| Event: | Women's 400 metre freestyle |
| Games: | 2015 |
| Venue: | CIBC Pan Am/Parapan Am Aquatics Centre and Field House |
| Dates: | July 17 (preliminaries and finals) |
| Competitors: | 17 |
| Nations: | 12 |
| Win Value: | 4:08.42 |
| Win Label: | Winning time |
| Gold: | Emily Overholt |
| Goldnoc: | CAN |
| Silver: | Andreina Pinto |
| Silvernoc: | VEN |
| Bronze: | Gillian Ryan |
| Bronzenoc: | USA |
| Prev: | 2011 |
| Next: | 2019 |
The women's 400 metre freestyle competition of the swimming events at the 2015 Pan American Games took place on July 17 at the CIBC Pan Am/Parapan Am Aquatics Centre and Field House in Toronto, Canada.[1] The defending Pan American Games champion was Gillian Ryan of the United States.
This race consisted of eight lengths of the pool in freestyle. The top eight swimmers from the heats would qualify for the A final (where the medals would be awarded), while the next best eight swimmers would qualify for the B final.[2]
Prior to this competition, the existing world and Pan American Games records were as follows:
| World record | 3:58.37 | Gold Coast, Australia | August 23, 2014 | ||
| Pan American Games record | 4:10.48 | Santo Domingo, Dominican Republic | August 13, 2003 |
See main article: Swimming at the 2015 Pan American Games – Qualification. Each National Olympic Committee (NOC) was able to enter up to two entrants providing they had met the A standard (4:17.99) in the qualifying period (January 1, 2014 to May 1, 2015). NOCs were also permitted to enter one athlete providing they had met the B standard (4:33.47) in the same qualifying period.[2] All other competing athletes were entered as universality spots.[2]
All times are Eastern Time Zone (UTC-4).
| Date | Time | Round | |
|---|---|---|---|
| July 17, 2015 | 10:29 | Heats | |
| July 17, 2015 | 19:43 | Final B | |
| July 17, 2015 | 19:52 | Final A |
| KEY: | bgcolor=ccffcc align=center | q | Fastest non-qualifiers | bgcolor=ccffcc align=center | Q | Qualified | GR | Games record | NR | National record | PB | Personal best | SB | Seasonal best |
The first round was held on July 17.[3]
| Rank | Heat | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|---|
| 1 | 3 | 5 | 4:11.82 | QA | |||
| 2 | 3 | 4 | 4:12.43 | QA | |||
| 3 | 3 | 3 | 4:15.38 | QA | |||
| 4 | 1 | 5 | 4:15.51 | QA | |||
| 5 | 2 | 4 | 4:15.95 | QA | |||
| 6 | 3 | 2 | 4:16.90 | QA | |||
| 7 | 2 | 3 | 4:16.92 | QA | |||
| 8 | 1 | 4 | 4:18.21 | QA | |||
| 9 | 1 | 3 | 4:18.30 | QB | |||
| 10 | 2 | 5 | 4:18.70 | QB | |||
| 11 | 3 | 6 | 4:20.45 | QB | |||
| 12 | 2 | 2 | 4:21.10 | QB | |||
| 13 | 2 | 6 | 4:21.31 | QB | |||
| 14 | 1 | 6 | 4:24.73 | QB | |||
| 15 | 3 | 7 | 4:28.01 | QB | |||
| 16 | 2 | 7 | 4:29.19 | QB | |||
| 17 | 1 | 2 | 4:29.46 |
The B final was also held on July 17.[4]
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 9 | 5 | 4:16.03 | ||||
| 10 | 7 | 4:16.79 | ||||
| 11 | 4 | 4:17.25 | ||||
| 12 | 3 | 4:17.49 | ||||
| 13 | 6 | 4:18.23 | ||||
| 14 | 2 | 4:23.93 | ||||
| 15 | 8 | 4:27.89 | ||||
| 16 | 1 | 4:30.14 |
The A final was also held on July 17.[5]
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 8 | 4:08.42 | GR | ||||
| 5 | 4:08.67 | |||||
| 2 | 4:09.46 | |||||
| 4 | 3 | 4:10.92 | NR | |||
| 5 | 4 | 4:11.32 | ||||
| 6 | 6 | 4:14.51 | ||||
| 7 | 1 | 4:17.40 | ||||
| 8 | 7 | 4:17.80 |