The Women's 50 metre breaststroke competition at the 2017 World Championships was held on 29 and 30 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 30 July Final Lilly King 29.40

Results Heats The heats were held on 29 July at 10:07.Heats results

Rank Heat Lane Name Nationality Time Notes 1 6 4 29.76 Q 2 5 4 29.99 Q 3 5 3 30.33 Q, NR 4 6 5 30.37 Q 5 4 5 30.40 Q 6 4 4 30.58 Q 7 5 6 30.59 Q 8 5 5 30.71 Q 9 4 2 30.81 Q 10 6 6 30.82 Q 11 4 6 30.88 Q 12 6 7 30.89 Q 13 4 3 30.92 Q 14 6 3 30.95 Q 15 5 1 31.02 Q 16 4 1 Suo Ran 31.22 Q 17 6 8 31.29 18 4 7 31.31 19 6 2 31.33 20 5 2 31.44 21 5 7 31.65 NR 22 6 1 31.69 23 4 8 31.70 24 3 4 31.75 25 6 0 31.91 26 5 0 31.92 27 4 0 31.94 28 5 8 32.04 29 4 9 32.24 30 6 9 32.59 31 5 9 32.62 32 3 6 32.72 33 3 2 33.46 NR 34 3 5 33.77 35 3 3 33.85 36 3 7 34.40 37 3 8 34.88 38 3 1 34.91 39 1 4 Jang Myong-gyong 35.11 40 2 1 35.85 41 2 3 36.53 42 2 4 36.97 43 3 0 37.06 44 2 7 37.89 45 1 7 38.47 46 2 2 38.67 47 1 6 39.74 48 2 0 40.57 49 2 6 42.03 50 1 1 46.49 51 3 9 49.38 52 2 5 53.04 1 2 2 8 2 9

Semifinals The semifinals were held on 29 July at 17:56.Semifinals results

Semifinal 1 Rank Lane Name Nationality Time Notes 1 4 Yuliya Yefimova 29.73 Q 2 5 Katie Meili 30.12 Q 3 3 Rūta Meilutytė 30.40 Q 4 6 Sarah Vasey 30.46 Q 5 2 Jenna Laukkanen 30.92 6 1 Satomi Suzuki 30.95 7 7 Veera Kivirinta 30.98 8 8 Suo Ran 31.14

Semifinal 2 Rank Lane Name Nationality Time Notes 1 4 Lilly King 29.60 Q, AM 2 3 Jennie Johansson 30.41 Q 3 5 Arianna Castiglioni 30.46 Q 4 8 Rachel Nicol 30.49 Q 5 6 Jessica Hansen 30.67 6 7 Hrafnhildur Lúthersdóttir 30.71 NR 7 2 Natalia Ivaneeva 30.82 8 1 Martina Carraro 31.16

Final The final was held on 30 July at 17:32.Final results

Rank Lane Name Nationality Time Notes 4 Lilly King 29.40 WR 5 Yuliya Yefimova 29.57 3 Katie Meili 29.99 4 6 Rūta Meilutytė 30.20 5 2 Jennie Johansson 30.31 6 7 Sarah Vasey 30.62 7 1 Arianna Castiglioni 30.74 8 8 Rachel Nicol 30.80

References