (57.96) Haruka Ueda (53.84) | 3:57.75 |
| 10 km open water details | Christine Jennings (USA) | 2:00:33.83 | Eva Fabian (USA) | 2:00:35.76 | Melissa Gorman (AUS) | 2:00:56.57 |

## Participating nations

* Argentina
* Australia
* Brazil
* Canada
* Cayman Islands
* Chile
* China
* Chinese Taipei
* Ecuador
* Hong Kong
* Japan
* New Zealand
* Papua New Guinea
* Peru
* Philippines
* Singapore
* South Korea
* South Africa
* Trinidad and Tobago
* Tunisia
* United States
* Zimbabwe