| Event: | Men's 100 metre backstroke |
| Games: | 1979 |
| Venue: | Piscina Olimpica Del Escambron |
| Dates: | July 2 (preliminaries and finals) |
| Competitors: | - |
| Nations: | - |
| Win Label: | Winning score |
| Gold: | Bob Jackson |
| Goldnoc: | USA |
| Silver: | Rômulo Arantes |
| Silvernoc: | BRA |
| Bronze: | Steve Pickell |
| Bronzenoc: | CAN |
| Prev: | 1975 |
| Next: | 1983 |
The men's 100 metre backstroke 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 Peter Rocca of US.[2] [3] [4] [5] [6] [7]
This race consisted of two lengths of the pool, all in backstroke.[8]
All times are in minutes and seconds.
The first round was held on July 2.
| Rank | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|
| 1 | 57.69 | Q | |||
| 2 | 58.05 | Q | |||
| 3 | 58.32 | Q | |||
| 4 | 58.72 | Q | |||
| 5 | 59.50 | Q | |||
| 6 | 59.52 | Q | |||
| 7 | 1:00.24 | Q | |||
| 8 | José Urueta | 1:00.39 | Q | ||
| 9 | 1:00.52 | ||||
| 10 | 1:01.74 | ||||
| 11 | 1:01.84 | ||||
| 12 | 1:02.42 | ||||
| 13 | 1:03.53 | NR | |||
| 14 | 1:03.82 | ||||
| 15 | 1:05.77 | ||||
| 16 | 1:07.11 | ||||
| 17 | 1:10.40 |
The final was held on July 2.
| Rank | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|
| 56.66 | NR, GR | ||||
| 57.20 | SA | ||||
| 57.89 | |||||
| 4 | 57.98 | ||||
| 5 | 57.99 | ||||
| 6 | 59.52 | ||||
| 7 | 59.86 | ||||
| 8 | José Urueta | 1:00.37 |