| Athlete | Country | Sports | Date of birth |
|---|---|---|---|
| Champion Allison | ATH | 5 November 1998 | |
| Deniz Almas | ATH | 17 July 1997 | |
| Jhonatan Amores | ATH | 29 August 1998 | |
| Adanech Anbesa Feyisa | ATH | 23 January 1998 | |
| Maksim Andraloits | ATH | 17 June 1997 | |
| Georgiana Anitei | ATH | 26 March 1999 | |
| Christina Aragon | ATH | 17 June 1997 | |
| Sean Bailey | ATH | 15 July 1997 | |
| Selemon Barega | ATH | 20 January 2000 | |
| Thomas Barthel | ATH | 6 October 1998 | |
| Johanna Bechthold | ATH | 14 January 1997 | |
| Agrie Belachew | ATH | 20 January 1999 | |
| Yehualeye Beletew | ATH | 31 July 1998 | |
| Taylor Bennett | ATH | 15 January 1997 | |
| Ashlan Best | ATH | 11 February 1999 | |
| Kipyegon Bett | ATH | 1 February 1998 | |
| Junelle Bromfield | ATH | 8 February 1998 | |
| Mario Burke | ATH | 18 March 1997 | |
| Rushelle Burton | ATH | 4 December 1997 | |
| Chantal Butzek | ATH | 25 February 1997 | |
| Darius Carbin | ATH | 4 March 1998 | |
| Anthony Carpenter | ATH | 23 January 1999 | |
| Chen Ting | ATH | 26 August 1997 | |
| Emmaculate Chepkirui | ATH | 3 August 2000 | |
| Celliphine Chepteek Chespol | ATH | 23 March 1999 | |
| Neeraj Chopra | ATH | 24 December 1997 | |
| Anna Cockrell | ATH | 28 August 1997 | |
| Ari Cogdell | ATH | 17 May 1997 | |
| Yanis David | ATH | 12 December 1997 | |
| Beyenu Degefa | ATH | 12 July 1999 | |
| Jamal Abdi Dirieh | ATH | 1 January 1997 | |
| Mondo Duplantis | ATH | 10 November 1999 | |
| Eda Tuğsuz | ATH | 27 March 1997 | |
| Manuel Eitel | ATH | 28 January 1997 | |
| Nigel Ellis | ATH | 8 August 1997 | |
| Alexandra Emilianov | ATH | 19 September 1999 | |
| Johannes Erm | ATH | 26 March 1998 | |
| Ximena Esquivel | ATH | 22 August 1997 | |
| Katrin Fehm | ATH | 16 April 1998 | |
| Kalkidan Fentie | ATH | 9 May 1998 | |
| Aykeeme Francis | ATH | 8 October 1997 | |
| Eleni Frommann | ATH | 27 April 1997 | |
| Takumu Furuya | ATH | 12 March 1997 | |
| Tigest Getent | ATH | 7 July 1997 | |
| Niels Giese | ATH | 29 March 1998 | |
| Dalila Abdulkadir Gosa | ATH | 27 June 1998 | |
| Johan Grobler | ATH | 6 August 1997 | |
| Roger Gurski | ATH | 11 July 1997 | |
| Yemane Haileselassie | ATH | 21 February 1998 | |
| Bence Halász | ATH | 4 August 1997 | |
| Mahamat Alamine Hamdi | ATH | 15 April 1997 | |
| Abdalelah Haroun | ATH | 1 January 1997 | |
| Kaylor Harris | ATH | 31 October 1998 | |
| Elvira Herman | ATH | 9 January 1997 | |
| Candace Hill | ATH | 11 February 1999 | |
| Michaela Hrubá | ATH | 21 February 1998 | |
| Alex Hulley | ATH | 24 July 1997 | |
| Jaheel Hyde | ATH | 2 February 1997 | |
| Moaaz Ibrahim | ATH | 8 February 1999 | |
| Wataru Inuzuka | ATH | 8 July 1997 | |
| Lynna Irby-Jackson | ATH | 6 December 1998 | |
| Tiffany James | ATH | 31 January 1997 | |
| Aleksi Johannes | ATH | 17 November 1997 | |
| Tia Jones | ATH | 8 September 2000 | |
| Shannon Kalawan | ATH | 25 November 1997 | |
| Niklas Kaul | ATH | 11 February 1998 | |
| Alina Kenzel | ATH | 10 August 1997 | |
| Tigist Ketema | ATH | 15 September 1998 | |
| Aron Kifle | ATH | 20 February 1998 | |
| Jacob Kiplimo | ATH | 14 November 2000 | |
| Anthony Kiptoo | ATH | 19 August 1997 | |
| Amos Kirui | ATH | 9 February 1998 | |
| Konstanze Klosterhalfen | ATH | 18 February 1997 | |
| Salih Korkmaz | ATH | 14 April 1997 | |
| Suvi Koskinen | ATH | 24 April 1997 | |
| Hilary Kpatcha | ATH | 5 May 1998 | |
| Marcus Krah | ATH | 30 October 1997 | |
| Keshia Kwadwo | ATH | 10 July 1999 | |
| Rodgers Kwemoi | ATH | 3 March 1998 | |
