2018 Pan Pacific Swimming Championships – Men's 100 metre butterfly

Men's 100 metre butterfly at the 2018 Pan Pacific Swimming Championships
Venue	Tokyo Tatsumi International Swimming Center
Dates	11 August (heats & finals)
Competitors	27 from 10 nations
Winning time	50.75
Medalists
Caeleb Dressel   United States   Jack Conger   United States   Vinicius Lanza   Brazil

The men's 100 metre butterfly competition at the 2018 Pan Pacific Swimming Championships took place on August 11 at the Tokyo Tatsumi International Swimming Center. The defending champion was Michael Phelps of the United States.

Records

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

World record	Michael Phelps (USA)	49.82	Rome, Italy	1 August 2009
Pan Pacific Championships record	Michael Phelps (USA)	50.86	Irvine, United States	20 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 11 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	Caeleb Dressel	United States	51.69	QA
2	Jack Conger	United States	51.76	QA
3	Vinicius Lanza	Brazil	51.98	QA
4	Grant Irvine	Australia	51.99	QA
4	Michael Andrew	United States	51.99	QB
6	Yuki Kobori	Japan	52.23	QA
7	Iago Moussalem	Brazil	52.27	QA
8	Zach Harting	United States	52.46	QB
9	David Morgan	Australia	52.47	QA
10	Yuya Yajima	Japan	52.86	QA
11	Josiah Binnema	Canada	53.04	QB
12	Will Pisani	Canada	53.13	QB
13	Leonardo de Deus	Brazil	53.14	QB
14	Shen Jiahao	China	53.16	QB
15	Mack Darragh	Canada	53.18	QB
16	Shinri Shioura	Japan	53.33	QB, WD
17	Nao Horomura	Japan	53.48	QB
18	Owen Daly	Canada	53.91
19	Zhou Shuchang	China	54.12
20	Jarod Hatch	Philippines	54.75
21	Ruslan Gaziev	Canada	54.97
22	Timothy Yen	Philippines	56.40
23	Rafael Barreto	Philippines	56.70
24	Armand Chan	Philippines	1:00.08
25	Noel Keane	Palau	1:02.43	NR
26	Nelson Batallones	Northern Mariana Islands	1:08.95
27	Mark Imazu	Guam	1:08.95

B Final

The B final was held on 11 August from 18:00.

Rank	Name	Nationality	Time	Notes
9	Michael Andrew	United States	51.53
10	Zach Harting	United States	52.16
11	Josiah Binnema	Canada	52.71
12	Shen Jiahao	China	52.81
13	Will Pisani	Canada	52.94
14	Leonardo de Deus	Brazil	53.19
15	Nao Horomura	Japan	53.26
16	Mack Darragh	Canada	53.71

A Final

The A final was held on 11 August from 18:00.

Rank	Name	Nationality	Time	Notes
	Caeleb Dressel	United States	50.75	CR
	Jack Conger	United States	51.32
	Vinicius Lanza	Brazil	51.44
4	Grant Irvine	Australia	51.65
5	David Morgan	Australia	51.80
6	Yuki Kobori	Japan	51.82
7	Iago Moussalem	Brazil	52.17
8	Yuya Yajima	Japan	52.70