Swimming at the 2024 Summer Olympics – Women's 100 metre breaststroke

Women's 100 metre breaststroke at the Games of the XXXIII Olympiad
Venue	Olympic Aquatics Centre, Paris La Défense Arena
Dates	28 July 2024 (Heats and Semis) 29 July 2024 (Final)
Competitors	37 from 32 nations
Winning time	1:05.28
Medalists
Tatjana Smith  South Africa Tang Qianting  China Mona McSharry  Ireland

The women's 100 metre breaststroke event at the 2024 Summer Olympics was held from 28 to 29 July 2024 at the Paris Aquatics Centre.

Records

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

World record	Lilly King (USA)	1:04.13	Budapest, Hungary	25 July 2017
Olympic record	Tatjana Schoenmaker (RSA)	1:04.82	Tokyo, Japan	25 July 2021

Qualification

Main article: Swimming at the 2024 Summer Olympics – Qualification

A National Olympic Committee (NOC) may enter a maximum of two qualified athletes in each individual event, but only if both of them have attained the Olympic Qualifying Time (OQT). One athlete per event can potentially enter if they meet the Olympic Consideration Time (OCT), or if the total quota of 852 athletes has not been targeted. NOCs may also permit swimmers regardless of time (one per gender) under a Universality place since they have no swimmers attaining either of the standard entry times (OQT/OCT).

Following the end of the qualification window, World Aquatics will assess the number of swimmers who have achieved the OQT, the number of relay-only swimmers, and the number of Universality places, before inviting those with OCT to fulfill the total quota of 852. Additionally, OCT places will be distributed by event according to the position of the World Aquatics Rankings during the qualifying deadline.

Time standards

The qualifying time standards must be obtained at the 2023 and 2024 World Championships, continental championships, continental swimming meets, national championships and selection trials, and various international meets approved by World Aquatics in the period between 1 March 2023 and 23 June 2024.

The following table outlines the qualifying time standards for Paris 2024 for this event:

Women's events
Event	OQT*	OCT^
100 m breaststroke	1:06.79	1:07.12

* OQTs correspond to the time achieved by a fourteenth-place swimmer in his or her respective preliminary heat of each event at the previous Games.

ª Because the fourteenth-place swimmer achieved a standard slower than the OQT in Tokyo 2020, the OQT used at the previous Games will remain constant.

^ OCTs are derived by adding 0.5% of the OQT standard.

Competition format

The competition consists of three rounds: heats, semifinals, and a final. The swimmers with the best 16 times in the heats advance to the semifinals. The swimmers with the best 8 times in the semifinals advance to the final. Swim-offs are used as necessary to break ties for advancement to the next round.

Schedule

All times are Central European Summer Time (UTC+2)

Date	Time	Round
28 July 2024	10:00	Heats
	19:37	Semifinals
29 July 2024	17:30	Final

Results

Heats

Rank	Heat	Lane	Swimmer	Nation	Time	Notes
1	4	5	Tatjana Smith	South Africa	1:05.00	Q
2	5	4	Tang Qianting	China	1:05.63	Q
3	5	3	Mona McSharry	Ireland	1:05.74	Q
4	4	6	Satomi Suzuki	Japan	1:06.04	Q
5	3	4	Lilly King	United States	1:06.10	Q
6	5	5	Benedetta Pilato	Italy	1:06.19	Q
7	3	2	Anastasia Gorbenko	Israel	1:06.22	Q, WD
8	5	7	Eneli Jefimova	Estonia	1:06.24	Q
9	4	4	Rūta Meilutytė	Lithuania	1:06.34	Q
10	4	1	Alina Zmushka	Individual Neutral Athletes	1:06.37	Q
	3	6	Lisa Angiolini	Italy	1:06.37	Q
12	3	5	Angharad Evans	Great Britain	1:06.38	Q
13	5	6	Sophie Hansson	Sweden	1:06.66	Q
14	4	3	Tes Schouten	Netherlands	1:06.69	Q
15	5	2	Kotryna Teterevkova	Lithuania	1:06.76	Q
16	4	8	Macarena Ceballos	Argentina	1:06.89	Q
17	4	7	Yang Chang	China	1:06.91	q
18	5	8	Sophie Angus	Canada	1:06.93
19	3	3	Reona Aoki	Japan	1:06.98
20	3	1	Anna Elendt	Germany	1:07.00
21	5	1	Dominika Sztandera	Poland	1:07.22
22	2	4	Jenna Strauch	Australia	1:07.27
23	3	8	Lisa Mamié	Switzerland	1:07.65
	4	2	Emma Weber	United States	1:07.65
25	3	7	Letitia Sim	Singapore	1:07.75
26	2	3	Ida Hulkko	Finland	1:08.73
27	2	5	Jessica Vall	Spain	1:08.78
28	2	6	Kristýna Horská	Czech Republic	1:08.96
29	2	2	Stefanía Gómez	Colombia	1:09.16
30	2	7	Emily Santos	Panama	1:09.94
31	2	1	Lynn El Hajj	Lebanon	1:10.27
32	2	8	Lanihei Connolly	Cook Islands	1:10.45
33	1	4	Rouxin Tan	Malaysia	1:12.50
34	1	5	Imane El Barodi	Morocco	1:14.57
35	1	3	Ellie Shaw	Antigua and Barbuda	1:14.78
36	1	6	Aminata Barrow	The Gambia	1:15.12
37	1	2	Lara Dashti	Kuwait	1:15.67

Semifinals

The swimmers with the best 8 times, regardless of heat, advanced to the final.

Rank	Heat	Lane	Swimmer	Nation	Time	Notes
1	2	4	Tatjana Smith	South Africa	1:05.00	Q
2	2	5	Mona McSharry	Ireland	1:05.51	Q, NR
3	2	3	Lilly King	United States	1:05.64	Q
4	1	4	Tang Qianting	China	1:05.83	Q
5	1	2	Alina Zmushka	Individual Neutral Athletes	1:05.93	Q, NR
6	2	7	Angharad Evans	Great Britain	1:05.99	Q
7	1	3	Benedetta Pilato	Italy	1:06.12	Q
8	2	6	Eneli Jefimova	Estonia	1:06.23	Q
9	1	6	Lisa Angiolini	Italy	1:06.39
10	2	1	Tes Schouten	Netherlands	1:06.56
11	2	2	Rūta Meilutytė	Lithuania	1:06.89
12	1	5	Satomi Suzuki	Japan	1:06.90
13	1	7	Sophie Hansson	Sweden	1:06.96
14	1	8	Yang Chang	China	1:07.20
15	2	8	Macarena Ceballos	Argentina	1:07.31
16	1	1	Kotryna Teterevkova	Lithuania	1:07.48

Final

Rank	Lane	Swimmer	Nation	Time	Notes
	4	Tatjana Smith	South Africa	1:05.28
	6	Tang Qianting	China	1:05.54
	5	Mona McSharry	Ireland	1:05.59
4	1	Benedetta Pilato	Italy	1:05.60
	3	Lilly King	United States	1:05.60
6	7	Angharad Evans	Great Britain	1:05.85
7	8	Eneli Jefimova	Estonia	1:06.50
8	2	Alina Zmushka	Individual Neutral Athletes	1:06.54