2010 Pan Pacific Swimming Championships – Women's 50 metre freestyle
The women's 50 metre freestyle competition at the 2010 Pan Pacific Swimming Championships took place on August 21 at the William Woollett Jr. Aquatics Center. The last champion was Kara Lynn Joyce of US.
This race consisted of one length of the pool in freestyle.
Records
Prior to this competition, the existing world and Pan Pacific records were as follows:| World record | 23.73 | Rome, Italy | August 2, 2009 | |
| Pan Pacific Championships record | 25.03 | 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 21, at 10:30.| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | 5 | Jessica Hardy | 24.75 | QA, CR | |
| 2 | 4 | 3 | Amanda Weir | 24.97 | QA | |
| 3 | 5 | 4 | Kara Lynn Joyce | 25.00 | QA | |
| 4 | 5 | 3 | Madison Kennedy | 25.07 | QA | |
| 5 | 5 | 6 | Victoria Poon | 25.06 | QA | |
| 6 | 5 | 5 | Yolane Kukla | 25.18 | QA | |
| 7 | 3 | 6 | Dana Vollmer | 25.20 | QA | |
| 8 | 4 | 4 | Marieke Guehrer | 25.25 | QA | |
| 9 | 3 | 5 | Alice Mills | 25.32 | QB | |
| 10 | 5 | 2 | Hayley Palmer | 25.48 | QB | |
| 11 | 3 | 4 | Flávia Delaroli | 25.52 | QB | |
| 12 | 5 | 7 | Sophie Edington | 25.57 | QB | |
| 13 | 3 | 2 | Christine Magnuson | 25.69 | QB | |
| 14 | 3 | 1 | Tomoko Hagiwara | 25.74 | QB | |
| 15 | 4 | 7 | Yayoi Matsumoto | 25.76 | QB | |
| 16 | 3 | 7 | Hannah Wilson | 25.82 | QB | |
| 17 | 4 | 6 | Sally Foster | 25.85 | ||
| 18 | 5 | 1 | Haruka Ueda | 25.90 | ||
| 19 | 4 | 8 | Kelly Stubbins | 25.94 | ||
| 20 | 4 | 2 | Julyana Kury | 25.95 | ||
| 21 | 5 | 8 | Hanae Ito | 25.96 | ||
| 22 | 3 | 3 | Tatiana Lemos | 26.14 | ||
| 22 | 4 | 1 | Hannah Riordan | 26.14 | ||
| 24 | 2 | 3 | Mary Mohler | 26.21 | ||
| 25 | 2 | 4 | Amaka Gessler | 26.39 | ||
| 26 | 3 | 8 | Tash Hind | 26.46 | ||
| 27 | 2 | 2 | Penny Marshall | 26.47 | ||
| 28 | 2 | 7 | Alexandra Gabor | 26.50 | ||
| 29 | 2 | 6 | Felicity Galvez | 26.59 | ||
| 30 | 1 | 4 | Rachel Bootsma | 26.64 | ||
| 31 | 1 | 5 | Emily Thomas | 26.95 | ||
| - | 1 | 3 | Stephanie Rice | DNS | ||
| - | 2 | 5 | Meagen Nay | DNS |
B Final
The B final was held on August 21, at 18:51.| Rank | Lane | Name | Nationality | Time | Notes |
| 9 | 4 | Kara Lynn Joyce | 25.26 | ||
| 10 | 5 | Alice Mills | 25.33 | ||
| 11 | 3 | Yayoi Matsumoto | 25.62 | ||
| 12 | 1 | Hannah Riordan | 25.68 | ||
| 13 | 6 | Hannah Wilson | 25.79 | ||
| 14 | 7 | Hanae Ito | 25.91 | ||
| 15 | 2 | Julyana Kury | 26.03 | ||
| 16 | 8 | Tatiana Lemos | 26.04 |
A Final
The A final was held on August 21, at 18:51.| Rank | Lane | Name | Nationality | Time | Notes |
| 4 | Jessica Hardy | 24.63 | CR | ||
| 5 | Amanda Weir | 24.70 | |||
| 3 | Victoria Poon | 24.76 | |||
| 4 | 6 | Yolane Kukla | 24.95 | ||
| 5 | 2 | Marieke Guehrer | 24.99 | ||
| 6 | 7 | Hayley Palmer | 25.35 | ||
| 7 | 1 | Flávia Delaroli | 25.36 | ||
| 8 | 8 | Tomoko Hagiwara | 25.49 |