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 record58.00Irvine, United States28 July 2018Pan Pacific Championships record58.84Gold Coast, Australia21 August 2014

Results All times are in minutes and seconds.

KEY:QAQualified A FinalQBQualified B FinalCRChampionships recordNRNational recordPBPersonal bestSBSeasonal 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 58.29 QA, CR 2 Kathleen Baker 58.41 QA 3 Emily Seebohm 58.79 QA 4 Regan Smith 59.27 QA 5 Natsumi Sakai 59.45 QA 6 Olivia Smoliga 59.47 QB 7 Kaylee McKeown 59.91 QA 8 Anna Konishi 1:00.30 QA 9 Kennedy Goss 1:00.93 QA 10 Isabella Arcila 1:01.54 QB 11 Alex Galyer 1:01.61 QB 12 Danielle Hanus 1:01.78 QB 13 Yang Yifan 1:02.20 QB 14 Chloe Isleta 1:05.08 QB 15 Gianna Garcia 1:12.93 QB 16 Osisang Chilton 1:18.54 QB Taylor Ruck Sayaka Akase McKenna DeBever

B Final The B final was held on 10 August from 18:00. Rank Name Nationality Time Notes 9 Olivia Smoliga 59.20 10 Isabella Arcila 1:01.39 11 Yang Yifan 1:01.58 12 Alex Galyer 1:01.67 13 Danielle Hanus 1:01.68 14 Chloe Isleta 1:05.03 15 Gianna Garcia 1:11.66 16 Osisang Chilton 1:17.14

A Final The A final was held on 10 August from 18:00. Rank Name Nationality Time Notes Kylie Masse 58.61 Emily Seebohm 58.72 Kathleen Baker 58.83 4 Regan Smith 58.95 5 Kaylee McKeown 59.25 6 Natsumi Sakai 59.33 7 Kennedy Goss 1:00.90 Anna Konishi

References