The men's 50 metre freestyle S3 event at the 2024 Paralympic Games took place on 6 September 2024, at the Paris La Défense Arena.

Heats The swimmers with the top eight times, regardless of heat, advanced to the final.

Rank Heat Lane Name Nationality Time Notes 1 2 3 Umut Ünlü 44.90 2 1 4 Serhii Palamarchuk 45.59 3 2 5 Denys Ostapchenko 46.55 4 1 3 Diego López Díaz 47.61 5 2 4 Josia Topf 49.11 6 1 5 Daniel Ferrer Robles 49.15 7 2 6 Vincenzo Boni 51.04 8 2 2 Marcos Zárate 51.33 9 2 7 Ahmed Kelly 52.48 10 1 6 Krzyzstof Lechniak 52.76 11 1 2 Gabriel Araújo 52.94 12 1 7 Emmanuele Marigliano 55.62 13 2 1 Charkorn Kaewsri 57.89 14 1 1 Ioannis Kostakis

Final

Rank Lane Name Nationality Time Notes 4 Umut Ünlü 44.83 3 Denys Ostapchenko 45.14 2 Josia Topf 45.61 4 5 Serhii Palamarchuk 46.35 5 7 Daniel Ferrer Robles 46.58 6 6 Diego López Díaz 46.59 7 1 Vincenzo Boni 50.95 8 8 Marcos Zárate 52.36

References