2018 Pan Pacific Swimming Championships – Women's 800 metre freestyle
# 2018 Pan Pacific Swimming Championships – Women's 800 metre freestyle

The women's 800 metre freestyle competition at the 2018 Pan Pacific Swimming Championships took place on August 9 at the Tokyo Tatsumi International Swimming Center. The defending champion was Katie Ledecky of United States.

This event was a timed-final where each swimmer swam just once. Early heat was swum at the end of the preliminary heats on that day from slowest to fastest. The fastest timed final heat was swum with the finals.

## Records

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

| World record | Katie Ledecky (USA) | 8:04.79 | Rio de Janeiro, Brazil | 12 August 2016 |
| - | - | - | - | - |
| Pan Pacific Championships record | Katie Ledecky (USA) | 8:11.35 | Gold Coast, Australia | 21 August 2014 |

## Results

All times are in minutes and seconds.

| KEY: | CR | Championships record | NR | National record | PB | Personal best | SB | Seasonal best |
| - | - | - | - | - | - | - | - | - |

The timed final was held on 9 August from 10:00 to the slowest heats and from 17:30 to the fastest heat.

Only two swimmers from each country was classified in the award ranking.

### Total ranking

| Rank | Heat | Name | Nationality | Time | Notes |
| - | - | - | - | - | - |
| 1 | 3 | Katie Ledecky | United States | 8:09.13 | CR |
| 2 | 3 | Ariarne Titmus | Australia | 8:17.07 | OC |
| 3 | 3 | Leah Smith | United States | 8:17.21 | |
| 4 | 3 | Kiah Melverton | Australia | 8:25.64 | |
| 5 | 2 | Erica Sullivan | United States | 8:26.27 | |
| 6 | 2 | Haley Anderson | United States | 8:27.13 | |
| 7 | 2 | Madeleine Gough | Australia | 8:27.28 | |
| 8 | 2 | Ashley Twichell | United States | 8:29.36 | |
| 9 | 3 | Waka Kobori | Japan | 8:31.89 | |
| 10 | 3 | Mackenzie Padington | Canada | 8:34.49 | |
| 11 | 2 | Chase Travis | United States | 8:37.86 | |
| 12 | 3 | Yukimi Moriyama | Japan | 8:41.44 | |
| 13 | 2 | Kate Sanderson | Canada | 8:43.99 | |
| 14 | 3 | Zhang Ke | China | 8:44.17 | |
| 15 | 2 | Nicole Oliva | Philippines | 8:53.21 | |
| 16 | 1 | Rosalee Santa Ana | Philippines | 9:12.04 | |
| 17 | 1 | Osisang Chilton | Palau | 10:40.45 | |
| 18 | 1 | Mineri Gomez | Guam | 10:58.33 | |

### Award ranking

| Rank | Name | Nationality | Time | Notes |
| - | - | - | - | - |
| | Katie Ledecky | United States | 8:09.13 | CR |
| | Ariarne Titmus | Australia | 8:17.07 | OC |
| | Leah Smith | United States | 8:17.21 | |
| 4 | Kiah Melverton | Australia | 8:25.64 | |
| 5 | Waka Kobori | Japan | 8:31.89 | |
| 6 | Mackenzie Padington | Canada | 8:34.49 | |
| 7 | Yukimi Moriyama | Japan | 8:41.44 | |
| 8 | Kate Sanderson | Canada | 8:43.99 | |
