| Event: | Men's 100 metre freestyle |
| Games: | 2015 |
| Venue: | CIBC Pan Am/Parapan Am Aquatics Centre and Field House |
| Dates: | July 14 (preliminaries and finals) |
| Competitors: | 24 |
| Nations: | 21 |
| Win Value: | 48.26 |
| Win Label: | Winning time |
| Gold: | Federico Grabich |
| Goldnoc: | ARG |
| Silver: | Santo Condorelli |
| Silvernoc: | CAN |
| Bronze: | Marcelo Chierighini |
| Bronzenoc: | BRA |
| Prev: | 2011 |
| Next: | 2019 |
The men'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.[1] The defending Pan American Games champion was César Cielo Filho of Brazil.
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 (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 | 46.91 | Rome, Italy | July 30, 2009 | ||
| Pan American Games record | 47.84 | Guadalajara, Mexico | October 16, 2011 |
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 (50.05) 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 (53.05) 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 14, 2015 | 10:18 | Heats | |
| July 14, 2015 | 19:15 | Final B | |
| July 14, 2015 | 19:20 | 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 14.[3]
| Rank | Heat | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|---|
| 1 | 2 | 5 | 48.60 | QA, NR | |||
| 2 | 1 | 4 | 48.88 | QA | |||
| 3 | 2 | 4 | 48.92 | QA | |||
| 4 | 3 | 6 | 49.07 | QA | |||
| 1 | 5 | QA | |||||
| 6 | 1 | 3 | 49.29 | QA | |||
| 7 | 2 | 6 | 49.47 | QA, NR | |||
| 8 | 3 | 4 | 49.52 | QA | |||
| 9 | 3 | 5 | 49.58 | QB | |||
| 10 | 3 | 3 | 49.88 | QB | |||
| 11 | 2 | 3 | 50.09 | QB | |||
| 12 | 1 | 6 | 50.14 | QB | |||
| 13 | 2 | 1 | 50.82 | QB | |||
| 14 | 3 | 2 | 51.29 | QB | |||
| 15 | 3 | 7 | 51.71 | QB | |||
| 16 | 2 | 2 | 52.16 | QB | |||
| 17 | 1 | 7 | 52.55 | ||||
| 18 | 1 | 2 | 52.59 | ||||
| 19 | 1 | 1 | 52.90 | ||||
| 20 | 3 | 1 | 52.92 | ||||
| 21 | 2 | 7 | 53.40 | ||||
| 22 | 3 | 8 | 55.66 | ||||
| 23 | 1 | 8 | 58.01 | ||||
| 24 | 2 | 8 | 58.29 |
The B final was also held on July 14.[4]
| Rank | Lane | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
| 9 | 4 | 49.56 | |||
| 10 | 3 | 49.88 | |||
| 11 | 5 | 49.97 | |||
| 12 | 6 | 50.83 | |||
| 13 | 2 | 51.70 | |||
| 14 | 8 | 52.23 | |||
| 15 | 7 | 52.59 | |||
| 1 |
The A final was also held on July 14.[5]
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 4 | 48.26 | |||||
| 5 | 48.57 | |||||
| 3 | 48.80 | |||||
| 4 | 6 | 49.06 | ||||
| 5 | 7 | 49.10 | ||||
| 6 | 2 | 49.26 | ||||
| 7 | 8 | 49.58 | ||||
| 8 | 1 | 49.60 |