4 × 100 metres Freestyle Relay, Boys
Participants
| Nr. | Athlete | NOC |
|---|---|---|
| 1 | Grayson Bell |  AUS |
| 2 | Nic Brown | AUS |
| 3 | Kyle Chalmers | AUS |
| 4 | Nic Groenewald | AUS |
| 5 | Li Guangyuan |  CHN |
| 6 | Li Zhuhao | CHN |
| 7 | Yu Hexin | CHN |
| 8 | Zhang Zhihao | CHN |
| 9 | Gonzalo Carazo |  ESP |
| 10 | Juan Marín | ESP |
| 11 | Guillermo Sánchez | ESP |
| 12 | Marc Vivas | ESP |
| 13 | Rahiti De Vos |  FRA |
| 14 | Jean Dencausse | FRA |
| 15 | Guillaume Laure | FRA |
| 16 | Geoffroy Mathieu | FRA |
| 17 | Luke Greenbank |  GBR |
| 18 | Miles Munro | GBR |
| 19 | Duncan Scott | GBR |
| 20 | Martyn Walton | GBR |
| 21 | Alexander Kunert |  GER |
| 22 | Max Pilger | GER |
| 23 | Marek Ulrich | GER |
| 24 | Damian Wierling | GER |
| 25 | Alessandro Bori |  ITA |
| 26 | Giacomo Carini | ITA |
| 27 | Nicolangelo Di Fabio | ITA |
| 28 | Simone Sabbioni | ITA |
| 29 | Yudai Amada |  JPN |
| 30 | Yuta Sato | JPN |
| 31 | Koki Tsunefuka | JPN |
| 32 | Ippei Watanabe | JPN |
| 33 | Jarred Crous |  RSA |
| 34 | Chris Reid | RSA |
| 35 | Joshua Steyn | RSA |
| 36 | Brent Szurdoki | RSA |
| 37 | Anton Chupkov |  RUS |
| 38 | Yevgeny Rylov | RUS |
| 39 | Aleksandr Sadovnikov | RUS |
| 40 | Filipp Shopin | RUS |
| 41 | Patrick Conaton |  USA |
| 42 | Patrick Mulcare | USA |
| 43 | Patrick Ransford | USA |
| 44 | Justin Wright | USA |