# Swimming at the 2023 Pan American Games – Women's 100 metre butterfly

The women's 100 metre butterfly competition of the swimming events at the 2023 Pan American Games were held on October 22, 2023, at the Aquatic Center in Santiago, Chile.

## Records

Prior to this competition, the existing world and Pan American Games records were as follows:
| World record | Haiyang Qin (CHN) | 55.48 | Rio de Janeiro, Brazil | August 7, 2016 |
| Pan American Games record | Kelsi Worrell (USA) | 57.24 | Toronto, Canada | July 16, 2015 |

## Results

| KEY: | QA | Qualified for A final | QB | Qualified for B final | GR | Games record | NR | National record | PB | Personal best | SB | Seasonal best |

### Heats

The highest eight scores advance to the final.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 3 | 4 | Kelly Pash | United States | 58.34 | QA |
| 2 | 2 | 4 | Olivia Bray | United States | 58.84 | QA |
| 3 | 3 | 6 | Valentina Becerra | Colombia | 59.70 | QA |
| 4 | 4 | 4 | Maggie MacNeil | Canada | 59.73 | QA |
| 5 | 2 | 6 | Anicka Delgado | Ecuador | 59.79 | QA |
| 6 | 4 | 5 | Katerine Savard | Canada | 59.87 | QA |
| 7 | 4 | 2 | Clarissa Rodrigues | Brazil | 1:00.02 | QA |
| 8 | 3 | 5 | Giovanna Diamante | Brazil | 1:00.47 | QA |
| 9 | 4 | 3 | Celine Bispo | Brazil | 1:00.47 | QB |
| 10 | 3 | 3 | Miriam Guevara | Mexico | 1:00.74 | QB |
| 11 | 2 | 2 | Emma Harvey | Bermuda | 1:01.40 | QB |
| 12 | 2 | 5 | Athena Meneses | Mexico | 1:01.81 | QB |
| 13 | 3 | 7 | Lismar Lyon | Venezuela | 1:01.88 | QB |
| 14 | 4 | 6 | Karen Durango | Colombia | 1:02.31 | QB |
| 15 | 3 | 2 | Jade Foelske | Ecuador | 1:02.35 | QB |
| 16 | 4 | 8 | María Schutzmeier | Nicaragua | 1:02.43 | QB |
| 17 | 2 | 7 | Monstserrat Spielmann | Chile | 1:02.53 | |
| 18 | 3 | 1 | Lorena González | Cuba | 1:03.08 | |
| 19 | 2 | 3 | Luana Alonso | Paraguay | 1:03.21 | |
| 20 | 3 | 8 | María Fé Muñoz | Peru | 1:03.35 | |
| 21 | 2 | 1 | Julimar Ávila | Honduras | 1:03.36 | |
| 22 | 4 | 7 | Sabrina Lyn | Jamaica | 1:04.09 | |
| 22 | 4 | 1 | Isabella Alas | El Salvador | 1:04.09 | |
| 24 | 2 | 8 | Sierrah Broadbelt | Cayman Islands | 1:04.48 | |
| 25 | 1 | 4 | Aleka Persaud | Guyana | 1:05.75 | |
| 26 | 1 | 3 | María Morales | Independent Athletes Team | 1:07.93 | |
| 27 | 1 | 5 | Kennice Greene | Saint Vincent and the Grenadines | 1:09.03 | |
| 28 | 1 | 6 | Kaeylin Djoparto | Suriname | 1:13.47 | |

### Final B

The B final was held on October 21.
| Rank | Lane | Name | Nationality | Time |
| 9 | 3 | Emma Harvey | Bermuda | 1:00.72 |
| 10 | 5 | Miriam Guevara | Mexico | 1:00.74 |
| 11 | 6 | Athena Meneses | Mexico | 1:00.84 |
| 12 | 4 | Celine Bispo | Brazil | 1:00.88 |
| 13 | 7 | Karen Durango | Colombia | 1:00.98 |
| 14 | 2 | Lismar Lyon | Venezuela | 1:01.86 |
| 15 | 1 | Jade Foelske | Ecuador | 1:02.19 |
| 16 | 8 | María Schutzmeier | Nicaragua | 1:02.33 |

### Final A

The A final was held on October 21.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 6 | Maggie MacNeil | Canada | 56.94 | |
| | 4 | Kelly Pash | United States | 57.85 | |
| | 5 | Olivia Bray | United States | 58.36 | |
| 4 | 3 | Valentina Becerra | Colombia | 59.21 | NR |
| 5 | 7 | Katerine Savard | Canada | 59.40 | |
| 6 | 8 | Giovanna Diamante | Brazil | 1:00.21 | |
| 7 | 1 | Clarissa Rodrigues | Brazil | 1:00.50 | |
| 8 | 2 | Anicka Delgado | Ecuador | 1:00.52 | |