1999 Pan Pacific Swimming Championships – Women's 100 metre butterfly

Women's 100 metre butterfly at the 1999 Pan Pacific Swimming Championships
Venue	Sydney International Aquatic Centre
Dates	August 22, 1999 (heats & semifinals) August 23, 1999 (final)
Competitors	28 from 8 nations
Winning time	57.88
Medalists
Jenny Thompson   United States   Susie O'Neill   Australia   Ayari Aoyama   Japan

The women's 100 metre butterfly competition at the 1999 Pan Pacific Swimming Championships took place on August 22–23 at the Sydney International Aquatic Centre. The last champion was Jenny Thompson of US.

This race consisted of two lengths of the pool, all in butterfly.

Records

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

World record	Mary T. Meagher (USA)	57.93	Brown Deer, United States	August 16, 1981
Pan Pacific Championships record	Jenny Thompson (USA)	59.00	Fukuoka, Japan	August 12, 1997

Results

All times are in minutes and seconds.

KEY:

q

Fastest non-qualifiers

Q

Qualified

CR

Championships record

NR

National record

PB

Personal best

SB

Seasonal best

Heats

The first round was held on August 22.

Rank	Name	Nationality	Time	Notes
1	Jenny Thompson	United States	59.26	Q
2	Susie O'Neill	Australia	59.43	Q
3	Misty Hyman	United States	59.89	Q
4	Ayari Aoyama	Japan	1:00.35	Q
5	Ashley Tappin	United States	1:00.76	Q
6	Maki Mita	Japan	1:00.84	Q
7	Richelle DePold-Fox	United States	1:00.85	Q
8	Tomoko Hagiwara	Japan	1:01.04	Q
9	Karine Chevrier	Canada	1:01.13	Q
10	Junko Onishi	Japan	1:01.34	Q
11	Jessica Deglau	Canada	1:01.47	Q
12	Jennifer Button	Canada	1:01.83	Q
13	Molly Freedman	United States	1:01.85	Q
14	Renate du Plessis	South Africa	1:02.05	Q
15	Pang Ran	China	1:02.20	Q
16	Andrea Schwartz	Canada	1:02.26	Q
17	Amanda Loots	South Africa	1:02.55
18	Kate Godfrey	Australia	1:02.59
19	Sarah Evanetz	Canada	1:02.66
20	Kelly Stefanyshyn	Canada	1:02.84
21	Angela Kennedy	Australia	1:02.87
22	Megan McMahon	Australia	1:03.00
23	Cho Hee-Yeon	South Korea	1:03.09
24	Kirsten van Heerden	South Africa	1:03.91
25	Candice Crafford	South Africa	1:04.64
26	Candice Nethercott	South Africa	1:04.74
27	Kuan Chia-hsien	Chinese Taipei	1:07.29
28	Sung Yi-chieh	Chinese Taipei	1:07.31

Semifinals

The semifinals were held on August 22.

Rank	Name	Nationality	Time	Notes
1	Jenny Thompson	United States	58.57	Q, CR
2	Susie O'Neill	Australia	59.44	Q
3	Ayari Aoyama	Japan	1:00.13	Q
4	Misty Hyman	United States	1:00.16	Q
5	Richelle DePold-Fox	United States	1:00.17	Q
6	Jessica Deglau	Canada	1:00.48	Q
7	Tomoko Hagiwara	Japan	1:00.51	Q
8	Maki Mita	Japan	1:00.54	Q
9	Ashley Tappin	United States	1:00.65
10	Karine Chevrier	Canada	1:00.91
11	Junko Onishi	Japan	1:01.22
12	Jennifer Button	Canada	1:01.44
13	Amanda Loots	South Africa	1:01.71
14	Renate du Plessis	South Africa	1:01.89
15	Pang Ran	China	1:01.92
16	Andrea Schwartz	Canada	1:02.59

Final

The final was held on August 23.

Rank	Lane	Nationality	Time	Notes
	Jenny Thompson	United States	57.88	WR
	Susie O'Neill	Australia	59.07
	Ayari Aoyama	Japan	59.58
4	Misty Hyman	United States	1:00.39
5	Tomoko Hagiwara	Japan	1:00.63
6	Jessica Deglau	Canada	1:00.72
7	Amanda Loots	South Africa	1:01.54
8	Karine Chevrier	Canada	1:01.57