| Event: | Women's 800 metre freestyle |
| Competition: | 2018 Pan Pacific Swimming Championships |
| Venue: | Tokyo Tatsumi International Swimming Center |
| Dates: | 9 August (timed finals) |
| Competitors: | 18 |
| Nations: | 8 |
| Win Value: | 8:09.13 |
| Gold: | Katie Ledecky |
| Goldnoc: | USA |
| Silver: | Ariarne Titmus |
| Silvernoc: | AUS |
| Bronze: | Leah Smith |
| Bronzenoc: | USA |
| Prev: | 2014 |
| Next: | 2022 |
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.[1] The defending champion was Katie Ledecky of United States.[2]
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.[3]
Prior to this competition, the existing world and Pan Pacific records were as follows:
| World record | 8:04.79 | Rio de Janeiro, Brazil | 12 August 2016 | ||
| Pan Pacific Championships record | 8:11.35 | Gold Coast, Australia | 21 August 2014 |
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.[4]
Only two swimmers from each country was classified in the award ranking.[3]
| Rank | Heat | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 1 | 3 | 8:09.13 | CR | |||
| 2 | 3 | 8:17.07 | OC | |||
| 3 | 3 | 8:17.21 | ||||
| 4 | 3 | 8:25.64 | ||||
| 5 | 2 | 8:26.27 | ||||
| 6 | 2 | 8:27.13 | ||||
| 7 | 2 | 8:27.28 | ||||
| 8 | 2 | 8:29.36 | ||||
| 9 | 3 | 8:31.89 | ||||
| 10 | 3 | 8:34.49 | ||||
| 11 | 2 | 8:37.86 | ||||
| 12 | 3 | 8:41.44 | ||||
| 13 | 2 | 8:43.99 | ||||
| 14 | 3 | 8:44.17 | ||||
| 15 | 2 | 8:53.21 | ||||
| 16 | 1 | 9:12.04 | ||||
| 17 | 1 | 10:40.45 | ||||
| 18 | 1 | 10:58.33 |
| Rank | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|
| 8:09.13 | CR | ||||
| 8:17.07 | OC | ||||
| 8:17.21 | |||||
| 4 | 8:25.64 | ||||
| 5 | 8:31.89 | ||||
| 6 | 8:34.49 | ||||
| 7 | 8:41.44 | ||||
| 8 | 8:43.99 |