Hosta

The Women's 100 metre freestyle competition at the 2017 World Championships was held on 27 and 28 July 2017.^[1][2]

Records

Prior to the competition, the existing world and championship records were as follows.

World record	Cate Campbell (AUS)	52.06	Brisbane, Australia	2 July 2016
Competition record	Britta Steffen (GER)	52.07	Rome, Italy	31 July 2009

During the competition, prior to this 100 metre event, on 23 July 2017, Sarah Sjöström set a new world record in the 4 × 100 metre freestyle relay final; her mark was at 51.71.

Date	Event	Name	Nationality	Time	Record
23 July	Women's 4 × 100 m freestyle relay final	Sarah Sjöström	Sweden	51.71	WR, CR

Results

Heats

The heats were held on 27 July at 09:30.^[3]

Rank	Heat	Lane	Name	Nationality	Time	Notes
1	8	4	Sarah Sjöström	Sweden	53.01	Q
2	7	6	Pernille Blume	Denmark	53.13	Q, NR
3	6	4	Simone Manuel	United States	53.17	Q
4	8	5	Penny Oleksiak	Canada	53.18	Q
5	6	5	Mallory Comerford	United States	53.42	Q
6	8	3	Ranomi Kromowidjojo	Netherlands	53.45	Q
7	7	5	Emma McKeon	Australia	53.47	Q
8	7	4	Bronte Campbell	Australia	53.56	Q
9	7	3	Federica Pellegrini	Italy	53.92	Q
10	6	6	Charlotte Bonnet	France	54.00	Q
	8	6	Zhu Menghui	China		Q
12	7	2	Sandrine Mainville	Canada	54.22	Q
13	6	3	Michelle Coleman	Sweden	54.23	Q
14	8	7	Freya Anderson	Great Britain	54.25	Q
15	6	1	Siobhan Haughey	Hong Kong	54.45	Q
16	6	7	Maud van der Meer	Netherlands	54.49	QSO
	8	1	Andrea Murez	Israel		QSO
18	7	7	Ai Yanhan	China	54.54
19	6	2	Silvia di Pietro	Italy	54.74
20	7	1	Maria Ugolkova	Switzerland	54.81
21	8	2	Rikako Ikee	Japan	54.91
22	8	8	Manuella Lyrio	Brazil	55.32
23	6	8	Signe Bro	Denmark	55.40
24	5	5	Erin Gallagher	South Africa	55.46
25	8	9	Farida Osman	Egypt	55.52
26	7	9	Anna Kolářová	Czech Republic	55.73
27	7	0	Yuliya Khitraya	Belarus	55.77
28	6	9	Fanni Gyurinovics	Hungary	55.86
29	8	0	Julie Meynen	Luxembourg	55.99
30	5	7	Bryndis Hansen	Iceland	56.11
31	5	6	Lotta Nevalainen	Finland	56.31
32	7	8	Rozaliya Nasretdinova	Russia	56.34
33	6	0	Susann Bjørnsen	Norway	56.56
	4	4	Anastasia Bogdanovski	North Macedonia
35	5	3	Gabrielle Fa'amausili	New Zealand	56.60
36	5	2	Jasmine Alkhaldi	Philippines	56.70
37	5	8	Gabriela Ņikitina	Latvia	56.77
38	5	1	McKenna de Bever	Peru	56.95
39	4	5	Karen Torrez	Bolivia	57.28
40	5	4	Liliana Ibáñez	Mexico	57.40
41	4	6	Julimar Avila	Honduras	57.82
42	5	9	Felicity Passon	Seychelles	57.99
43	4	2	Inés Remersaro	Uruguay	58.27
44	4	3	Kimiko Raheem	Sri Lanka	58.35
45	4	1	Matelita Buadromo	Fiji	58.53
46	1	3	Elodie Poo-cheong	Mauritius	58.76
47	5	0	Allyson Ponson	Aruba	58.81
48	3	4	Mónica Ramírez	Andorra	58.85	=NR
49	4	9	Arianna Sanna	Dominican Republic	59.03
50	3	2	Devyn Leask	Zimbabwe	59.08
	4	7	Bayan Jumah	Syria
52	1	2	Ani Poghosyan	Armenia	59.27
53	3	3	Talita Baqlah	Jordan	59.33
54	4	8	Catharine Cooper	Panama	59.37
55	3	1	Tan Chi Yan	Macau	59.38
56	4	0	Gabriela Santis	Guatemala	59.54
57	3	5	Jovana Terzić	Montenegro	59.86
58	3	8	Nikol Merizaj	Albania	1:00.04
59	3	9	Lani Cabrera	Barbados	1:00.75
60	2	1	Sonia Tumiotto	Tanzania	1:09.00
61	3	6	Ana Sofia Nóbrega	Angola	1:00.92
	1	6	Batbayaryn Enkhkhuslen	Mongolia
63	1	4	Gabriela Hernandez	Nicaragua	1:01.15
64	3	0	Jeanne Boutbien	Senegal	1:01.30
65	1	8	Park Mi-song	North Korea	1:02.24
66	2	5	Mikaili Charlemagne	Saint Lucia	1:02.59
67	2	4	Flaka Pruthi	Kosovo	1:03.81
68	2	3	Ann-Marie Hepler	Marshall Islands	1:04.01
69	2	8	Sofia Shah	Nepal	1:04.83
70	2	6	Bianca Mitchell	Antigua and Barbuda	1:05.06
71	2	2	Mineri Gomez	Guam	1:05.09
72	2	7	Charissa Panuve	Tonga	1:05.47
73	2	0	Anastasiya Tyurina	Tajikistan	1:09.14
74	1	1	Aminath Shajan	Maldives	1:10.17
75	2	9	Tayamika Chang'anamuno	Malawi	1:10.84
76	1	5	Jin Ju Thompson	Northern Mariana Islands	1:12.07
77	1	7	Lidwine Uwase	Rwanda	1:16.00
78	1	0	Imelda Ximenes Belo	East Timor	1:19.52
—	1	9	Lena Irankunda	Burundi	DNS

