# Swimming at the 2023 Pan American Games – Men's 100 metre freestyle

The men's 100 metre freestyle competition of the swimming events at the 2023 Pan American Games were held on October 23, 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 | David Popovici (ROM) | 46.86 | Rome, Italy | August 13, 2022 |
| Pan American Games record | César Cielo Filho (BRA) | 47.84 | Guadalajara, Mexico | October 16, 2011 |

## Results

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

### Heats

The first round was held on October 23.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 3 | 5 | Jonny Kulow | United States | 48.49 | QA |
| 2 | 2 | 4 | Guilherme Caribé | Brazil | 48.63 | QA |
| 3 | 4 | 4 | Marcelo Chierighini | Brazil | 48.64 | QA |
| 4 | 3 | 4 | Brooks Curry | United States | 48.65 | QA |
| 5 | 4 | 6 | Andres Dupont | Mexico | 48.86 | QA |
| 6 | 3 | 3 | Breno Correia | Brazil | 49.05 | QB |
| 7 | 4 | 3 | Jorge Iga | Mexico | 49.25 | QA |
| 8 | 2 | 5 | Javier Acevedo | Canada | 49.26 | QA |
| 9 | 2 | 3 | Alberto Mestre | Venezuela | 49.28 | QA |
| 10 | 2 | 6 | Guido Buscaglia | Argentina | 49.65 | QB |
| 11 | 4 | 2 | Matias Santiso | Argentina | 49.68 | QB |
| 12 | 3 | 6 | Edouard Fullum-Huot | Canada | 49.76 | QB |
| 13 | 4 | 5 | Mikel Schreuders | Aruba | 49.88 | QB |
| 14 | 4 | 7 | Ben Hockin | Paraguay | 50.69 | QB |
| 15 | 3 | 7 | Leo Nolles | Uruguay | 50.79 | QB |
| 16 | 2 | 2 | Lamar Taylor | Bahamas | 50.95 | WD |
| 17 | 3 | 2 | Nikoli Blackman | Trinidad and Tobago | 51.01 | QB |
| 18 | 2 | 1 | Isaac Beitia | Panama | 51.32 | |
| 19 | 3 | 8 | Joaquín Vargas | Peru | 51.72 | |
| 20 | 4 | 1 | Gabriel Martinez | Honduras | 52.00 | |
| 21 | 3 | 1 | Jayhan Odlum-Smith | Saint Lucia | 52.01 | |
| 22 | 1 | 4 | Benjamín Schnapp | Chile | 52.02 | |
| 23 | 2 | 7 | James Allison | Cayman Islands | 52.05 | |
| 24 | 1 | 3 | Elías Ardiles | Chile | 52.51 | |
| 25 | 1 | 5 | Miguel Vásquez | Independent Athletes Team | 52.52 | |
| 26 | 1 | 6 | Nixon Hernández | El Salvador | 52.58 | |
| 27 | 2 | 8 | Sidrell Williams | Jamaica | 52.74 | |
| 28 | 4 | 8 | Stefano Mitchell | Antigua and Barbuda | 52.86 | |
| 29 | 1 | 7 | Nector Segovia | El Salvador | 53.01 | |
| 30 | 1 | 2 | Irvin Hoost | Suriname | 53.37 | |
| 31 | 1 | 1 | Gerald Hernandez | Nicaragua | 54.52 | |

### Final B

The B final was also held on October 23.
| Rank | Lane | Name | Nationality | Time |
| 9 | 6 | Edouard Fullum-Huot | Canada | 49.33 |
| 10 | 2 | Mikel Schreuders | Aruba | 49.69 |
| 11 | 5 | Guido Buscaglia | Argentina | 49.93 |
| 12 | 3 | Matias Santiso | Argentina | 49.99 |
| 13 | 4 | Breno Correia | Brazil | 50.19 |
| 14 | 8 | Nikoli Blackman | Trinidad and Tobago | 50.81 |
| 15 | 7 | Ben Hockin | Paraguay | 50.97 |
| 16 | 1 | Leo Nolles | Uruguay | 50.99 |

### Final A

The A final was also held on October 23.
| Rank | Lane | Name | Nationality | Time |
| | 5 | Guilherme Caribé | Brazil | 48.06 |
| | 6 | Brooks Curry | United States | 48.38 |
| | 4 | Jonny Kulow | United States | 48.38 |
| 4 | 1 | Javier Acevedo | Canada | 48.88 |
| 5 | 3 | Marcelo Chierighini | Brazil | 48.92 |
| 6 | 8 | Alberto Mestre | Venezuela | 48.96 |
| 7 | 2 | Andres Dupont | Mexico | 49.03 |
| 8 | 7 | Jorge Iga | Mexico | 49.18 |