The Men's 100 metre breaststroke competition at the 2017 World Championships was held on 23 and 24 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 23 July Semifinal Adam Peaty 57.75 CR 24 July Final Adam Peaty 57.47 CR

Results Heats The heats were held on 23 July at 11:17.Heats results

Rank Heat Lane Name Nationality Time Notes 1 8 4 58.21 Q 2 8 5 59.14 Q 3 6 4 59.15 Q 4 8 3 59.24 Q 5 7 3 59.33 Q, WJ 6 8 7 59.36 Q, NR 7 6 3 59.51 Q 8 6 2 59.56 Q 9 6 5 Yan Zibei 59.61 Q 10 8 6 59.62 Q 11 7 5 59.76 Q 12 7 2 59.79 Q 13 8 1 59.84 Q 14 7 1 59.89 Q 15 8 8 59.91 Q 16 8 9 59.95 Q 17 8 2 59.97 18 6 1 1:00.08 19 7 0 1:00.08 NR 20 6 0 1:00.22 21 7 6 1:00.25 22 7 7 1:00.26 23 8 0 1:00.28 24 5 7 1:00.53 NR 25 6 6 1:00.60 26 6 8 1:00.76 27 7 8 1:00.79 28 7 9 1:00.83 29 4 1 1:00.96 30 6 7 1:01.51 31 5 4 1:01.56 32 5 1 1:01.74 33 5 8 1:01.81 34 5 6 Kim Jae-youn 1:01.86 35 6 9 1:01.91 36 5 0 1:01.92 37 5 5 1:01.93 38 5 9 1:01.95 39 4 5 1:01.96 40 4 4 1:02.15 41 4 3 1:02.22 42 5 3 1:02.26 43 3 4 Chao Man Hou 1:02.49 44 4 2 1:02.81 45 4 0 1:02.90 46 3 5 1:02.95 47 5 2 1:03.03 48 3 6 1:03.14 49 4 7 1:03.22 50 4 9 1:03.46 51 3 3 1:03.52 52 3 2 1:03.65 53 1 8 1:04.58 54 3 8 1:05.03 55 3 1 1:05.12 56 1 2 1:05.16 56 3 9 1:05.16 58 2 5 1:05.28 NR 59 1 6 1:05.30 60 3 7 1:05.61 61 2 7 1:05.70 62 2 3 1:06.96 63 3 0 1:07.22 64 2 0 1:07.37 65 2 2 1:07.59 66 1 4 1:08.10 67 2 6 1:08.17 68 2 4 1:08.50 69 1 7 1:10.62 70 1 9 1:11.34 NR 71 1 1 1:12.00 72 1 3 1:16.70 73 1 5 1:22.54 1 0 2 1 2 8 2 9 4 6 7 4 4 8 Lee Hsuan-yen

Semifinals The semifinals were held on 23 July at 18:21.Semifinals results

Semifinal 1 Rank Lane Name Nationality Time Notes 1 4 Cody Miller 59.08 Q 2 3 Kirill Prigoda 59.24 Q, NR 3 2 Felipe Lima 59.48 4 5 João Gomes Júnior 59.56 5 7 Giedrius Titenis 59.66 6 8 Arno Kamminga 59.76 6 6 Vsevolod Zanko 59.76 8 1 Richard Funk 59.92

Semifinal 2 Rank Lane Name Nationality Time Notes 1 4 Adam Peaty 57.75 Q, CR 2 5 Kevin Cordes 58.64 Q, AM 3 8 Andrius Šidlauskas 59.12 Q 4 2 Yan Zibei 59.15 Q 5 7 Yasuhiro Koseki 59.18 Q 6 6 Ross Murdoch 59.23 Q 7 3 Nicolò Martinenghi 59.41 8 1 Ilya Shymanovich 1:00.01

Final The final was held on 24 July at 17:32.Final results

Rank Lane Name Nationality Time Notes 4 Adam Peaty 57.47 CR 5 Kevin Cordes 58.79 8 Kirill Prigoda 59.05 NR 4 7 Yasuhiro Koseki 59.10 5 3 Cody Miller 59.11 6 6 Andrius Šidlauskas 59.21 7 2 Yan Zibei 59.42 8 1 Ross Murdoch 59.45

References