The men's 200 metre breaststroke competition at the 2023 World Aquatics Championships was held on 27 and 28 July 2023.

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 28 July Final Qin Haiyang 2:05.48 WR

Results Heats The heats were started on 27 July at 11:28.

Rank Heat Lane Name Nationality Time Notes 1 5 4 Zac Stubblety-Cook 2:08.98 Q 2 3 6 Caspar Corbeau 2:09.29 Q 3 5 5 Matthew Fallon 2:09.32 Q 4 3 2 Aleksas Savickas 2:09.66 Q 5 3 4 Qin Haiyang 2:09.86 Q 6 4 3 Josh Matheny 2:09.90 Q 7 4 6 Dong Zhihao 2:10.06 Q 8 4 5 Ippei Watanabe 2:10.11 Q 9 5 6 Anton McKee 2:10.29 Q 10 5 3 Arno Kamminga 2:10.47 Q 11 3 3 Erik Persson 2:10.51 Q 11 5 7 Antoine Marc 2:10.51 Q 13 4 8 Lyubomir Epitropov 2:10.76 Q 14 5 2 Matti Mattsson 2:11.00 Q 15 3 5 Shoma Sato 2:11.03 Q 16 4 9 Maksym Ovchinnikov 2:11.71 Q 17 4 7 Dawid Wiekiera 2:11.92 18 2 5 Darragh Greene 2:12.21 19 3 1 Christopher Rothbauer 2:12.29 20 3 0 Adam John Chillingworth 2:12.30 21 2 2 Ron Polonsky 2:12.34 22 4 2 Miguel de Lara 2:12.40 23 5 1 Greg Butler 2:12.52 24 5 8 Noah De Schryver 2:12.63 25 5 9 Berkay Ömer Öğretir 2:12.65 26 3 7 Cho Sung-jae 2:12.77 27 5 0 Amro Al-Wir 2:12.90 28 4 1 Carles Coll 2:13.09 29 2 3 Joshua Gilbert 2:13.59 30 4 0 Brayden Taivassalo 2:13.81 31 3 9 Maximillian Wei Ang 2:14.63 32 2 6 Daniils Bobrovs 2:15.95 33 2 7 Tyler Christianson 2:17.43 34 2 4 Phạm Thanh Bảo 2:17.89 35 2 9 Liam Davis 2:18.45 36 2 1 Constantin Malachi 2:18.87 37 2 8 Julio Horrego 2:20.70 38 2 0 Adriel Sanes 2:22.20 39 1 3 Luis Sebastian Weekes 2:22.94 40 1 5 Jonathan Chung Yee 2:23.21 41 1 4 Abdulaziz Al-Obaidly 2:24.01 42 1 6 Andrej Stojanovski 2:25.40 43 1 2 Bransly Dirksz 2:28.73 4 4 Léon Marchand Did not start 3 8 Denis Petrashov Disqualified

Semifinals The semifinals were held on 27 July at 20:43.

Rank Heat Lane Name Nationality Time Notes 1 2 4 Zac Stubblety-Cook 2:07.27 Q 2 2 3 Qin Haiyang 2:07.70 Q 3 2 5 Matthew Fallon 2:07.90 Q 4 2 6 Dong Zhihao 2:08.47 Q, WJ 5 1 4 Caspar Corbeau 2:08.49 Q 6 1 3 Josh Matheny 2:09.04 Q 7 2 2 Anton McKee 2:09.19 Q 8 1 6 Ippei Watanabe 2:09.50 Q 9 2 7 Erik Persson 2:09.89 10 1 1 Matti Mattsson 2:09.93 11 1 5 Aleksas Savickas 2:10.16 12 1 2 Arno Kamminga 2:10.57 13 1 7 Antoine Marc 2:10.66 14 2 8 Shoma Sato 2:10.72 15 2 1 Lyubomir Epitropov 2:11.28 16 1 8 Maksym Ovchinnikov 2:11.95

Final The final was held on 28 July at 21:24.

Rank Lane Name Nationality Time Notes 5 Qin Haiyang 2:05.48 WR 4 Zac Stubblety-Cook 2:06.40 3 Matthew Fallon 2:07.74 4 6 Dong Zhihao 2:08.04 WJ 5 2 Caspar Corbeau 2:08.42 6 8 Ippei Watanabe 2:08.78 7 1 Anton McKee 2:09.50 8 7 Josh Matheny 2:10.41

References