2018 Pan Pacific Swimming Championships – Men's 50 metre freestyle
The men's 50 metre freestyle competition at the 2018 Pan Pacific Swimming Championships took place on August 12 at the Tokyo Tatsumi International Swimming Center. The defending champion was Bruno Fratus of Brazil.
Records
Prior to this competition, the existing world and Pan Pacific records were as follows:| World record | 20.91 | São Paulo, Brazil | 18 December 2009 | |
| Pan Pacific Championships record | 21.44 | Gold Coast, Australia | 24 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 12 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 | Michael Andrew | 21.83 | QA | |
| 2 | Caeleb Dressel | 22.17 | QA | |
| 3 | Katsumi Nakamura | 22.21 | QA | |
| 4 | Yuri Kisil | 22.28 | QA | |
| 5 | Shinri Shioura | 22.30 | QA | |
| 6 | Pedro Spajari | 22.32 | QA | |
| 7 | Marcelo Chierighini | 22.34 | QA | |
| 8 | Gabriel Santos | 22.49 | QB | |
| 9 | Daniel Hunter | 22.51 | QA | |
| 9 | Zachary Apple | 22.51 | QB | |
| 11 | Blake Pieroni | 22.53 | QB | |
| 12 | Shunichi Nakao | 22.54 | QB | |
| 13 | James Roberts | 22.56 | QB | |
| 14 | Will Pisani | 22.58 | QB | |
| 15 | Jack Cartwright | 22.60 | QB | |
| 16 | Owen Daly | 22.73 | QB | |
| 17 | Katsuhiro Matsumoto | 22.97 | ||
| 17 | Ruslan Gaziev | 22.97 | ||
| 19 | Alexander Graham | 23.06 | ||
| 20 | David Morgan | 23.07 | ||
| 21 | Reo Sakata | 23.14 | ||
| 22 | Marco Ferreira Júnior | 23.16 | ||
| 23 | Elijah Winnington | 23.28 | ||
| 24 | Liu Shaofeng | 23.35 | ||
| 25 | Jarod Hatch | 23.97 | ||
| 26 | Nao Horomura | 24.16 | ||
| 27 | Rafael Barreto | 24.52 | ||
| 28 | Samir Al-Adawi | 24.58 | ||
| 29 | Timothy Yen | 25.01 | ||
| 30 | Armand Chan | 25.35 | ||
| 31 | Noel Keane | 25.46 | ||
| 32 | Lennosuke Suzuki | 26.58 | ||
| 33 | Mark Imazu | 27.99 | ||
| 34 | Nelson Batallones | 29.74 | ||
| Grant Irvine | ||||
| Federico Grabich | ||||
| Nathan Adrian |
B Final
The B final was held on 12 August from 17:30.| Rank | Name | Nationality | Time | Notes |
| 9 | Blake Pieroni | 22.22 | ||
| 10 | Zachary Apple | 22.30 | ||
| 11 | Shunichi Nakao | 22.36 | ||
| 12 | Gabriel Santos | 22.39 | ||
| 13 | James Roberts | 22.47 | ||
| 14 | Jack Cartwright | 22.65 | ||
| 15 | Will Pisani | 22.66 | ||
| 16 | Owen Daly | 22.84 |
A Final
The A final was held on 12 August from 17:30.| Rank | Name | Nationality | Time | Notes |
| Michael Andrew | 21.46 | |||
| Caeleb Dressel | 21.93 | |||
| Yuri Kisil | 22.02 | |||
| 4 | Katsumi Nakamura | 22.24 | ||
| 5 | Shinri Shioura | 22.27 | ||
| 6 | Pedro Spajari | 22.30 | ||
| 7 | Daniel Hunter | 22.39 | ||
| 8 | Marcelo Chierighini | 22.50 |