# Swimming at the 2015 Pan American Games – Women's 4 × 100 metre freestyle relay

The women's 4 × 100 metre freestyle relay competition of the swimming events at the 2015 Pan American Games took place on July 14 at the CIBC Pan Am/Parapan Am Aquatics Centre and Field House in Toronto, Canada. The defending Pan American Games champion is the United States.
This race consisted of eight lengths of the pool. Each of the four swimmers completed two lengths of the pool. The first swimmer had to touch the wall before the second could leave the starting block.

## Records

Prior to this competition, the existing world and Pan American Games records were as follows:
| World record | Australia (AUS) Bronte Campbell (53.15) Melanie Schlanger (52.76) Emma McKeon (52.91) Cate Campbell (52.16) | 3:30.98 | Glasgow, Scotland | July 24, 2014 |
| Pan American Games record | United States (USA) Madison Kennedy (55.55) Elizabeth Pelton (55.25) Amanda Kendall (54.62) Erika Erndl (55.24) | 3:40.66 | Guadalajara, Mexico | October 15, 2011 |
The following new records were set during this competition.
| Date | Event | Nation | Time | Record |
| 14 July | Heat 1 | United States | 3:37.28 | GR |
| 14 July | Final | Canada | 3:36.80 | GR |

## Schedule

All times are Eastern Time Zone (UTC-4).
| Date | Time | Round |
| July 14, 2015 | 11:02 | Heats |
| July 14, 2015 | 20:22 | Final |

## Results
### Heats

The first round was held on July 14. As only eight teams had entered, the heats served as a ranking round with all eight teams advancing to the final.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 1 | 4 | Katie Meili (55.51) Allison Schmitt (53.82) Madison Kennedy (53.92) Kelsi Worrell (54.03) | United States | 3:37.28 | Q, GR |
| 2 | 1 | 5 | Sandrine Mainville (54.89) Alyson Ackman (55.68) Katerine Savard (55.40) Dominique Bouchard (56.86) | Canada | 3:42.83 | Q |
| 3 | 1 | 3 | Daiane Oliveira (56.93) Manuella Lyrio (56.95) Etiene Medeiros (56.17) Daynara de Paula (56.68) | Brazil | 3:46.73 | Q |
| 4 | 1 | 7 | Carolina Colorado Henao (57.39) María Álvarez (57.48) Jessica Camposano (58.21) Isabella Arcila (56.53) | Colombia | 3:49.61 | Q |
| 5 | 1 | 6 | Jeserik Pinto (57.23) Andrea Garrido (58.35) Mercedes Toledo (57.64) Yennifer Marquez (56.67) | Venezuela | 3:49.89 | Q |
| 6 | 1 | 2 | Natalia Jaspeado (58.79) Moniika Gonzalez-Hermosillo (57.35) Natasha Gvakharia (57.47) Maria Hichaud (58.00) | Mexico | 3:51.61 | Q |
| 7 | 1 | 8 | Kaori Miyahara (59.63) Andrea Cedrón (58.34) Jessica Cattaneo (58.30) McKenna DeBever (58.17) | Peru | 3:54.44 | Q, NR |
| 8 | 1 | 1 | Breanna Roman (57.98) Alia Atkinson (57.09) Trudian Patrick (1:03.56) Danielle Boothe (1:00.46) | Jamaica | 3:59.09 | Q |

### Final

The final was held on July 14.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 5 | Sandrine Mainville (54.43) Michelle Williams (54.42) Katerine Savard (54.53) Chantal van Landeghem (53.42) | Canada | 3:36.80 | GR, NR |
| | 4 | Allison Schmitt (54.46) Amanda Weir (54.79) Madison Kennedy (53.89) Natalie Coughlin (53.87) | United States | 3:37.01 | |
| | 3 | Larissa Oliveira (54.67) Graciele Herrmann (54.72) Etiene Medeiros (53.99) Daynara de Paula (54.01) | Brazil | 3:37.39 | SA |
| 4 | 2 | Yennifer Marquez (56.60) Andreina Pinto (56.27) Jeserik Pinto (56.77) Arlene Semeco (56.60) | Venezuela | 3:46.24 | NR |
| 5 | 6 | Carolina Colorado Henao (57.28) María Álvarez (57.26) Jessica Camposano (57.13) Isabella Arcila (55.63) | Colombia | 3:47.30 | NR |
| 6 | 7 | Maria Hichaud (57.48) Natasha Gvakharia (57.40) Esther González (56.83) Liliana Ibáñez (55.94) | Mexico | 3:47.65 | NR |
| 7 | 1 | Kaori Miyahara (59.28) Andrea Cedrón (58.11) Jessica Cattaneo (57.74) McKenna DeBever (57.30) | Peru | 3:52.43 | NR |
| 8 | 8 | Breanna Roman (58.03) Alia Atkinson (55.77) Danielle Boothe (1:00.22) Trudian Patrick (1:01.99) | Jamaica | 3:56.01 | |