Swimming at the 1972 Summer Olympics – Men's 100 metre butterfly

Swimming events at the 1972 Summer Olympics
Freestyle
100 m	men	women
200 m	men	women
400 m	men	women
800 m		women
1500 m	men
Backstroke
100 m	men	women
200 m	men	women
Breaststroke
100 m	men	women
200 m	men	women
Butterfly
100 m	men	women
200 m	men	women
Individual medley
200 m	men	women
400 m	men	women
Freestyle relay
4×100 m	men	women
4×200 m	men
Medley relay
4×100 m	men	women

The men's 100 metre butterfly event at the 1972 Olympic Games took place between August 30 and 31. This swimming event used the butterfly stroke. Because an Olympic size swimming pool is 50 metres long, this race consisted of two lengths of the pool.

Medalists

Gold	Mark Spitz United States
Silver	Bruce Robertson Canada
Bronze	Jerry Heidenreich United States

Results

Heats

Heat 1

Rank	Athlete	Country	Time	Notes
1	Dave Edgar	United States	57.30	Q
2	Roger Pyttel	East Germany	57.98	Q
3	Peter Remmel	West Germany	58.97
4	Andrzej Chudziński	Poland	1:00.22
5	Alain Mosconi	France	1:00.23
6	Salvador Vilanova	El Salvador	1:01.25
7	Martin Edwards	Great Britain	1:01.29
8	Bruno Bassoul	Lebanon	1:05.45

Key: Q = Qualified

Heat 2

Rank	Athlete	Country	Time	Notes
1	Bruce Robertson	Canada	56.45	Q
2	István Szentirmay	Hungary	58.07	Q
3	Sérgio Waismann	Brazil	58.37	Q
4	Yasuhiro Komazaki	Japan	59.71
5	Hugo Valencia	Mexico	1:00.14
6	Feridun Aybars	Turkey	1:04:46
7	Chhay-Kheng Nhem	Cambodia	1:05.12
8	Wong Ronnie	23x15px Hong Kong	1:07.50

Key: Q = Qualified

Heat 3

Rank	Athlete	Country	Time	Notes
1	Roland Matthes	East Germany	57.16	Q
2	Neil Rogers	Australia	57.40	Q
3	John Mills	Great Britain	58.28	Q
4	Viktor Sharygin	Soviet Union	58.40
5	Arturo Lang-Lenton	23x15px Spain	59.22
6	Georgijs Kuļikovs	Soviet Union	59.28
7	Dimitrios Karydis	Greece	1:00.06
8	Roy Chan	Singapore	1:02.24

Key: Q = Qualified

Heat 4

Rank	Athlete	Country	Time	Notes
1	Jerry Heidenreich	United States	56.86	Q
2	Lutz Stoklasa	West Germany	57.50	Q
3	Bob Kasting	Canada	57.65	Q
4	Geoffrey Ferreira	Trinidad and Tobago	58.26	Q
5	Jacques Leloup	Belgium	58.77
6	Vladimir Krivtsov	Soviet Union	59.83
7	Carlos Singson	23x15px Philippines	1:02.11

Key: Q = Qualified

Heat 5

Rank	Athlete	Country	Time	Notes
1	Mark Spitz	United States	56.45	Q
2	Hartmut Flöckner	East Germany	57.41	Q
3	Juan Carlos Bello	Peru	57.54	Q
4	Byron MacDonald	Canada	57.56	Q
5	Hans Lampe	West Germany	59.00
6	Sean Maher	Great Britain	59.50
7	Vasil Dobrev	Bulgaria	1:00.07
8	Aleksandar Pavličević	Yugoslavia	1:00.29

Key: Q = Qualified

Semifinals

Heat 1

Rank	Athlete	Country	Time	Notes
1	Roland Matthes	East Germany	56.51	Q
2	Bruce Robertson	Canada	56.86	Q
3	Byron MacDonald	Canada	57.06	Q
4	Neil Rogers	Australia	57.28	Q
5	Roger Pyttel	East Germany	57.69
6	Sérgio Waismann	Brazil	58.07
7	Lutz Stoklasa	West Germany	58.33
8	Geoffrey Ferreira	Trinidad and Tobago	58.54

Heat 2

Rank	Athlete	Country	Time	Notes
1	Mark Spitz	United States	55.98	Q
2	Jerry Heidenreich	United States	56.18	Q
3	Dave Edgar	United States	56.88	Q
4	Hartmut Flöckner	East Germany	56.96	Q
5	Juan Carlos Bello	Peru	57.51
6	Bob Kasting	Canada	57.67
7	John Mills	Great Britain	58.13
8	István Szentirmay	Hungary	58.25

Final

Rank	Athlete	Country	Time	Notes
	Mark Spitz	United States	54.27	WR
	Bruce Robertson	Canada	55.56
	Jerry Heidenreich	United States	55.74
4	Roland Matthes	East Germany	55.87
5	David Edgar	United States	56.11
6	Byron MacDonald	Canada	57.27
7	Hartmut Flöckner	East Germany	57.40
8	Neil Rogers	Australia	57.90