# Swimming at the 2023 Pan American Games – Mixed 4 × 100 metre freestyle relay

The mixed 4 × 100 metre freestyle relay competition of the swimming events at the 2023 Pan American Games was 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 | Australia (AUS) Jack Cartwright (48.14) Kyle Chalmers (47.25) Shayna Jack (51.73) Mollie O'Callaghan (51.71) | 3:18.83 | Fukuoka, Japan | July 29, 2023 |
| Pan American Games record | United States (USA) Michael Chadwick (49.09) Nathan Adrian (47.56) Claire Rasmus (55.10) Margo Geer (53.09) | 3:24.84 | Lima, Peru | August 7, 2023 |
The following games record was established during the competition:
| Date | Event | Swimmer | Time | Record |
| October 22 | Final | Brazil (BRA) Guilherme Caribé (48.26) Marcelo Chierighini (47.59) Ana Carolina Vieira (54.50) Stephanie Balduccini (53.43) | 3:23.78 | GR |

## Results

| KEY: | Q | Qualified for final | GR | Games record | NR | National record | PB | Personal best | SB | Seasonal best |

### Heats

The first round was held on October 22.
| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| 1 | 1 | 4 | United States | Jack Dahlgren (49.00) Brooks Curry (48.30) Gabi Albiero (54.88) Paige Madden (56.78) | 3:28.96 | Q |
| 2 | 2 | 4 | Canada | Stephens Calkins (49.68) Edouard Fullum-Huot (49.24) Brooklyn Douthwright (55.49) Katerine Savard (55.64) | 3:30.05 | Q |
| 3 | 2 | 5 | Brazil | Felipe Ribeiro de Souza (50.88) Victor Alcará (48.59) Lorrane Ferreira (56.40) Nathalia Almeida (56.15) | 3:32.02 | Q |
| 4 | 2 | 6 | Colombia | Sebastián Camacho (51.36) Juan García (51.24) Isabella Bedoya (57.77) Sirena Rowe (55.91) | 3:36.28 | Q |
| 5 | 2 | 3 | Venezuela | Jesus Lopez (51.16) Diego Mas Fraiz (50.96) Mercedes Toledo (57.50) Fabiana Pesce (58.86) | 3:38.48 | Q |
| 6 | 1 | 3 | Argentina | Florencia Perotti (58.22) Magdalena Portela (58.48) Joaquin Piñero (52.12) Matias Santiso (49.78) | 3:38.60 | Q |
| 7 | 1 | 5 | Mexico | Gabriel Castaño (50.50) Maximiliano Vega Cuevas (52.16) Susana Hernandez Barradas (58.84) Maria Mata Cocco (57.50) | 3:39.00 | Q |
| 8 | 1 | 6 | Uruguay | Leo Nolles (51.49) Diego Aranda (51.38) Maria Solari (59.42) Luna Chabat (58.04) | 3:40.33 | Q |
| 9 | 2 | 1 | Peru | Rafael Ponce (51.56) Ricardo Espinosa (52.59) Rafaela Fernandini (58.31) Sophia Ribeiro (59.44) | 3:41.90 | |
| 10 | 2 | 2 | Independent Athletes Team | Maria Morales (59.74) Christopher Grossmann (53.02) Maria Santis Mejia (59.69) Miguel Vásquez (51.36) | 3:43.81 | |
| 11 | 1 | 7 | Bahamas | Lamar Taylor (50.28) Zaylie Thompson (59.31) Katelyn Cabral (1:01.48) Luke Thompson (53.87) | 3:44.94 | |
| 12 | 1 | 1 | Panama | Isaac Beitia (51.75) Jeancarlo Calderón (52.30) Maria Castillo Cedeño (59.17) Emily Santos (1:01.88) | 3:45.10 | |
| 13 | 1 | 2 | Jamaica | Sidrell Williams (53.62) Kito Campbell (55.68) Sabrina Lyn (59.71) Emily Macdonald (58.46) | 3:47.47 | |
| 14 | 2 | 7 | Chile | Manuel Osorio (52.63) Vicente Villanueva (54.90) Florencia Orpis (1:03.03) Arantza Salazar (1:02.76) | 3:53.32 | |

### Final

The final round was also held on October 22.
| Rank | Lane | Nation | Swimmers | Time | Notes |
| | 3 | Brazil | Guilherme Caribé (48.26) Marcelo Chierighini (47.59) Ana Carolina Vieira (54.50) Stephanie Balduccini (53.43) | 3:23.78 | GR |
| | 4 | United States | Brooks Curry (48.43) Jonny Kulow (47.44) Catie DeLoof (54.01) Amy Fulmer (54.33) | 3:24.21 | |
| | 5 | Canada | Finlay Knox (49.80) Javier Acevedo (48.02) Maggie Mac Neil (53.47) Mary-Sophie Harvey (53.94) | 3:25.23 | |
| 4 | 1 | Mexico | Andres Dupont (48.86) Jorge Iga (48.61) Sofia Revilak (55.72) Athena Meneses (55.68) | 3:28.87 | |
| 5 | 7 | Argentina | Guido Buscaglia (49.81) Matias Santiso (49.08) Guillermina Ruggiero (56.12) Lucia Gauna (56.23) | 3:31.24 | |
| 6 | 6 | Colombia | Santiago Corredor (50.87) Sebastián Camacho (51.27) Sirena Rowe (56.00) Isabella Arcila (56.04) | 3:34.18 | |
| 7 | 2 | Venezuela | Emil Perez (51.28) Diego Mas Fraiz (50.84) Maria Yegres (57.65) Carla Gonzalez (56.11) | 3:35.88 | |
| 8 | 8 | Uruguay | Leo Nolles (51.14) Diego Aranda (51.87) Maria Solari (59.76) Luna Chabat (58.21) | 3:40.98 | |