| | Event type
100 metres Butterfly, Women
| Date | 21 – 22 July 1976 |
|---|---|
| Status | Olympic |
| Location | Piscine olympique, Montréal, Québec |
| Participants | 39 from 23 countries |
Kornelia Ender was the 1975 World Champion and the world record holder and was heavily favored in this event, and came through as expected, equalling her world record. But the final was a bit closer than expected as she was challenged by her teammate Andrea Pollack, only 15-years-old, who only a few days before had won the 200 fly, and won the silver medal in this race. Ender finished the 100 fly at 1948, and a few minutes later stood on the medal podium. Twenty minutes after this race ended she came back to the pool deck for the final of the 200 freestyle. A few minutes after that, she had won her second individual gold medal within 27 minutes. Ender would finish the Montréal Olympics with four gold medals, adding gold in the 100 freestyle and medley relay, and a silver in the 4×100 freestyle relay.
| Pos | Swimmer | NOC | R1 | SF | Final | |||
|---|---|---|---|---|---|---|---|---|
| 1 | Kornelia Ender |  GDR | 1:02.45 (1 h3) | 1:01.03 (1 h2) | 1:00.13 (1) | Gold | ||
| 2 | Andrea Pollack | GDR | 1:01.43 (1 h6) | 1:01.39 (2 h2) | 1:00.98 (2) | Silver | ||
| 3 | Wendy Boglioli |  USA | 1:01.84 (1 h2) | 1:01.75 (1 h1) | 1:01.17 (3) | Bronze | ||
| 4 | Camille Wright | USA | 1:02.22 (2 h4) | 1:01.89 (2 h1) | 1:01.41 (4) | |||
| 5 | Rosemarie Gabriel | GDR | 1:02.34 (1 h5) | 1:01.93 (4 h2) | 1:01.56 (5) | |||
| 6 | Wendy Quirk |  CAN | 1:01.93 (1 h4) | 1:01.54 (3 h2) | 1:01.75 (6) | |||
| 7 | LeLei Fonoimoana | USA | 1:02.75 (2 h1) | 1:02.23 (5 h2) | 1:01.95 (7) | |||
| 8 | Tamara Shelofastova |  URS | 1:02.40 (2 h5) | 1:02.40 (3 h1) | 1:02.74 (8) | |||
| 9 | Hélène Boivin | CAN | 1:02.67 (1 h1) | 1:02.90 (4 h1) | – | |||
| 10 | Susan Sloan | CAN | 1:03.12 (2 h6) | 1:02.91 (5 h1) | – | |||
| 11 | María París |  CRC | 1:03.67 (2 h3) | 1:03.27 (6 h2) | – | |||
| 12 | Linda Hanel |  AUS | 1:03.78 (3 h3) | 1:03.30 (6 h1) | – | |||
| 13 | Yasue Hatsuda |  JPN | 1:03.32 (2 h2) | 1:03.33 (7 h2) | – | |||
| =14 | Sue Jenner |  GBR | 1:04.19 (3 h1) | 1:04.06 (8 h2) | – | |||
| =14 | Lynne Rowe |  NZL | 1:04.23 (4 h1) | 1:04.06 (7 h1) | – | |||
| 16 | Kuniko Banno | JPN | 1:03.66 (3 h5) | 1:04.21 (8 h1) | – | |||
| 17 | Gudrun Beckmann |  FRG | 1:04.36 (3 h6) | – | – | |||
| 18 | Gunilla Andersson |  SWE | 1:04.48 (3 h4) | – | – | |||
| 19 | Joanne Atkinson | GBR | 1:04.70 (3 h2) | – | – | |||
| 20 | Lyle Smith | AUS | 1:04.71 (4 h6) | – | – | |||
| 21 | Nira Stove | AUS | 1:04.78 (4 h3) | – | – | |||
| 22 | Beate Jasch | FRG | 1:04.82 (4 h4) | – | – | |||
| 23 | Nataliya Popova | URS | 1:05.22 (4 h5) | – | – | |||
| 24 | Ineke Ran |  NED | 1:05.63 (5 h3) | – | – | |||
| 25 | José Damen | NED | 1:06.09 (5 h5) | – | – | |||
| 26 | Chantal Grimard |  BEL | 1:06.10 (4 h2) | – | – | |||
| 27 | Donatella Talpo-Schiavon |  ITA | 1:06.15 (5 h2) | – | – | |||
| 28 | Flávia Nadalutti |  BRA | 1:06.29 (5 h6) | – | – | |||
| 29 | Jane Alexander | GBR | 1:06.33 (5 h1) | – | – | |||
| 30 | Rose Mary Ribeiro | BRA | 1:06.50 (6 h6) | – | – | |||
| 31 | María Mock |  PUR | 1:06.52 (7 h6) | – | – | |||
| 32 | Rossana Juncos |  ARG | 1:06.76 (6 h3) | – | – | |||
| 33 | Montserrat Majo |  ESP | 1:06.79 (6 h2) | – | – | |||
| 34 | Marianela Huen |  VEN | 1:07.17 (6 h5) | – | – | |||
| 35 | María Hung | VEN | 1:07.37 (5 h4) | – | – | |||
| 36 | Shelley Cramer |  ISV | 1:08.55 (7 h3) | – | – | |||
| 37 | Þórunn Alfreðsdóttir |  ISL | 1:09.63 (6 h1) | – | – | |||
| 38 | Liliana Cian |  COL | 1:09.91 (7 h5) | – | – | |||
| 39 | Sansanee Changkasiri |  THA | 1:10.97 (6 h4) | – | – | |||
| Miriam Hopkins |  IRL | – (DNS h2) | – | – | ||||
| Lyubov Kobzova | URS | – (DNS h4) | – | – |
Round One (21 July 1976 — 9:30)
Fastest 16 advanced to the semi-finals.