| Sarah Lagger | ATH | 3 September 1999 | |
| Amere Lattin | ATH | 12 July 1997 | |
| Wesley Ledama | ATH | 2 July 1999 | |
| Cynthia Leduc | ATH | 16 February 1997 | |
| Gift Leotlela | ATH | 12 May 1998 | |
| Yuliya Levchenko | ATH | 28 November 1997 | |
| Beatrice Nedberge Llano | ATH | 14 December 1997 | |
| Wilbert London | ATH | 17 August 1997 | |
| Noah Lyles | ATH | 18 July 1997 | |
| Ma Zhenxia | ATH | 1 August 1998 | |
| Kurtis Marschall | ATH | 25 April 1997 | |
| Lázaro Martínez | ATH | 3 November 1997 | |
| Klaudia Maruszewska | ATH | 28 August 1997 | |
| Maykel Massó | ATH | 8 May 1999 | |
| Hanne Maudens | ATH | 12 March 1997 | |
| Natassha McDonald | ATH | 27 January 1997 | |
| Roneisha McGregor | ATH | 9 October 1997 | |
| Taylor McLaughlin | ATH | 3 August 1997 | |
| Kyron McMaster | ATH | 3 January 1997 | |
| Aaliyah Miller | ATH | 28 August 1998 | |
| Hakim Montgomery | ATH | 23 June 1997 | |
| Kahmari Montgomery | ATH | 16 August 1997 | |
| Angelica Moser | ATH | 9 October 1997 | |
| Tamara Murcia | ATH | 30 October 1998 | |
| Wilma Murto | ATH | 11 June 1998 | |
| Cristian Nápoles | ATH | 27 November 1998 | |
| Michael Norman | ATH | 3 December 1997 | |
| Edidiong Odiong | ATH | 13 March 1997 | |
| Bronson Osborn | ATH | 5 July 1998 | |
| Kenta Oshima | ATH | 3 September 1997 | |
| Robeilys Peinado | ATH | 26 November 1997 | |
| Fanny Peltier | ATH | 25 May 1997 | |
| Anderson Peters | ATH | 21 October 1997 | |
| Wictor Petersson | ATH | 1 May 1998 | |
| Hlib Piskunov | ATH | 25 November 1998 | |
| Omphemetse Poo | ATH | 23 August 1997 | |
| Estelle Raffai | ATH | 6 February 1998 | |
| Melvin Raffin | ATH | 9 August 1998 | |
| Kristina Rakočević | ATH | 13 June 1998 | |
| Bontu Rebitu | ATH | 12 December 1997 | |
| Syaira Richardson | ATH | 29 October 1998 | |
| Evelyn Rivera | ATH | 3 December 1997 | |
| Adriana Rodríguez | ATH | 12 July 1999 | |
| Konstantina Romaiou | ATH | 30 May 1997 | |
| Darcy Roper | ATH | 31 March 1998 | |
| Xahria Santiago | ATH | 9 October 1999 | |
| Jazz Shukla | ATH | 24 August 1998 | |
| Karabo Sibanda | ATH | 2 July 1998 | |
| Mostafa Smaili | ATH | 9 January 1997 | |
| Song Jiayuan | ATH | 15 September 1997 | |
| Khalifa St. Fort | ATH | 13 February 1998 | |
| Oskar Stachnik | ATH | 1 March 1998 | |
| Noemi Stella | ATH | 2 February 1997 | |
| Ewa Swoboda | ATH | 26 July 1997 | |
| Victoria Tachinski | ATH | 15 June 1999 | |
| Ippei Takeda | ATH | 13 March 1997 | |
| Kumari Taki | ATH | 6 May 1999 | |
| Xholani Talane | ATH | 25 September 1997 | |
| Willy Kiplimo Tarbei | ATH | 30 March 1998 | |
| Brandon Taylor | ATH | 24 June 1998 | |
| Christopher Taylor | ATH | 1 October 1999 | |
| Miltiadis Tentoglou | ATH | 18 March 1998 | |
| Baboloki Thebe | ATH | 18 March 1997 | |
| Terry Thomas | ATH | 1 May 1997 | |
| Andrei Toader | ATH | 26 May 1997 | |
| Taresa Tolosa | ATH | 15 June 1998 | |
| Filippo Tortu | ATH | 15 June 1998 | |
| Jo-Ané van Dyk | ATH | 3 October 1997 | |
| Deakin Volz | ATH | 6 May 1997 | |
| Getnet Wale | ATH | 16 July 2000 | |
| Hannah Waller | ATH | 22 June 1998 | |
| Sammy Watson | ATH | 10 November 1999 | |
| Sophie Weißenberg | ATH | 24 September 1997 | |
| Callum Wilkinson | ATH | 14 March 1997 | |
| Kirsty Williams | ATH | 13 January 1997 | |
| Stacey-Ann Williams | ATH | 8 March 1999 | |
| Alyssa Wilson | ATH | 20 February 1999 | |
| Karrington Winters | ATH | 14 April 1997 | |
| Fantu Worku | ATH | 29 March 1999 | |
| Jun Yamashita | ATH | 23 August 1997 | |
| Luis Enrique Zayas | ATH | 7 June 1997 | |
| Hleb Zhuk | ATH | 24 March 1998 |