# Swimming at the 1960 Summer Olympics – Women's 100 metre freestyle

The women's 100 metre freestyle event at the 1960 Olympic Games took place between August 26 and 29. This swimming event used freestyle swimming, which means that the method of the stroke is not regulated (unlike backstroke, breaststroke, and butterfly events). Nearly all swimmers use the front crawl or a variant of that stroke. Because an Olympic-size swimming pool is 50 metres long, this race consisted of two lengths of the pool.

## Competition format

The competition used a three-round (heats, semifinals, final) format. The advancement rule followed the format introduced in 1952. A swimmer's place in the heat was not used to determine advancement; instead, the fastest times from across all heats in a round were used. There were 7 heats of between 6 and 8 swimmers each. The top 24 swimmers advanced to the semifinals. There were 3 semifinals of 8 swimmers each. The top 8 swimmers advanced to the final. Swim-offs were used as necessary to break ties.

## Results
### Heats

Five heats were held; the swimmers with the fastest 16 times advanced to the semifinals. Those that advanced are highlighted. This round took place on August 26.
| Rank | Heat | Lane | Swimmer | Nation | Time | Notes |
| 1 | 4 | 4 | Chris von Saltza | United States | 1:01.9 | Q |
| 2 | 2 | 4 | Dawn Fraser | Australia | 1:02.1 | Q |
| 3 | 5 | 5 | Natalie Steward | Great Britain | 1:03.5 | Q |
| 4 | 2 | 5 | Cockie Gastelaars | Netherlands | 1:03.9 | Q |
| 5 | 1 | 4 | Ilsa Konrads | Australia | 1:04.2 | Q |
| 6 | 5 | 4 | Carolyn Wood | United States | 1:04.3 | Q |
| 7 | 1 | 5 | Paola Saini | Italy | 1:04.4 | Q |
| 7 | 5 | 6 | Erica Terpstra | Netherlands | 1:04.4 | Q |
| 9 | 3 | 4 | Csilla Madarász-Bajnogel-Dobai | Hungary | 1:04.5 | Q |
| 10 | 4 | 3 | Ursel Brunner | Germany | 1:04.6 | Q |
| 11 | 3 | 3 | Heidi Pechstein | Germany | 1:05.1 | Q |
| 12 | 1 | 6 | Katalin Boros | Hungary | 1:05.2 | Q |
| 13 | 4 | 6 | Héda Frost | France | 1:05.8 | Q |
| 14 | 4 | 5 | Mary Stewart | Canada | 1:06.0 | Q |
| 15 | 2 | 3 | Inger Thorngren | Sweden | 1:06.1 | Q |
| 16 | 1 | 3 | Karin Larsson | Sweden | 1:06.3 | Q |
| 17 | 2 | 6 | Yoshiko Sato | Japan | 1:06.4 | |
| 17 | 5 | 3 | Marina Shamal | Soviet Union | 1:06.4 | |
| 19 | 4 | 2 | Ulvi Voog | Soviet Union | 1:06.7 | |
| 20 | 1 | 2 | Maria Cristina Pacifici | Italy | 1:07.1 | |
| 21 | 2 | 7 | Nora Novotny | Austria | 1:07.4 | |
| 22 | 2 | 1 | Ágústa Þorsteinsdóttir | Iceland | 1:07.5 | |
| 22 | 3 | 6 | Diana Wilkinson | Great Britain | 1:07.5 | |
| 24 | 3 | 5 | Margaret Iwasaki | Canada | 1:07.6 | |
| 25 | 4 | 1 | Haydée Coloso | Philippines | 1:07.8 | |
| 26 | 1 | 7 | Blanca Barrón | Mexico | 1:07.9 | |
| 27 | 5 | 2 | Marie-Laure Gaillot | France | 1:08.0 | |
| 28 | 5 | 7 | Maria Luisa Souza | Mexico | 1:08.4 | |
| 29 | 3 | 7 | Anneliese Rockenbach | Venezuela | 1:08.5 | |
| 30 | 4 | 7 | Dorothy Sutcliffe | Rhodesia | 1:09.0 | |
| 31 | 3 | 2 | Hitomi Jinno | Japan | 1:09.8 | |
| 32 | 3 | 1 | Rita Pulido | Spain | 1:10.0 | |

### Semifinals

Two semifinal races were held; the fastest eight swimmers advanced to the Final. The athletes that advanced are highlighted. The semifinals were held August 27.

#### Semifinal 1

| Rank | Lane | Name | Nationality | Time |
| 1 | 4 | Chris von Saltza | United States | 1:02.5 |
| 2 | 5 | Natalie Steward | Great Britain | 1:02.9 |
| 3 | 2 | Csilla Madarász-Bajnogel-Dobai | Hungary | 1:03.0 |
| 4 | 3 | Ilsa Konrads | Australia | 1:04.7 |
| 5 | 1 | Héda Frost | France | 1:05.4 |
| 6 | 6 | Paola Saini | Italy | 1:05.4 |
| 7 | 8 | Inger Thorngren | Sweden | 1:05.5 |
| 8 | 7 | Heidi Pechstein | Germany | 1:05.6 |

#### Semifinal 2

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Dawn Fraser | Australia | 1:01.4 | OR |
| 2 | 6 | Erica Terpstra | Netherlands | 1:03.7 | |
| 3 | 5 | Cockie Gastelaars | Netherlands | 1:03.9 | |
| 4 | 3 | Carolyn Wood | United States | 1:04.2 | |
| 5 | 1 | Mary Stewart | Canada | 1:04.2 | |
| 6 | 2 | Ursel Brunner | Germany | 1:04.5 | |
| 7 | 7 | Katalin Boros | Hungary | 1:06.2 | |
| 8 | 8 | Karin Larsson | Sweden | 1:06.5 | |

### Final

The Final was held on August 29.
| Rank | Lane | Athlete | Country | Time | Notes |
| | 4 | Dawn Fraser | Australia | 1:01.2 | OR |
| | 5 | Chris von Saltza | United States | 1:02.8 | |
| | 3 | Natalie Steward | Great Britain | 1:03.1 | |
| 4 | 1 | Carolyn Wood | United States | 1:03.4 | |
| 5 | 6 | Csilla Madarász-Bajnogel-Dobai | Hungary | 1:03.6 | |
| 6 | 2 | Erica Terpstra | Netherlands | 1:04.3 | |
| 7 | 7 | Cockie Gastelaars | Netherlands | 1:04.7 | |
| 8 | 8 | Mary Stewart | Canada | 1:05.5 | |