The men's 100 metre breaststroke event at the 1988 Summer Olympics took place between 18–19 September at the Jamsil Indoor Swimming Pool in Seoul, South Korea.

The winning margin was 0.01 seconds which as of 2023 remains the only time this event for men has been won at the Olympics by less than a tenth of a second.

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

Results

Heats Rule: The eight fastest swimmers advance to final A (Q), while the next eight to final B (q).

Rank Heat Name Nationality Time Notes 1 8 Adrian Moorhouse 1:02.19 Q, NR 2 6 Victor Davis 1:02.48 Q 3 8 Dmitry Volkov 1:02.49 Q 4 8 Károly Güttler 1:02.80 Q 5 7 Gianni Minervini 1:02.86 Q 6 8 Christian Poswiat 1:02.99 Q 7 7 Richard Schroeder 1:03.05 Q 8 7 Ronald Dekker 1:03.08 7 Tamás Debnár 10 6 Aleksey Matveyev 1:03.25 q 11 6 Alexander Mayer 1:03.54 q 12 8 Mark Warnecke 1:03.56 q 13 8 Petri Suominen 1:03.58 q 14 7 Hironobu Nagahata 1:04.02 q 15 6 Daniel Watters 1:04.04 q 16 6 Chen Jianhong 1:04.09 q 17 6 James Parrack 1:04.23 18 5 Kenji Watanabe 1:04.35 19 7 Pablo Restrepo 1:04.43 20 7 Raik Hannemann 1:04.46 21 5 Pierre-Yves Eberle 1:04.53 22 5 Ian McAdam 1:04.56 5 David Leblanc 24 4 Tsai Hsin-yen 1:04.58 25 4 Radek Beinhauer 1:04.61 26 3 Yoon Joo-il 1:04.68 27 7 Étienne Dagon 1:04.71 28 6 Alexander Marček 1:04.95 29 8 Thomas Böhm 1:04.96 30 5 Jin Fu 1:05.02 31 8 Cameron Grant 1:05.10 32 4 Joaquín Fernández 1:05.19 33 3 Sidney Appelboom 1:05.21 34 4 Gary O'Toole 1:05.34 35 3 Javier Careaga 1:05.37 36 5 Cédric Penicaud 1:05.46 37 5 Cícero Tortelli 1:05.50 38 6 Jan-Erick Olsen 1:05.54 39 4 Anthony Beks 1:05.65 40 2 Alexandre Yokochi 1:05.68 41 2 Ng Yue Meng 1:05.87 42 5 Eyal Stigman 1:05.92 43 4 Sergio López Miró 1:06.08 44 3 Wirmandi Sugriat 1:06.22 45 3 Luc van de Vondel 1:06.24 46 4 Richard Lockhart 1:06.27 47 4 Nikolaos Fokianos 1:06.30 48 2 Lars Sørensen 1:06.48 49 3 Manuel Gutiérrez 1:06.73 50 3 Patrick Concepcion 1:06.74 51 2 Arnþór Ragnarsson 1:07.93 52 2 Watt Kam Sing 1:08.03 53 3 Victor Ruberry 1:09.49 54 2 Quách Hoài Nam 1:10.90 55 2 Kraig Singleton 1:11.68 56 1 Michele Piva 1:13.94 57 1 Amine El-Domyati 1:14.40 58 2 Bazlur Mohamed Rahman 1:14.97 59 1 Gaspar Fragata 1:16.18 60 1 Obaid Al-Rumaithi 1:17.01 61 1 Vivaldo Fernandes 1:17.98 1 Trevor Ncala

Swimoff Rank Lane Name Nationality Time Notes 1 4 Ronald Dekker 1:02.63 Q, * 2 5 Tamás Debnár 1:03.68 Q * Opted to swim for the consolation final instead.

Finals

Final B Rank Lane Name Nationality Time Notes 9 5 Aleksey Matveyev 1:03.01 10 4 Ronald Dekker 1:03.22 11 6 Mark Warnecke 1:03.40 12 3 Alexander Mayer 1:03.85 13 7 Hironobu Nagahata 1:03.89 14 2 Petri Suominen 1:04.04 15 1 Daniel Watters 1:04.17 16 8 Chen Jianhong 1:04.72

Final A Rank Lane Name Nationality Time Notes 4 Adrian Moorhouse 1:02.04 NR 6 Károly Güttler 1:02.05 3 Dmitry Volkov 1:02.20 4 5 Victor Davis 1:02.38 5 8 Tamás Debnár 1:02.50 6 1 Richard Schroeder 1:02.55 7 2 Gianni Minervini 1:02.93 8 7 Christian Poswiat 1:03.43

References

External links Official Report USA Swimming