800 metres Freestyle, Boys
Participants
| Nr. | Athlete | NOC |
|---|---|---|
| 1 | Pol Arias |  AND |
| 2 | Colin Gilbert |  CAN |
| 3 | Alonso Pérez |  CHI |
| 4 | Sven Arnar Saemundsson |  CRO |
| 5 | Luis Vega |  CUB |
| 6 | Ahmed Akram |  EGY |
| 7 | Marcelo Acosta |  ESA |
| 8 | Marc Vivas |  ESP |
| 9 | Rahiti De Vos |  FRA |
| 10 | Ido Haber |  ISR |
| 11 | Marc Hinawi | ISR |
| 12 | Yudai Amada |  JPN |
| 13 | Welson Sim |  MAS |
| 14 | Alexei Sancov |  MDA |
| 15 | Ricardo Vargas |  MEX |
| 16 | Henrik Christiansen |  NOR |
| 17 | Michael Mincham |  NZL |
| 18 | Wojciech Wojdak |  POL |
| 19 | Rafael Gil |  POR |
| 20 | Brent Szurdoki |  RSA |
| 21 | Grega Popovic |  SLO |
| 22 | Vuk Čelić |  SRB |
| 23 | Tanakrit Kittiya |  THA |
| 24 | Mykhailo Romanchuk |  UKR |
| 25 | Patrick Ransford |  USA |
Non-starters
| Nr. | Athlete | NOC |
|---|---|---|
| 1 | Nils Liess |  SUI |