| Final A | Team | time | -time | L | React. | | 1. Cesar Cielo | BRA | 21.58 | RP | 4 | 0.68s | | 2. Bruno Fratus | --- | 22.05 | 0.47s | 3 | 0.72s | | 3. Hanser Garcia | --- | 22.15 | 0.57s | 5 | 0.67s | | 4. William Copeland | --- | 22.30 | 0.72s | 2 | 0.64s | | 5. Brett Fraser | --- | 22.60 | 1.02s | 6 | 0.65s | | 6. Bryan Lundquist | --- | 22.67 | 1.09s | 7 | 0.66s | | 7. Roy-Allan Burch | --- | 22.82 | 1.24s | 8 | 0.67s | | 8. Federico Grabich | --- | 22.97 | 1.39s | 1 | 0.72s |
| Final B | Team | time | -time | L | React. | | 9. Elvis Vereance Burrows | --- | 23.05 | | 6 | 0.66s | | 10.Lucas Del Piccolo | --- | 23.07 | 0.02s | 5 | 0.75s | | 11.Jose Gabriel Melconian | --- | 23.10 | 0.05s | 4 | 0.69s | | 12.Roberto Gomez | --- | 23.12 | 0.07s | 3 | 0.70s | | 13.Rory Biskupski | --- | 23.58 | 0.53s | 1 | 0.68s | | 14.Alejandro Escudero | --- | 23.61 | 0.56s | 2 | 0.23s | | 15.Perry Lindo | --- | 23.65 | 0.60s | 7 | 0.78s | | 16.Martyn Forde | --- | 23.67 | 0.62s | 8 | 0.65s |
| Swimm-off | Team | time | -time | L | React. | | 1. Roy-Allan Burch | --- | 22.76s | | 5. | | | 2. Jose Gabriel Melconian | --- | 23.07s | 0.31s | 4. | |
|
| World record: | | Pan American Games record: |
| Qualification: | | Standard A: 23.3s | | Standard B: 23.8s |
|
| Heats | Team | time | -time | H | React. | Heat | | 1. Cesar Cielo | --- | 22.17 | | 4 | 0.71s | Heat 3. | | 2. Hanser Garcia | --- | 22.37 | 0.20s | 5 | 0.72s | Heat 2. | | 3. Bruno Fratus | --- | 22.44 | 0.27s | 4 | 0.75s | Heat 2. | | 4. Brett Fraser | --- | 22.73 | 0.56s | 5 | 0.64s | Heat 1. | | 5. William Copeland | --- | 22.75 | 0.58s | 4 | 0.67s | Heat 1. | | 6. Bryan Lundquist | --- | 22.77 | 0.60s | 5 | 0.71s | Heat 3. | | 7. Federico Grabich | --- | 22.87 | 0.70s | 6 | 0.70s | Heat 3. | | 8. Roy-Allan Burch | --- | 22.96 | 0.79s | 3 | 0.67s | Heat 3. | | 8. Jose Gabriel Melconian | --- | 22.96 | 0.79s | 6 | 0.71s | Heat 1. | | 10.Lucas Del Piccolo | --- | 23.02 | 0.85s | 3 | 0.74s | Heat 1. | | 11.Roberto Gomez | --- | 23.11 | 0.94s | 6 | 0.72s | Heat 2. | | 12.Elvis Vereance Burrows | --- | 23.36 | 1.19s | 3 | 0.66s | Heat 2. | | 13.Alejandro Escudero | --- | 23.48 | 1.31s | 7 | 0.76s | Heat 1. | | 14.Perry Lindo | --- | 23.60 | 1.43s | 2 | 0.76s | Heat 2. | | 15.Rory Biskupski | --- | 23.64 | 1.47s | 2 | 0.70s | Heat 3. | | 16.Martyn Forde | --- | 23.71 | 1.54s | 2 | 0.69s | Heat 1. | | 17.Antonio Cisneros | --- | 23.72 | 1.55s | 7 | 0.69s | Heat 2. | | 18.Oliver Elliot | --- | 23.74 | 1.57s | 7 | 0.37s | Heat 3. | | 19.Tolga Akcayli | --- | 25.65 | 3.48s | 1 | 0.74s | Heat 3. | | -. Niall Roberts | --- | DNS | | 1 | | Heat 2. |
|
|
| 