# Swimming at the 2018 Commonwealth Games – Women's 50 metre butterfly

The women's 50 metre butterfly event at the 2018 Commonwealth Games was held on 7 and 8 April at the Gold Coast Aquatic Centre.

## Records

Prior to this competition, the existing world, Commonwealth and Games records were as follows:
| World record | Sarah Sjöström (SWE) | 24.43 | Borås, Sweden | 5 July 2014 |
| Commonwealth record | Fran Halsall (ENG) | 25.20 | Glasgow, United Kingdom | 27 July 2014 |
| Games record | Fran Halsall (ENG) | 25.20 | Glasgow, United Kingdom | 27 July 2014 |

## Results
### Heats

The heats were held on 7 April at 11:28.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 3 | 5 | Madeline Groves | Australia | 25.81 | Q |
| 2 | 4 | 4 | Cate Campbell | Australia | 25.83 | Q |
| 3 | 3 | 4 | Penny Oleksiak | Canada | 25.95 | Q |
| 4 | 2 | 4 | Holly Barratt | Australia | 26.14 | Q |
| 5 | 4 | 5 | Rebecca Smith | Canada | 26.65 | Q |
| 6 | 4 | 6 | Alia Atkinson | Jamaica | 26.91 | Q |
| 7 | 3 | 3 | Alys Thomas | Wales | 26.95 | Q |
| 8 | 4 | 3 | Erin Gallagher | South Africa | 27.05 | Q |
| 9 | 2 | 6 | Helena Gasson | New Zealand | 27.10 | Q |
| 9 | 2 | 5 | Harriet Jones | Wales | 27.10 | Q |
| 11 | 4 | 2 | Harriet West | Wales | 27.41 | Q |
| 12 | 3 | 6 | Quah Ting Wen | Singapore | 27.44 | Q |
| 13 | 2 | 2 | Emma Chelius | South Africa | 27.55 | Q |
| 14 | 2 | 3 | Charlotte Atkinson | Isle of Man | 27.72 | Q |
| 15 | 3 | 2 | Emily Siobhan Muteti | Kenya | 28.46 | Q |
| 16 | 4 | 7 | Elodie Poo-cheong | Mauritius | 28.63 | Q |
| 17 | 2 | 7 | Katie Kyle | Saint Lucia | 28.80 | |
| 18 | 4 | 8 | Gemma Atherley | Jersey | 28.94 | |
| 19 | 3 | 7 | Matelita Buadromo | Fiji | 29.12 | |
| 20 | 2 | 8 | Lauren Hew | Cayman Islands | 29.38 | |
| 21 | 2 | 1 | Cheyenne Rova | Fiji | 29.70 | |
| 22 | 3 | 8 | Dilrukshi Perera | Sri Lanka | 29.81 | NR |
| 23 | 3 | 1 | Jamila Sanmoogan | Guyana | 29.97 | |
| 24 | 1 | 4 | Oreoluwa Cherebin | Grenada | 30.43 | |
| 25 | 4 | 1 | Aaliyah Palestrini | Seychelles | 30.59 | |
| 26 | 1 | 3 | Christina Linares | Gibraltar | 31.92 | |
| 27 | 1 | 6 | Avice Meya | Uganda | 32.50 | |
| 28 | 1 | 5 | Miss Khatun | Bangladesh | 32.96 | |
| 29 | 1 | 2 | Charissa Panuve | Tonga | 33.09 | |

### Semifinals

The semifinals were held on 7 April at 20:39.

#### Semifinal 1

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Cate Campbell | Australia | 25.56 | Q |
| 2 | 5 | Holly Barratt | Australia | 25.88 | Q |
| 3 | 3 | Alia Atkinson | Jamaica | 26.84 | Q |
| 4 | 6 | Erin Gallagher | South Africa | 26.85 | Q |
| 5 | 2 | Harriet Jones | Wales | 27.03 | |
| 6 | 7 | Quah Ting Wen | Singapore | 27.35 | |
| 7 | 1 | Charlotte Atkinson | Isle of Man | 27.57 | |
| 8 | 8 | Elodie Poo-cheong | Mauritius | 28.43 | |

#### Semifinal 2

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Madeline Groves | Australia | 25.54 | Q |
| 2 | 5 | Penny Oleksiak | Canada | 25.94 | Q |
| 3 | 6 | Rebecca Smith | Canada | 26.68 | Q |
| 4 | 6 | Alys Thomas | Wales | 26.72 | Q |
| 5 | 7 | Harriet West | Wales | 27.17 | |
| 6 | 2 | Helena Gasson | New Zealand | 27.19 | |
| 7 | 1 | Alia Atkinson | Jamaica | 27.52 | |
| 8 | 8 | Emily Siobhan Muteti | Kenya | 28.63 | |

### Final

The final was held on 8 April at 21:36.
| Rank | Lane | Name | Nationality | Time |
| | 5 | Cate Campbell | Australia | 25.59 |
| | 3 | Holly Barratt | Australia | 25.67 |
| | 4 | Madeline Groves | Australia | 25.69 |
| 4 | 6 | Penny Oleksiak | Canada | 25.88 |
| 5 | 2 | Rebecca Smith | Canada | 26.49 |
| 6 | 7 | Alys Thomas | Wales | 26.78 |
| 7 | 8 | Erin Gallagher | South Africa | 26.84 |
| 8 | 1 | Alia Atkinson | Jamaica | 27.35 |