# Swimming at the 2019 Pan American Games – Women's 4 × 100 metre medley relay

The women's 4 × 100 metre medley relay competition of the swimming events at the 2019 Pan American Games are scheduled to be held August 10th, 2019 at the Villa Deportiva Nacional Videna cluster.

## Records

Prior to this competition, the existing world and Pan American Games records were as follows:
| World record | United States (USA) Regan Smith (57.57) Lilly King (1:04.81) Kelsi Dahlia (56.16) Simone Manuel (51.86) | 3:50.40 | Gwangju, South Korea | July 28, 2019 |
| Pan American Games record | United States (USA) Natalie Coughlin (59.05) Katie Meili (1:06.06) Kelsi Worrell (57.34) Allison Schmitt (54.08) | 3:56.53 | Toronto, Canada | July 18, 2015 |

## Results

| KEY: | q | Fastest non-qualifiers | Q | Qualified | GR | Games record | NR | National record | PB | Personal best | SB | Seasonal best |

### Heats

The first round was held on August 10.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 4 | Isabelle Stadden (1:00.29) Molly Hannis (1:08.20) Sarah Gibson (1:00.39) Lia Neal (55.44) | United States | 4:04.32 | Q |
| 2 | 2 | 3 | Fernanda de Goeij (1:02.46) Pâmela de Souza (1:09.57) Daynara de Paula (1:01.20) Manuella Lyrio (56.59) | Brazil | 4:09.82 | Q |
| 3 | 1 | 4 | Mackenzie Glover (1:03.16) Mary-Sophie Harvey (1:11.32) Katerine Savard (1:00.30) Alyson Ackman (55.48) | Canada | 4:10.26 | Q |
| 4 | 1 | 5 | Andrea Berrino (1:03.24) Julia Sebastián (1:10.04) Macarena Ceballos (1:02.29) Florencia Perotti (59.87) | Argentina | 4:15.44 | Q |
| 5 | 2 | 5 | Athena Meneses (1:05.15) Esther González (1:11.21) Diana Luna (1:01.84) Tayde Revilak (58.49) | Mexico | 4:16.69 | Q |
| 6 | 1 | 6 | Alexia Sotomayor (1:05.51) Paula Tamashiro (1:11.66) María Fe Muñoz (1:02.68) McKenna DeBever (57.12) | Peru | 4:16.97 | Q, NR |
| 7 | 1 | 3 | Carla González (1:06.77) Mercedes Toledo (1:11.87) Isabella Paez (1:01.38) Fabiana Pesce (59.10) | Venezuela | 4:19.12 | Q |
| 8 | 2 | 6 | Margaret Higgs (1:07.83) Lillian Higgs (1:12.71) Laura Morley (1:07.19) Ariel Weech (58.87) | Bahamas | 4:26.60 | Q |
| 9 | 2 | 2 | Carolina Cermelli (1:05.88) Emily Santos (1:16.02) Ireyra Tamayo (1:05.69) Catherine Cooper (1:00.28) | Panama | 4:27.87 | |

### Final

The final round was also on August 10.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 4 | Phoebe Bacon (59.02)GR Anne Lazor (1:06.35) Kendyl Stewart (58.62) Margo Geer (53.65) | United States | 3:57.64 | |
| | 3 | Danielle Hanus (1:00.45) Faith Knelson (1:07.57) Haley Black (59.12) Alexia Zevnik (54.76) | Canada | 4:01.90 | |
| | 5 | Etiene Medeiros (1:00.99) Jhennifer Conceição (1:08.39) Giovanna Diamante (1:00.52) Larissa Oliveira (55.06) | Brazil | 4:04.96 | |
| 4 | 6 | Andrea Berrino (1:02.70) Julia Sebastián (1:06.83) Virginia Bardach (1:01.28) Macarena Ceballos (56.89) | Argentina | 4:07.70 | |
| 5 | 2 | Celia Pulido Ortíz (1:05.56) Melissa Rodríguez (1:08.26) Diana Luna (1:01.89) Monika González-Hermosillo (57.40) | Mexico | 4:11.15 | |
| 6 | 1 | Carla González (1:05.56) Mercedes Toledo (1:10.05) Isabella Paez (1:00.55) Jeserik Pinto (57.82) | Venezuela | 4:13.98 | |
| 7 | 7 | Alexia Sotomayor (1:04.68) Paula Tamashiro (1:10.75) María Fe Muñoz (1:02.49) McKenna DeBever (56.20) | Peru | 4:14.12 | NR |
| 8 | 8 | Margaret Higgs (1:07.79) Lillian Higgs (1:12.77) Laura Morley (1:07.42) Ariel Weech (59.54) | Bahamas | 4:27.52 | |