Heat One
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | 5 | Hélène Boivin | CAN | 1:02.67 | |||
| 2 | 4 | LeLei Fonoimoana | USA | 1:02.75 | |||
| 3 | 3 | Sue Jenner | GBR | 1:04.19 | |||
| 4 | 2 | Lynne Rowe | NZL | 1:04.23 | |||
| 5 | 6 | Jane Alexander | GBR | 1:06.33 | |||
| 6 | 1 | Þórunn Alfreðsdóttir | ISL | 1:09.63 |
Heat Two
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | 4 | Wendy Boglioli | USA | 1:01.84 | |||
| 2 | 5 | Yasue Hatsuda | JPN | 1:03.32 | |||
| 3 | 3 | Joanne Atkinson | GBR | 1:04.70 | |||
| 4 | 6 | Chantal Grimard | BEL | 1:06.10 | |||
| 5 | 2 | Donatella Talpo-Schiavon | ITA | 1:06.15 | |||
| 6 | 7 | Montserrat Majo | ESP | 1:06.79 | |||
| 1 | Miriam Hopkins | IRL | – |
Heat Three
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | 4 | Kornelia Ender | GDR | 1:02.45 | |||
| 2 | 5 | María París | CRC | 1:03.67 | |||
| 3 | 3 | Linda Hanel | AUS | 1:03.78 | |||
| 4 | 6 | Nira Stove | AUS | 1:04.78 | |||
| 5 | 2 | Ineke Ran | NED | 1:05.63 | |||
| 6 | 7 | Rossana Juncos | ARG | 1:06.76 | |||
| 7 | 1 | Shelley Cramer | ISV | 1:08.55 |
Heat Four
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | 5 | Wendy Quirk | CAN | 1:01.93 | |||
| 2 | 4 | Camille Wright | USA | 1:02.22 | |||
| 3 | 3 | Gunilla Andersson | SWE | 1:04.48 | |||
| 4 | 2 | Beate Jasch | FRG | 1:04.82 | |||
| 5 | 7 | María Hung | VEN | 1:07.37 | |||
| 6 | 1 | Sansanee Changkasiri | THA | 1:10.97 | |||
| 6 | Lyubov Kobzova | URS | – |
Heat Five
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | 4 | Rosemarie Gabriel | GDR | 1:02.34 | |||
| 2 | 5 | Tamara Shelofastova | URS | 1:02.40 | |||
| 3 | 6 | Kuniko Banno | JPN | 1:03.66 | |||
| 4 | 3 | Nataliya Popova | URS | 1:05.22 | |||
| 5 | 2 | José Damen | NED | 1:06.09 | |||
| 6 | 7 | Marianela Huen | VEN | 1:07.17 | |||
| 7 | 1 | Liliana Cian | COL | 1:09.91 |
Heat Six
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | 4 | Andrea Pollack | GDR | 1:01.43 | |||
| 2 | 5 | Susan Sloan | CAN | 1:03.12 | |||
| 3 | 6 | Gudrun Beckmann | FRG | 1:04.36 | |||
| 4 | 3 | Lyle Smith | AUS | 1:04.71 | |||
| 5 | 2 | Flávia Nadalutti | BRA | 1:06.29 | |||
| 6 | 7 | Rose Mary Ribeiro | BRA | 1:06.50 | |||
| 7 | 1 | María Mock | PUR | 1:06.52 |
Semi-Finals (21 July 1976 — 19:00)
Fastest eight advanced to the final.
Heat One
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | 4 | Wendy Boglioli | USA | 1:01.75 | |||
| 2 | 5 | Camille Wright | USA | 1:01.89 | |||
| 3 | 3 | Tamara Shelofastova | URS | 1:02.40 | |||
| 4 | 6 | Hélène Boivin | CAN | 1:02.90 | |||
| 5 | 2 | Susan Sloan | CAN | 1:02.91 | |||
| 6 | 1 | Linda Hanel | AUS | 1:03.30 | |||
| 7 | 8 | Lynne Rowe | NZL | 1:04.06 | |||
| 8 | 7 | Kuniko Banno | JPN | 1:04.21 |
Heat Two
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | 6 | Kornelia Ender | GDR | 1:01.03 | |||
| 2 | 4 | Andrea Pollack | GDR | 1:01.39 | |||
| 3 | 5 | Wendy Quirk | CAN | 1:01.54 | |||
| 4 | 3 | Rosemarie Gabriel | GDR | 1:01.93 | |||
| 5 | 2 | LeLei Fonoimoana | USA | 1:02.23 | |||
| 6 | 1 | María París | CRC | 1:03.27 | |||
| 7 | 7 | Yasue Hatsuda | JPN | 1:03.33 | |||
| 8 | 8 | Sue Jenner | GBR | 1:04.06 |
Final (22 July 1976 — 19:30)
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | 4 | Kornelia Ender | GDR | 1:00.13 | |||
| 2 | 5 | Andrea Pollack | GDR | 1:00.98 | |||
| 3 | 6 | Wendy Boglioli | USA | 1:01.17 | |||
| 4 | 2 | Camille Wright | USA | 1:01.41 | |||
| 5 | 7 | Rosemarie Gabriel | GDR | 1:01.56 | |||
| 6 | 3 | Wendy Quirk | CAN | 1:01.75 | |||
| 7 | 1 | LeLei Fonoimoana | USA | 1:01.95 | |||
| 8 | 8 | Tamara Shelofastova | URS | 1:02.74 |