400 metres Freestyle, Men
Participants
| Nr. | Athlete | NOC |
|---|---|---|
| 1 | Jack McLoughlin |  AUS |
| 2 | Elijah Winnington | AUS |
| 3 | Felix Auböck |  AUT |
| 4 | Alex Sobers |  BAR |
| 5 | James Freeman |  BOT |
| 6 | Guilherme Costa |  BRA |
| 7 | Eduardo Cisternas |  CHI |
| 8 | Ji Xinjie |  CHN |
| 9 | Wesley Roberts |  COK |
| 10 | Marwan El-Kamash |  EGY |
| 11 | Kregor Zirk |  EST |
| 12 | David Aubry |  FRA |
| 13 | Kieran Bird |  GBR |
| 14 | Irakli Revishvili |  GEO |
| 15 | Lukas Märtens |  GER |
| 16 | Henning Mühlleitner | GER |
| 17 | Gábor Zombori |  HUN |
| 18 | Aflah Prawira |  INA |
| 19 | Marco De Tullio |  ITA |
| 20 | Gabriele Detti | ITA |
| 21 | Lee Ho-Jun |  KOR |
| 22 | Danas Rapšys |  LTU |
| 23 | Welson Sim |  MAS |
| 24 | Filip Derkoski |  MKD |
| 25 | Igor Mogne |  MOZ |
| 26 | Henrik Christiansen |  NOR |
| 27 | Zac Reid |  NZL |
| 28 | Joaquín Vargas |  PER |
| 29 | Martin Malyutin |  ROC |
| 30 | Aleksandr Yegorov | ROC |
| 31 | Martin Bau |  SLO |
| 32 | Antonio Djakovic |  SUI |
| 33 | Ahmed Hafnaoui |  TUN |
| 34 | Jake Mitchell |  USA |
| 35 | Kieran Smith | USA |
| 36 | Alfonso Mestre |  VEN |