The Women's 100 metre breaststroke competition at the 2017 World Championships was held on 24 and 25 July 2017.Schedule Start list

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

The following new records were set during this competition. Date Event Name Nationality Time Record 25 July Final Lilly King 1:04.13 , CR

Results Heats The heats were held on 24 July at 10:00.Heats results

Rank Heat Lane Name Nationality Time Notes 1 5 4 1:05.20 Q 2 6 4 1:05.60 Q 3 6 5 1:05.81 Q 4 4 4 1:06.39 Q 5 5 2 1:06.64 Q 6 4 3 1:06.85 Q 7 5 5 Shi Jinglin 1:06.94 Q 8 6 2 1:07.10 Q 9 6 1 1:07.12 Q 10 4 6 1:07.20 Q 10 6 7 1:07.20 Q 12 6 3 1:07.33 Q, 13 4 5 1:07.35 Q 14 5 6 1:07.39 Q15 4 1 1:07.43 Q 4 7 Q 17 4 2 1:07.48 Q 18 6 6 1:07.54 19 6 9 1:07.69 20 6 8 1:07.83 21 5 7 1:07.97 22 5 3 1:08.11 23 5 0 1:08.34 24 4 8 1:08.52 25 4 0 1:08.66 26 3 4 1:08.81 NR 5 8 Zhang Xinyu 28 6 0 1:09.91 29 3 5 1:10.11 30 5 9 1:10.13 31 4 9 1:10.16 32 5 1 1:10.30 33 3 3 1:10.49 34 3 2 1:10.89 35 3 6 1:11.61 36 2 5 1:12.65 NR 37 3 0 1:12.79 NR 38 2 3 Lei On Kei 1:14.11 39 3 7 1:14.13 40 3 9 1:14.14 41 1 5 Nguyễn Thị Nhất Lam 1:15.99 42 3 8 1:16.70 NR 43 2 4 1:16.91 44 1 6 1:17.48 NR 3 1 46 1 4 1:18.70 NR 47 1 3 Jang Myong-gyong 1:18.87 48 2 6 1:18.91 49 2 2 1:21.47 NR 50 1 2 1:21.84 NR 51 2 0 1:23.03 NR 52 2 9 1:26.13 NR 53 2 8 1:28.92 — 2 1

Semifinals The semifinals were started on 24 July at 17:58.Semifinals results

Semifinal 1 Rank Lane Name Nationality Time Notes 1 4 Yuliya Yefimova 1:04.36 Q, NR 2 5 Katie Meili 1:05.48 Q 3 3 Jessica Vall 1:06.62 Q 4 6 Rachel Nicol 1:07.03 5 2 Satomi Suzuki 1:07.08 6 1 Arianna Castiglioni 1:07.19 7 8 Reona Aoki 1:07.43 8 7 Jennie Johansson 1:07.93

Semifinal 2 Rank Lane Name Nationality Time Notes 1 4 Lilly King 1:04.53 Q 2 5 Rūta Meilutytė 1:05.06 Q 3 6 Shi Jinglin 1:06.47 Q 4 8 Kierra Smith 1:06.62 Q 5 7 Sarah Vasey 1:06.81 Q 6 3 Taylor McKeown 1:06.93 7 2 Jessica Hansen 1:07.21 8 1 Rikke Møller Pedersen 1:07.92

Final The final was held on 25 July at 19:17.Final results

Rank Lane Name Nationality Time Notes 5 Lilly King 1:04.13 6 Katie Meili 1:05.03 4 Yuliya Yefimova 1:05.05 4 3 Rūta Meilutytė 1:05.65 5 2 Shi Jinglin 1:06.43 6 1 Kierra Smith 1:06.90 7 7 Jessica Vall 1:06.95 8 8 Sarah Vasey 1:07.19

References