| Athlete | Country | Sports | Date of birth |
|---|---|---|---|
| Hatice Açıkgöz | WLT | 1 January 2001 | |
| Ara Aghanyan | WLT | 25 May 2000 | |
| Alice Aitchison | WLT | 1 May 1999 | |
| Alexandra Alexe | WLT | 20 April 2000 | |
| Duygu Alıcı | WLT | 14 January 2001 | |
| Victor Anici | WLT | 10 April 1999 | |
| Kakhi Asanidze | WLT | 1 October 2000 | |
| Sonja Bjelić | WLT | 17 July 1999 | |
| Krystyna Borodina | WLT | 19 August 1999 | |
| Despoina Charitopoulou | WLT | 29 June 1999 | |
| Irakli Chkheidze | WLT | 5 January 1999 | |
| Natalia Chołuj | WLT | 3 June 2001 | |
| Lara Dancz | WLT | 3 June 2000 | |
| Bianca Dumitrescu | WLT | 16 June 2000 | |
| Laurène Fauvel | WLT | 21 May 1999 | |
| Cristiano Ficco | WLT | 5 April 2001 | |
| Sarah Fischer | WLT | 9 November 2000 | |
| Raphael Friedrich | WLT | 25 January 2001 | |
| Sofia Georgopoulou | WLT | 22 September 2000 | |
| Caroline Gernsøe | WLT | 6 May 1999 | |
| Irakli Gobejishvili | WLT | 10 October 2000 | |
| Vicky Graillot | WLT | 2 July 2000 | |
| Melisa Güneş | WLT | 16 April 2001 | |
| Roberto Gutu | WLT | 27 July 2000 | |
| Mariya Hanhur | WLT | 24 August 2000 | |
| Oleh Hanzenko | WLT | 10 December 1999 | |
| Szilárd Holló | WLT | 7 March 2000 | |
| Hugo Hultvall | WLT | 3 October 2001 | |
| Valentin Iancu | WLT | 16 January 2000 | |
| Giulia Imperio | WLT | 7 December 2001 | |
| Marcin Izdebski | WLT | 6 March 1999 | |
| Simona Jeřábková | WLT | 29 September 2000 | |
| Catrin Jones | WLT | 13 June 1999 | |
| Ramazan Kara | WLT | 19 June 1999 | |
| Marek Komorowski | WLT | 23 March 1999 | |
| Dmytro Kondratiuk | WLT | 19 June 2001 | |
| Kamila Konotop | WLT | 23 March 2001 | |
| Piotr Kudłaszyk | WLT | 29 May 1999 | |
| Varazdat Lalayan | WLT | 1 May 1999 | |
| Nuray Levent | WLT | 8 May 2000 | |
| Zaza Lomtadze | WLT | 12 June 2001 | |
| Nikki Löwik | WLT | 30 January 2001 | |
| Cristian Luca | WLT | 16 February 1999 | |
| Erik Ludwig | WLT | 19 March 2001 | |
| Lucrezia Magistris | WLT | 21 April 1999 | |
| Vardan Manukyan | WLT | 27 August 1999 | |
| Armands Mežinskis | WLT | 8 September 2000 | |
| Yasha Minasyan | WLT | 17 September 2001 | |
| Veronika Mitykó | WLT | 26 July 2000 | |
| Marinela Moroşan | WLT | 16 August 2001 | |
| Christopher Murray | WLT | 5 February 1999 | |
| Dian Pampordzhiev | WLT | 14 December 1999 | |
| Cosmina Pană | WLT | 18 December 2001 | |
| Olaf Pasikowski | WLT | 19 July 2001 | |
| František Polák | WLT | 1 July 2001 | |
| Arjeta Rade | WLT | 25 October 1999 | |
| Marin Robu | WLT | 19 March 2000 | |
| Angel Rusev | WLT | 13 July 2001 | |
| Isa Rustamov | WLT | 6 November 1999 | |
| Luiza Sahradyan | WLT | 18 July 2001 | |
| Patryk Sawulski | WLT | 19 November 2001 | |
| Jutta Selin | WLT | 1 June 1999 | |
| Nikola Seničová | WLT | 27 May 2000 | |
| Olga Shapiro | WLT | 19 May 1999 | |
| Eygló Fanndal Sturludóttir | WLT | 25 June 2001 | |
| Akaki Talakhadze | WLT | 29 July 2001 | |
| Ján Trebichavský | WLT | 15 January 1999 | |
| Stevan Vladisavljev | WLT | 4 July 1999 | |
| Arnošt Vogel | WLT | 17 February 2000 | |
| Wiktoria Wołk | WLT | 10 March 2001 | |
| Yevheniy Yantsevich | WLT | 26 September 2000 | |
| Radmila Zagorac | WLT | 24 January 2001 | |
| Agnieszka Zimroz | WLT | 4 May 2001 |