| Date | 11 October 2018 |
|---|---|
| Status | YOG |
| Location | Natatorium, Parque Olímpico de la Juventud, Villa Soldati, Buenos Aires |
| Participants | 26 from 22 countries |
| Pos | Swimmer | NOC | Final | |||
|---|---|---|---|---|---|---|
| 1 | Nguyễn Huy Hoàng | VIE | 7:50.20 (1 h4) | Gold | ||
| 2 | Keisuke Yoshida | JPN | 7:53.85 (2 h4) | Silver | ||
| 3 | Marco De Tullio | ITA | 7:55.81 (3 h4) | Bronze | ||
| 4 | Ákos Kalmár | HUN | 7:56.43 (4 h4) | |||
| 5 | Paul Beaugrand | FRA | 8:01.93 (5 h4) | |||
| 6 | Johannes Calloni | ITA | 8:03.30 (6 h4) | |||
| 7 | Ahmed Hafnaoui | TUN | 8:04.43 (1 h2) | |||
| 8 | Zac Reid | NZL | 8:05.27 (7 h4) | |||
| 9 | José Paulo Lopes | POR | 8:09.43 (1 h3) | |||
| 10 | Ferran Juliá | ESP | 8:09.92 (8 h4) | |||
| 11 | Bartłomiej Koziejko | POL | 8:09.97 (2 h3) | |||
| 12 | Aaron Schmidt | GER | 8:11.73 (3 h3) | |||
| 13 | Tommy-Lee Camblong | FRA | 8:11.82 (4 h3) | |||
| 14 | Marcos Gil | ESP | 8:12.93 (5 h3) | |||
| 15 | Yordan Yanchev | BUL | 8:13.49 (2 h2) | |||
| 16 | Andreas Georgakopoulos | GRE | 8:14.71 (6 h3) | |||
| 17 | Advait Page | IND | 8:16.06 (7 h3) | |||
| 18 | Boris Lačanski | SRB | 8:16.17 (3 h2) | |||
| 19 | Kanstantsin Kurachkin | BLR | 8:17.62 (4 h2) | |||
| 20 | James Freeman | BOT | 8:18.64 (5 h2) | |||
| 21 | Murilo Sartori | BRA | 8:22.27 (6 h2) | |||
| 22 | Will Barao | USA | 8:23.60 (8 h3) | |||
| 23 | Filipe Santo | POR | 8:24.48 (7 h2) | |||
| 24 | Sarith Petchakul | THA | 8:38.52 (1 h1) | |||
| 25 | Amadou N'Diaye | SEN | 8:47.04 (2 h1) | |||
| 26 | Murray Macpherson | MAW | 9:35.82 (3 h1) |
Final round heats only. Rankings based on best times.
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | – | Sarith Petchakul | THA | 8:38.52 | |||
| 2 | – | Amadou N'Diaye | SEN | 8:47.04 | |||
| 3 | – | Murray Macpherson | MAW | 9:35.82 |
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | – | Ahmed Hafnaoui | TUN | 8:04.43 | |||
| 2 | – | Yordan Yanchev | BUL | 8:13.49 | |||
| 3 | – | Boris Lačanski | SRB | 8:16.17 | |||
| 4 | – | Kanstantsin Kurachkin | BLR | 8:17.62 | |||
| 5 | – | James Freeman | BOT | 8:18.64 | |||
| 6 | – | Murilo Sartori | BRA | 8:22.27 | |||
| 7 | – | Filipe Santo | POR | 8:24.48 |
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | – | José Paulo Lopes | POR | 8:09.43 | |||
| 2 | – | Bartłomiej Koziejko | POL | 8:09.97 | |||
| 3 | – | Aaron Schmidt | GER | 8:11.73 | |||
| 4 | – | Tommy-Lee Camblong | FRA | 8:11.82 | |||
| 5 | – | Marcos Gil | ESP | 8:12.93 | |||
| 6 | – | Andreas Georgakopoulos | GRE | 8:14.71 | |||
| 7 | – | Advait Page | IND | 8:16.06 | |||
| 8 | – | Will Barao | USA | 8:23.60 |
| Pos | Lane | Swimmer | NOC | Time | |||
|---|---|---|---|---|---|---|---|
| 1 | – | Nguyễn Huy Hoàng | VIE | 7:50.20 | |||
| 2 | – | Keisuke Yoshida | JPN | 7:53.85 | |||
| 3 | – | Marco De Tullio | ITA | 7:55.81 | |||
| 4 | – | Ákos Kalmár | HUN | 7:56.43 | |||
| 5 | – | Paul Beaugrand | FRA | 8:01.93 | |||
| 6 | – | Johannes Calloni | ITA | 8:03.30 | |||
| 7 | – | Zac Reid | NZL | 8:05.27 | |||
| 8 | – | Ferran Juliá | ESP | 8:09.92 |