2018 Pan Pacific Swimming Championships – Women's 100 metre backstroke
# 2018 Pan Pacific Swimming Championships – Women's 100 metre backstroke

The women's 100 metre backstroke competition at the 2018 Pan Pacific Swimming Championships took place on August 10 at the Tokyo Tatsumi International Swimming Center. The defending champion was Emily Seebohm of Australia.

## Records

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

| World record | Kathleen Baker (USA) | 58.00 | Irvine, United States | 28 July 2018 |
| - | - | - | - | - |
| Pan Pacific Championships record | Emily Seebohm (AUS) | 58.84 | Gold Coast, Australia | 21 August 2014 |

## Results

All times are in minutes and seconds.

| KEY: | QA | Qualified A Final | QB | Qualified B Final | CR | Championships record | NR | National record | PB | Personal best | SB | Seasonal best |
| - | - | - | - | - | - | - | - | - | - | - | - | - |

### Heats

The first round was held on 10 August from 10:00.

Only two swimmers from each country may advance to the A or B final. If a country not qualify any swimmer to the A final, that same country may qualify up to three swimmers to the B final.

| Rank | Name | Nationality | Time | Notes |
| - | - | - | - | - |
| 1 | Kylie Masse | Canada | 58.29 | QA, CR |
| 2 | Kathleen Baker | United States | 58.41 | QA |
| 3 | Emily Seebohm | Australia | 58.79 | QA |
| 4 | Regan Smith | United States | 59.27 | QA |
| 5 | Natsumi Sakai | Japan | 59.45 | QA |
| 6 | Olivia Smoliga | United States | 59.47 | QB |
| 7 | Kaylee McKeown | Australia | 59.91 | QA |
| 8 | Anna Konishi | Japan | 1:00.30 | QA |
| 9 | Kennedy Goss | Canada | 1:00.93 | QA |
| 10 | Isabella Arcila | Colombia | 1:01.54 | QB |
| 11 | Alex Galyer | New Zealand | 1:01.61 | QB |
| 12 | Danielle Hanus | Canada | 1:01.78 | QB |
| 13 | Yang Yifan | China | 1:02.20 | QB |
| 14 | Chloe Isleta | Philippines | 1:05.08 | QB |
| 15 | Gianna Garcia | Philippines | 1:12.93 | QB |
| 16 | Osisang Chilton | Palau | 1:18.54 | QB |
| – | Taylor Ruck | Canada | DNS | |
| – | Sayaka Akase | Japan | DNS | |
| – | McKenna DeBever | Peru | DSQ | |

### B Final

The B final was held on 10 August from 18:00.

| Rank | Name | Nationality | Time |
| - | - | - | - |
| 9 | Olivia Smoliga | United States | 59.20 |
| 10 | Isabella Arcila | Colombia | 1:01.39 |
| 11 | Yang Yifan | China | 1:01.58 |
| 12 | Alex Galyer | New Zealand | 1:01.67 |
| 13 | Danielle Hanus | Canada | 1:01.68 |
| 14 | Chloe Isleta | Philippines | 1:05.03 |
| 15 | Gianna Garcia | Philippines | 1:11.66 |
| 16 | Osisang Chilton | Palau | 1:17.14 |

### A Final

The A final was held on 10 August from 18:00.

| Rank | Name | Nationality | Time |
| - | - | - | - |
| | Kylie Masse | Canada | 58.61 |
| | Emily Seebohm | Australia | 58.72 |
| | Kathleen Baker | United States | 58.83 |
| 4 | Regan Smith | United States | 58.95 |
| 5 | Kaylee McKeown | Australia | 59.25 |
| 6 | Natsumi Sakai | Japan | 59.33 |
| 7 | Kennedy Goss | Canada | 1:00.90 |
| – | Anna Konishi | Japan | DSQ |
