| | Event type
100 metres Butterfly, Men
| Date | 22 – 23 July 1980 |
|---|---|
| Status | Olympic |
| Location | Plavatelny basseyn, Sportivny kompleks Olimpiysky, Moskva |
| Participants | 34 from 29 countries |
Earlier in 1980 Sweden’s Pär Arvidsson had set the world record in the 100 fly with 54.15 at a meet in Austin, Texas. In Moscow it was rumored that he was feeling below par with a virus, but he still managed to win gold in the event, though his time of 54.92 did not approach his world record. Arvidsson had been bronze medalist in the 100 fly at the 1978 World Championships and a silver medalist at the 1977 Europeans. He graduated from U Cal Berkeley with a degree in economics and later attended Harvard Business School. The day before this final, West German Michael Groß swam 54.69 at a meet in Canada, and 10 days after the final, at the US Nationals, William Paulus won in 54.34, followed by Matt Gribble in 54.51.
| Pos | Swimmer | NOC | R1 | SF | Final | |||
|---|---|---|---|---|---|---|---|---|
| 1 | Pär Arvidsson |  SWE | 55.18 (1 h5) | 55.05 (2 h2) | 54.92 (1) | Gold | ||
| 2 | Roger Pyttel |  GDR | 55.99 (1 h4) | 55.63 (4 h2) | 54.94 (2) | Silver | ||
| 3 | David López-Zubero |  ESP | 55.54 (2 h5) | 55.47 (1 h1) | 55.13 (3) | Bronze | ||
| 4 | Cees Vervoorn |  NED | 55.76 (1 h2) | 55.02 (1 h2) | 55.25 (4) | |||
| 5 | Yevgeny Seredin |  URS | 55.83 (1 h3) | 55.62 (2 h1) | 55.35 (5) | |||
| 6 | Gary Abraham |  GBR | 56.10 (2 h3) | 55.53 (3 h2) | 55.42 (6) | |||
| 7 | Xavier Savin |  FRA | 56.07 (1 h1) | 55.67 (3 h1) | 55.66 (7) | |||
| 8 | Aleksey Markovsky | URS | 56.45 (2 h4) | 55.69 (4 h1) | 55.70 (8) | |||
| 9 | David Lowe | GBR | 56.22 (3 h1) | 55.81 (5 h2) | – | |||
| 10 | Miloslav Roľko |  TCH | 56.36 (3 h3) | 56.16 (6 h2) | – | |||
| 11 | Guy Goosen |  ZIM | 56.15 (2 h1) | 56.35 (5 h1) | – | |||
| 12 | Philip Hubble | GBR | 56.30 (3 h5) | 56.51 (6 h1) | – | |||
| 13 | Sergey Kiselyov | URS | 56.56 (2 h2) | 56.52 (7 h2) | – | |||
| 14 | Fabrizio Rampazzo |  ITA | 56.85 (4 h5) | 56.76 (7 h1) | – | |||
| 15 | Gábor Mészáros |  HUN | 56.88 (3 h4) | 56.89 (8 h2) | – | |||
| 16 | Bogusław Zychowicz |  POL | 57.21 (4 h4) | 57.43 (8 h1) | – | |||
| 17 | Yuliyan Vasilev |  BUL | 57.27 (3 h2) | – | – | |||
| 18 | Rafael Vidal |  VEN | 57.33 (4 h1) | – | – | |||
| 19 | Enrique Ledesma |  ECU | 57.35 (4 h2) | – | – | |||
| 20 | Cláudio Kestener |  BRA | 57.65 (4 h3) | – | – | |||
| 21 | Kurt Dittrich |  AUT | 57.71 (5 h2) | – | – | |||
| 22 | Vangelis Koskinas |  GRE | 57.84 (5 h3) | – | – | |||
| 23 | Paulo Frischknecht |  POR | 57.94 (5 h4) | – | – | |||
| 24 | Marcus Mattioli | BRA | 57.96 (5 h5) | – | – | |||
| 25 | Andrey Aguilar |  CRC | 58.35 (6 h3) | – | – | |||
| 26 | David Cummins |  IRL | 58.90 (6 h5) | – | – | |||
| 27 | Djamel Yahiouche |  ALG | 1:00.01 (5 h1) | – | – | |||
| 28 | Nguyễn Ðăng Bình |  VIE | 1:00.74 (7 h5) | – | – | |||
| 29 | Raimundo Franisse |  MOZ | 1:01.83 (6 h4) | – | – | |||
| 30 | Ibrahim El-Baba |  LBN | 1:05.20 (6 h1) | – | – | |||
| 31 | Mohamed Abdul Wahab |  KUW | 1:06.35 (6 h2) | – | – | |||
| 32 | Linos Petridis |  CYP | 1:06.61 (7 h3) | – | – | |||
| 33 | Marcos Daniel |  ANG | 1:07.46 (7 h1) | – | – | |||
| 34 | Zoë Andrianifaha |  MAD | 1:14.72 (7 h2) | – | – | |||
| Mark Tonelli |  AUS | – (DNS h4) | – | – |
Round One (22 July 1980 — 11:00)
Fastest 16 advanced to the semi-finals.
