Swimming at the 2018 Summer Youth Olympics – Girls' 50 metre freestyle

The heats were started on 11 October at 10:33.[2]

Rank	Heat	Lane	Name	Nationality	Time	Notes
1	7	4	Barbora Seemanová	Czech Republic	25.44	Q
2	6	1	Yang Junxuan	China	25.65	Q
2	7	5	Neža Klančar	Slovenia	25.65	Q
4	7	3	Kate Douglass	United States	25.71	Q
5	5	3	Mona McSharry	Ireland	25.76	Q
6	5	4	Mayuka Yamamoto	Japan	25.80	Q
7	7	2	Kalia Antoniou	Cyprus	25.86	Q
8	6	5	Elizaveta Klevanovich	Russia	25.99	Q
8	6	6	Abbey Webb	Australia	25.99	Q
10	6	2	Diana Petkova	Bulgaria	26.00	Q
11	5	6	Julieta Lema	Argentina	26.02	Q
12	5	2	Nea-Amanda Heinola	Finland	26.08	Q
13	6	4	Angelina Köhler	Germany	26.15	Q, WD
14	7	6	Kyla Leibel	Canada	26.19	Q
15	6	3	Kornelia Fiedkiewicz	Poland	26.21	Q
16	5	1	Elinah Phillip	British Virgin Islands	26.22	Q
17	7	1	Alena Semizhon	Belarus	26.32	Q
18	7	7	Nagisa Ikemoto	Japan	26.52
19	7	8	Anicka Delgado	Ecuador	26.78
20	6	7	Ieva Maļuka	Latvia	26.80
21	5	7	Madelyn Moore	Bermuda	26.81
22	4	8	Christie Chue	Singapore	26.83
23	4	1	Tayde Sansores	Mexico	27.01
24	5	5	Karolina Jurczyk	Poland	27.07
25	4	7	Tamara Potocká	Slovakia	27.10
26	4	2	Enjy Mohamed Abouzaid	Egypt	27.12
27	5	8	Natalya Kritinina	Uzbekistan	27.13
28	3	4	Inés Marín	Chile	27.16
28	4	3	Sara Junevik	Sweden	27.16
30	6	8	Arina Baikova	Latvia	27.22
31	4	6	Snæfríður Sól Jórunnardóttir	Iceland	27.34
32	4	5	Mariel Mencía	Dominican Republic	27.37
33	4	4	Emily MacDonald	Jamaica	27.51
34	3	3	Maria Perez Garcia	Luxembourg	27.57
35	3	5	Samantha Roberts	Antigua and Barbuda	28.26
36	3	6	Mia Phiri	Zambia	28.28
37	3	1	Jadyn George	Guyana	29.15
38	3	7	Melisa Zhdrella	Kosovo	29.41
39	3	8	Ashley Chai	Brunei	29.52
40	3	2	Lara Al Yafei	Oman	29.59
41	2	4	Margie Winter	Federated States of Micronesia	29.80
42	1	7	Anastasiya Tyurina	Tajikistan	29.92
43	2	3	Ramatoulaye Kamara	Senegal	30.34
44	2	5	Royline Akiwo	Palau	31.27
45	1	4	Mera Abushammaleh	Palestine	31.78
46	1	6	Nafissath Radji	Benin	31.93
47	2	6	Tayamika Chang'anamuno	Malawi	32.12
48	2	1	Sompathana Chamberlain	Laos	32.73
49	2	7	Kayla Hepler	Marshall Islands	32.81
50	2	2	Ria Adams	Saint Vincent and the Grenadines	33.26
51	2	8	Chloe Sauvourel	Central African Republic	34.54
52	1	2	Rita Ekomba	Equatorial Guinea	42.22
53	1	3	Gniene Sessouma	Burkina Faso	42.29
	1	5	Maria Abdallah Attoumani	Comoros	DSQ

The semifinals were started on 11 October at 18:32.[3]

Rank	Heat	Lane	Name	Nationality	Time	Notes
1	2	4	Barbora Seemanová	Czech Republic	25.33	Q
2	2	3	Mona McSharry	Ireland	25.42	Q
3	1	4	Yang Junxuan	China	25.43	Q
4	2	5	Neža Klančar	Slovenia	25.47	Q
5	1	2	Diana Petkova	Bulgaria	25.53	Q
6	1	5	Kate Douglass	United States	25.57	Q
7	1	3	Mayuka Yamamoto	Japan	25.62	Q
8	1	6	Elizaveta Klevanovich	Russia	25.74	Q
9	1	1	Kornelia Fiedkiewicz	Poland	25.76
10	2	1	Kyla Leibel	Canada	25.77
11	2	2	Abbey Webb	Australia	25.80
12	2	6	Kalia Antoniou	Cyprus	25.95
13	2	7	Julieta Lema	Argentina	25.99
14	1	7	Nea-Amanda Heinola	Finland	26.49
15	1	8	Alena Semizhon	Belarus	26.56
15	2	8	Elinah Phillip	British Virgin Islands	26.56

The final was held on 12 October at 18:00.[4]

Rank	Lane	Name	Nationality	Time	Notes
	4	Barbora Seemanová	Czech Republic	25.14
	1	Mayuka Yamamoto	Japan	25.39
	3	Yang Junxuan	China	25.47
	6	Neža Klančar	Slovenia	25.47
5	5	Mona McSharry	Ireland	25.54
6	2	Diana Petkova	Bulgaria	25.56
7	7	Kate Douglass	United States	25.83
8	8	Elizaveta Klevanovich	Russia	26.05