Swimming at the 2015 Pan American Games – Women's 100 metre freestyle
The women's 100 metre freestyle 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 was Amanda Kendall of the United States.
This race consisted of two lengths of the pool, both lengths in freestyle. The top eight swimmers from the heats would qualify for the A final, while the next best eight swimmers would qualify for the B final.
Records
Prior to this competition, the existing world and Pan American Games records were as follows:| World Record | 52.07 | Rome, Italy | July 31, 2009 | |
| Pan American Games record | 54.46 | Santo Domingo, Dominican Republic | August 11, 2003 |
The following new records were set during this competition.
| Date | Event | Name | Nationality | Time | Record |
| 14 July | Heats | Natalie Coughlin | 53.85 | GR | |
| 14 July | A Final | Chantal van Landeghem | 53.83 | GR |
Qualification
Each National Olympic Committee was able to enter up to two entrants providing they had met the A standard in the qualifying period. NOCs were also permitted to enter one athlete providing they had met the B standard in the same qualifying period. All other competing athletes were entered as universality spots.Schedule
All times are Eastern Time Zone.| Date | Time | Round |
| July 14, 2015 | 10:05 | Heats |
| July 14, 2015 | 19:05 | Final B |
| July 14, 2015 | 19:10 | Final A |
Results
Heats
The first round was held on July 14.| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 3 | 4 | Natalie Coughlin | 53.85 | QA, GR | |
| 2 | 4 | 4 | Arianna Vanderpool-Wallace | 54.00 | QA | |
| 3 | 4 | 5 | Chantal van Landeghem | 54.31 | QA | |
| 4 | 3 | 5 | Amanda Weir | 54.36 | QA | |
| 5 | 2 | 5 | Larissa Oliveira | 55.01 | QA | |
| 6 | 2 | 4 | Michelle Williams | 55.29 | QA | |
| 7 | 3 | 6 | Vanessa García | 55.45 | QA | |
| 8 | 4 | 3 | Graciele Herrmann | 55.54 | QA | |
| 9 | 4 | 6 | Liliana Ibáñez | 55.80 | QB | |
| 10 | 3 | 3 | Isabella Arcila | 56.12 | QB | |
| 11 | 2 | 3 | Alia Atkinson | 56.29 | QB | |
| 12 | 3 | 7 | Arlene Semeco | 56.56 | QB | |
| 13 | 3 | 2 | Aixa Triay | 56.82 | QB | |
| 14 | 2 | 2 | Elisbet Gamez | 56.94 | QB | |
| 15 | 4 | 2 | Chinyere Pigot | 57.29 | QB | |
| 16 | 2 | 7 | McKenna De Bever | 57.40 | QB | |
| 17 | 4 | 7 | Karen Torrez | 57.49 | ||
| 18 | 2 | 6 | Ariel Weech | 57.80 | ||
| 19 | 3 | 1 | Allyson Ponson | 57.89 | ||
| 20 | 4 | 1 | Loren Bahamonde | 58.29 | ||
| 21 | 4 | 8 | Inés Remersaro | 58.81 | ||
| 22 | 3 | 8 | Marie Meza | 58.89 | ||
| 23 | 2 | 1 | Karen Riveros | 58.94 | ||
| 24 | 2 | 8 | Elinah Phillip | |||
| 25 | 1 | 4 | Dalia Torrez | |||
| 26 | 1 | 3 | Jamaris Washshah | |||
| 27 | 1 | 5 | Samantha Roberts | |||
| 28 | 1 | 6 | Onika George |
B Final
The B final was also held on July 14.| Rank | Lane | Name | Nationality | Time | Notes |
| 9 | 4 | Liliana Ibáñez | 55.90 | ||
| 10 | 5 | Isabella Arcila | 56.37 | ||
| 11 | 6 | Elisbet Gamez | 56.84 | ||
| 12 | 3 | Aixa Triay | 56.87 | ||
| 13 | 2 | Chinyere Pigot | 57.25 | ||
| 14 | 7 | McKenna De Bever | 57.56 | ||
| 15 | 8 | Ariel Weech | 57.79 | ||
| 15 | 1 | Karen Torrez | 57.79 |
A Final
The A final was also held on July 14.| Rank | Lane | Name | Nationality | Time | Notes |
| 3 | Chantal van Landeghem | 53.83 | GR, NR | ||
| 4 | Natalie Coughlin | 54.06 | |||
| 5 | Arianna Vanderpool-Wallace | 54.15 | |||
| 4 | 7 | Michelle Williams | 54.55 | ||
| 5 | 2 | Larissa Oliveira | 54.61 | =SA | |
| 6 | 8 | Graciele Herrmann | 55.01 | ||
| 7 | 1 | Vanessa García | 55.26 | ||
| 8 | 6 | Amanda Weir | 55.73 |