| Event: | Men's 100 metre breaststroke |
| Games: | 2011 |
| Venue: | Scotiabank Aquatics Center |
| Dates: | October 16 (preliminaries and finals) |
| Win Label: | Winning score |
| Gold: | Felipe França Silva |
| Goldnoc: | BRA |
| Silver: | Felipe Lima |
| Silvernoc: | BRA |
| Bronze: | Marcus Titus |
| Bronzenoc: | USA |
| Prev: | 2007 |
| Next: | 2015 |
The men's 100 metre breaststroke competition of the swimming events at the 2011 Pan American Games took place on October 16 at the Scotiabank Aquatics Center in Mexico.[1] The defending Pan American Games champion was Scott Dickens of Canada.
This race consisted of two lengths of the pool, both being in breaststroke.[2]
Prior to this competition, the existing world and Pan American Games records were as follows:
| World record | 58.58 | Rome, Italy | July 27, 2009 | ||
| Pan American Games record | 1:00.24 | Rio de Janeiro, Brazil | July 17, 2007 |
Each National Olympic Committee (NOC) was able to enter up to two entrants providing they had met the A standard (1:04.7) in the qualifying period (January 1, 2010 to September 4, 2011). NOCs were also permitted to enter one athlete providing they had met the B standard (1:06.6) in the same qualifying period.[2]
All times are in minutes and seconds.
The first round was held on October 16.[3]
| Rank | Heat | Lane | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | 4 | align=left | align=left | 1:00.71 | QA | |||
| 2 | 3 | 5 | align=left | align=left | 1:01.28 | QA | |||
| 3 | 2 | 4 | align=left | align=left | 1:01.38 | QA | |||
| 4 | 1 | 4 | align=left | align=left | 1:02.24 | QA | |||
| 5 | 2 | 5 | align=left | align=left | 1:02.29 | QA | |||
| 6 | 2 | 6 | align=left | align=left | 1:03.05 | QA | |||
| 7 | 1 | 3 | align=left | align=left | 1:03.23 | QA | |||
| 8 | 3 | 3 | align=left | align=left | 1:03.25 | QA | |||
| 9 | 1 | 5 | align=left | align=left | 1:03.31 | QB | |||
| 10 | 3 | 2 | align=left | align=left | 1:03.40 | QB | |||
| 11 | 2 | 3 | align=left | align=left | 1:03.79 | QB | |||
| 12 | 3 | 6 | align=left | align=left | 1:04.02 | QB | |||
| 13 | 1 | 6 | align=left | align=left | 1:04.34 | QB | |||
| 14 | 3 | 1 | align=left | align=left | 1:04.67 | QB | |||
| 15 | 1 | 1 | align=left | align=left | 1:05.36 | QB | |||
| 16 | 3 | 8 | align=left | align=left | 1:05.62 | QB | |||
| 17 | 2 | 2 | align=left | align=left | 1:05.72 | ||||
| 18 | 2 | 7 | align=left | align=left | 1:05.80 | ||||
| 19 | 1 | 7 | align=left | align=left | 1:05.84 | ||||
| 20 | 1 | 2 | align=left | align=left | 1:06.40 | ||||
| 21 | 2 | 1 | align=left | align=left | 1:06.54 | ||||
| 22 | 2 | 8 | align=left | align=left | 1:07.49 | ||||
| 23 | 3 | 7 | align=left | align=left | 1:08.07 |
The B final was also held on October 16.[4]
| Rank | Lane | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|---|
| 9 | 4 | align=left | align=left | 1:03.50 | ||||
| 10 | 5 | align=left | align=left | 1:03.53 | ||||
| 11 | 3 | align=left | align=left | 1:04.22 | ||||
| 12 | 2 | align=left | align=left | 1:04.23 | ||||
| 13 | 6 | align=left | align=left | 1:04.29 | ||||
| 14 | 7 | align=left | align=left | 1:04.50 | ||||
| 15 | 1 | align=left | align=left | 1:05.22 | ||||
| 16 | 8 | align=left | align=left | 1:05.68 |
The A final was also held on October 16.[5]
| Rank | Lane | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|---|
| 4 | align=left | align=left | 1:00.34 | |||||
| 6 | align=left | align=left | 1:00.99 | |||||
| 5 | align=left | align=left | 1:01.12 | |||||
| 4 | 3 | align=left | align=left | 1:01.17 | ||||
| 5 | 2 | align=left | align=left | 1:03.08 | ||||
| 6 | 7 | align=left | align=left | 1:03.10 | ||||
| 7 | 8 | align=left | align=left | 1:03.11 | ||||
| 8 | 1 | align=left | align=left | 1:03.63 |