| Event: | Men's 100 metre breaststroke |
| Games: | 1979 |
| Venue: | Piscina Olimpica Del Escambron |
| Dates: | July 2 (preliminaries and finals) |
| Competitors: | 19 |
| Nations: | - |
| Win Label: | Winning score |
| Gold: | Steve Lundquist |
| Goldnoc: | USA |
| Silver: | Greg Winchell |
| Silvernoc: | USA |
| Bronze: | Graham Smith |
| Bronzenoc: | CAN |
| Prev: | 1975 |
| Next: | 1983 |
The men's 100 metre breaststroke competition of the swimming events at the 1979 Pan American Games took place on 2 July at the Piscina Olimpica Del Escambron.[1] The last Pan American Games champion was Rick Colella of the US.[2] [3] [4] [5] [6] [7]
This race consisted of two lengths of the pool, both lengths being in breaststroke.[8]
All times shown are in minutes and seconds.
The first round was held on July 2.
| Rank | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|
| 1 | 1:05.42 | Q | |||
| 2 | 1:05.98 | Q | |||
| 3 | 1:06.78 | Q | |||
| 4 | 1:06.85 | Q | |||
| 5 | 1:07.00 | Q | |||
| 6 | 1:07.20 | Q | |||
| 7 | 1:07.21 | Q | |||
| 8 | 1:07.64 | Q, NR | |||
| 9 | 1:07.83 | ||||
| 10 | 1:08.27 | NR | |||
| 11 | 1:09.63 | ||||
| 12 | 1:09.95 | NR | |||
| 13 | 1:10.03 | ||||
| 14 | 1:12.84 | ||||
| 15 | 1:12.92 | ||||
| 16 | 1:13.86 | NR | |||
| 17 | 1:15.21 | NR | |||
| 18 | 1:16.51 | ||||
| 19 | 1:18.06 |
The final was held on July 2.
| Rank | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|
| 1:03.82 | NR, GR | ||||
| 1:04.76 | |||||
| 1:05.66 | |||||
| 4 | 1:06:00 | NR | |||
| 5 | 1:06.64 | ||||
| 6 | 1:06.72 | NR | |||
| 7 | 1:07.54 | ||||
| 8 | 1:08.35 |