| Date | 11 October 2018 — 18:58 |
|---|---|
| Location | Natatorium, Parque Olímpico de la Juventud, Villa Soldati, Buenos Aires |
| Pos | Competitor | NOC | Time | |||
|---|---|---|---|---|---|---|
| 1 | Michael Houlie |  RSA | 27.33 | |||
| 2 | Denis Petrashov |  KGZ | 28.62 | |||
| 3 | Santiago Saint-Upery |  URU | 28.76 | |||
| 4 | Juri Dijkstra |  NED | 28.77 | |||
| 5 | Andrés Puente |  MEX | 28.97 | |||
| 6 | Yu Hanaguruma |  JPN | 29.01 | |||
| 7 | Samy Boutouil |  MAR | 29.10 | |||
| 8 | Izaak Bastian |  BAH | 29.35 |