Swim-off

The swim-off was held on 27 July at 10:58.^[4]

Rank	Lane	Name	Nationality	Time	Notes
1	5	Andrea Murez	Israel	54.20	Q, NR
2	4	Maud van der Meer	Netherlands	54.49

Semifinals

The semifinals were held on 27 July at 17:41.^[5]

Semifinal 1

Rank	Lane	Name	Nationality	Time	Notes
1	4	Pernille Blume	Denmark	52.99	Q, NR
2	6	Bronte Campbell	Australia	53.04	Q
3	5	Penny Oleksiak	Canada	53.05	Q
4	3	Ranomi Kromowidjojo	Netherlands	53.09	Q
5	2	Charlotte Bonnet	France	53.77
6	1	Freya Anderson	Great Britain	53.91
7	7	Sandrine Mainville	Canada	54.01
8	8	Andrea Murez	Israel	54.62

Semifinal 2

Rank	Lane	Name	Nationality	Time	Notes
1	4	Sarah Sjöström	Sweden	52.44	Q
2	5	Simone Manuel	United States	52.69	Q
3	3	Mallory Comerford	United States	52.85	Q
4	6	Emma McKeon	Australia	53.20	Q
5	1	Michelle Coleman	Sweden	53.51
6	7	Zhu Menghui	China	53.85
7	8	Siobhán Haughey	Hong Kong	54.05
8	2	Federica Pellegrini	Italy	54.26

Final

The final was held on 28 July at 17:32.^[6]

Rank	Lane	Name	Nationality	Time	Notes
	5	Simone Manuel	United States	52.27	AM
	4	Sarah Sjöström	Sweden	52.31
	6	Pernille Blume	Denmark	52.69	NR
4	3	Mallory Comerford	United States	52.77
5	1	Ranomi Kromowidjojo	Netherlands	52.78
6	7	Penny Oleksiak	Canada	52.94
7	2	Bronte Campbell	Australia	53.18
8	8	Emma McKeon	Australia	53.21

References