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

The women's 100 metre breaststroke competition at the 2018 Pan Pacific Swimming Championships took place on August 9 at the Tokyo Tatsumi International Swimming Center. The defending champion was Rebecca Soni of the United States.

## Records

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

| World record | Lilly King (USA) | 1:04.13 | Budapest, Hungary | 25 July 2017 |
| - | - | - | - | - |
| Pan Pacific Championships record | Rebecca Soni (USA) | 1:04.93 | Irvine, United States | 19 August 2010 |

## 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 9 August from 10:00.

Only two swimmers from each country may advance to the A or B final. If a country does 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 | Lilly King | United States | 1:05.76 | QA |
| 2 | Reona Aoki | Japan | 1:06.36 | QA |
| 3 | Micah Sumrall | United States | 1:06.44 | QA |
| 4 | Jessica Hansen | Australia | 1:06.63 | QA |
| 5 | Katie Meili | United States | 1:06.64 | QB |
| 6 | Bethany Galat | United States | 1:06.67 | QB |
| 6 | Satomi Suzuki | Japan | 1:06.67 | QA |
| 8 | Kanako Watanabe | Japan | 1:07.97 | QB, WD |
| 9 | Macarena Ceballos | Argentina | 1:08.01 | QA |
| 10 | Julia Sebastián | Argentina | 1:08.06 | QA |
| 11 | Kelsey Wog | Canada | 1:08.13 | QA |
| 12 | Kierra Smith | Canada | 1:08.22 | QB |
| 13 | Leiston Pickett | Australia | 1:08.36 | QB |
| 14 | Rachel Nicol | Canada | 1:08.51 | QB |
| 15 | Zheng Muyan | China | 1:12.07 | QB |
| 16 | Miranda Renner | Philippines | 1:16.20 | QB |

### B Final

The B final was held on 9 August from 17:30.

| Rank | Name | Nationality | Time |
| - | - | - | - |
| 9 | Bethany Galat | United States | 1:06.41 |
| 10 | Katie Meili | United States | 1:06.86 |
| 11 | Kierra Smith | Canada | 1:08.34 |
| 12 | Rachel Nicol | Canada | 1:08.50 |
| 13 | Leiston Pickett | Australia | 1:08.65 |
| 14 | Zheng Muyan | China | 1:11.14 |
| 15 | Miranda Renner | Philippines | 1:15.19 |

### A Final

The A final was held on 9 August from 17:30.

| Rank | Name | Nationality | Time |
| - | - | - | - |
| | Lilly King | United States | 1:05.44 |
| | Jessica Hansen | Australia | 1:06.20 |
| | Reona Aoki | Japan | 1:06.34 |
| 4 | Satomi Suzuki | Japan | 1:06.51 |
| 5 | Micah Sumrall | United States | 1:06.56 |
| 6 | Julia Sebastián | Argentina | 1:07.69 |
| 7 | Kelsey Wog | Canada | 1:07.91 |
| 8 | Macarena Ceballos | Argentina | 1:08.38 |