Heat One
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | 3 | Xavier Savin | FRA | 56.07 | |||
| 2 | 4 | Guy Goosen | ZIM | 56.15 | |||
| 3 | 5 | David Lowe | GBR | 56.22 | |||
| 4 | 6 | Rafael Vidal | VEN | 57.33 | |||
| 5 | 7 | Djamel Yahiouche | ALG | 1:00.01 | |||
| 6 | 1 | Ibrahim El-Baba | LBN | 1:05.20 | |||
| 7 | 2 | Marcos Daniel | ANG | 1:07.46 |
Heat Two
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | 4 | Cees Vervoorn | NED | 55.76 | |||
| 2 | 5 | Sergey Kiselyov | URS | 56.56 | |||
| 3 | 1 | Yuliyan Vasilev | BUL | 57.27 | |||
| 4 | 6 | Enrique Ledesma | ECU | 57.35 | |||
| 5 | 3 | Kurt Dittrich | AUT | 57.71 | |||
| 6 | 7 | Mohamed Abdul Wahab | KUW | 1:06.35 | |||
| 7 | 2 | Zoë Andrianifaha | MAD | 1:14.72 |
Heat Three
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | 4 | Yevgeny Seredin | URS | 55.83 | |||
| 2 | 5 | Gary Abraham | GBR | 56.10 | |||
| 3 | 3 | Miloslav Roľko | TCH | 56.36 | |||
| 4 | 6 | Cláudio Kestener | BRA | 57.65 | 1 | ||
| 5 | 1 | Vangelis Koskinas | GRE | 57.84 | |||
| 6 | 2 | Andrey Aguilar | CRC | 58.35 | |||
| 7 | 7 | Linos Petridis | CYP | 1:06.61 |
Heat Four
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | 4 | Roger Pyttel | GDR | 55.99 | |||
| 2 | 5 | Aleksey Markovsky | URS | 56.45 | |||
| 3 | 2 | Gábor Mészáros | HUN | 56.88 | |||
| 4 | 6 | Bogusław Zychowicz | POL | 57.21 | |||
| 5 | 1 | Paulo Frischknecht | POR | 57.94 | |||
| 6 | 7 | Raimundo Franisse | MOZ | 1:01.83 | |||
| 3 | Mark Tonelli | AUS | – |
Heat Five
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | 4 | Pär Arvidsson | SWE | 55.18 | |||
| 2 | 3 | David López-Zubero | ESP | 55.54 | |||
| 3 | 5 | Philip Hubble | GBR | 56.30 | |||
| 4 | 6 | Fabrizio Rampazzo | ITA | 56.85 | |||
| 5 | 2 | Marcus Mattioli | BRA | 57.96 | |||
| 6 | 1 | David Cummins | IRL | 58.90 | |||
| 7 | 7 | Nguyễn Ðăng Bình | VIE | 1:00.74 |
Semi-Finals (22 July 1980 — 19:00)
Fastest eight advanced to the final.
Heat One
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | 4 | David López-Zubero | ESP | 55.47 | |||
| 2 | 5 | Yevgeny Seredin | URS | 55.62 | |||
| 3 | 3 | Xavier Savin | FRA | 55.67 | |||
| 4 | 7 | Aleksey Markovsky | URS | 55.69 | |||
| 5 | 6 | Guy Goosen | ZIM | 56.35 | |||
| 6 | 2 | Philip Hubble | GBR | 56.51 | |||
| 7 | 1 | Fabrizio Rampazzo | ITA | 56.76 | |||
| 8 | 8 | Bogusław Zychowicz | POL | 57.43 |
Heat Two
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | 5 | Cees Vervoorn | NED | 55.02 | |||
| 2 | 4 | Pär Arvidsson | SWE | 55.05 | |||
| 3 | 6 | Gary Abraham | GBR | 55.53 | |||
| 4 | 3 | Roger Pyttel | GDR | 55.63 | |||
| 5 | 2 | David Lowe | GBR | 55.81 | |||
| 6 | 7 | Miloslav Roľko | TCH | 56.16 | |||
| 7 | 1 | Sergey Kiselyov | URS | 56.52 | |||
| 8 | 8 | Gábor Mészáros | HUN | 56.89 |
Final (23 July 1980 — 18:30)
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | 5 | Pär Arvidsson | SWE | 54.92 | |||
| 2 | 7 | Roger Pyttel | GDR | 54.94 | |||
| 3 | 3 | David López-Zubero | ESP | 55.13 | |||
| 4 | 4 | Cees Vervoorn | NED | 55.25 | |||
| 5 | 2 | Yevgeny Seredin | URS | 55.35 | |||
| 6 | 6 | Gary Abraham | GBR | 55.42 | |||
| 7 | 1 | Xavier Savin | FRA | 55.66 | |||
| 8 | 8 | Aleksey Markovsky | URS | 55.70 |