| Athlete | Country | Sports | Date of birth |
|---|---|---|---|
| Veronika Antošová | SSK | 27 November 2000 | |
| Mathieu Belloir | SSK | 22 April 2000 | |
| Joy Beune | SSK | 28 April 1999 | |
| Marcel Bosker | SSK | 19 January 1997 | |
| Bogdan Brauer | SSK | 26 September 2002 | |
| Merel Conijn | SSK | 19 October 2001 | |
| Daniele Di Stefano | SSK | 12 February 1999 | |
| Philip Due Schmidt | SSK | 10 February 1997 | |
| Sander Eitrem | SSK | 12 February 2002 | |
| Davide Ghiotto | SSK | 3 December 1993 | |
| Andrea Giovannini | SSK | 27 August 1993 | |
| Konstantin Götze | SSK | 11 December 2000 | |
| Josie Hofmann | SSK | 10 December 1996 | |
| Chris Huizinga | SSK | 11 August 1997 | |
| Natalia Jabrzyk | SSK | 3 March 2001 | |
| Maira Jasch | SSK | 28 March 2005 | |
| Antoinette de Jong | SSK | 6 April 1995 | |
| Olga Kaczmarek-Piotrowska | SSK | 4 October 1999 | |
| Kim Min-Seok | SSK | 14 June 1999 | |
| Peder Kongshaug | SSK | 13 August 2001 | |
| Zuzana Kuršová | SSK | 2 April 2003 | |
| Francesca Lollobrigida | SSK | 7 February 1991 | |
| Veronica Luciani | SSK | 17 January 1998 | |
| Aurora Løvås | SSK | 14 March 2005 | |
| Alice Marletti | SSK | 8 July 2004 | |
| Indra Médard | SSK | 4 October 1998 | |
| Julia Nizan | SSK | 1 July 2003 | |
| Fridtjof Petzold | SSK | 9 April 1997 | |
| Jeannine Rosner | SSK | 8 October 2006 | |
| Vladimir Semirunniy | SSK | 11 December 2002 | |
| Beau Snellink | SSK | 14 March 2001 | |
| Prokop Stodola | SSK | 18 September 2002 | |
| Bart Swings | ROL/SSK | 12 February 1991 | |
| Sandrine Tas | CYC/ROL/SSK | 7 September 1995 | |
| Valentin Thiébault | SSK | 19 July 1998 | |
| Kristian Ulekleiv | SSK | 28 August 1996 | |
| Ragne Wiklund | SSK | 9 May 2000 |