The men'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 Ryosuke Irie of Japan.

Records Prior to this competition, the existing world and Pan Pacific records were as follows: World record51.85Rio de Janeiro, Brazil13 August 2016Pan Pacific Championships record52.91Gold 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 Ryan Murphy 52.19 QA, CR 2 Matthew Grevers 53.27 QA 3 Ryosuke Irie 53.68 QA 4 Michael Andrew 53.69 QB 4 Justin Ress 53.69 QB 6 Mitch Larkin 53.73 QA 7 Markus Thormeyer 53.88 QA 8 Jacob Pebley 53.96 9 Javier Acevedo 54.13 QA 10 Austin Katz 54.17 11 Masaki Kaneko 54.27 QA 12 Bradley Woodward 54.36 QA 13 Gabriel Fantoni 54.40 QB 14 Wang Yutian 56.06 QB 15 Shunichi Nakao 56.12 QB 16 Josiah Binnema 56.53 QB, 17 Armand Chan 1:02.98 QB 18 Noel Keane 1:06.71 QB, NR

B Final The B final was held on 10 August from 18:00. Rank Name Nationality Time Notes 9 Michael Andrew 53.55 10 Justin Ress 53.59 11 Gabriel Fantoni 53.92 12 Shunichi Nakao 55.77 13 Wang Yutian 55.83 14 Armand Chan 1:02.18 15 Noel Keane 1:06.49 NR

A Final The A final was held on 10 August from 18:00. Rank Name Nationality Time Notes Ryan Murphy 51.94 CR Ryosuke Irie 52.78 Mitch Larkin 52.88 4 Matthew Grevers 52.99 5 Javier Acevedo 53.90 6 Markus Thormeyer 54.02 7 Masaki Kaneko 54.33 8 Bradley Woodward 54.34

References