| Athlete | Country | Sports | Date of birth |
|---|---|---|---|
| Anna Aballay | BHA | 11 November 2002 | |
| Sofía Abarca | SWA | 4 January 2003 | |
| Néider Abello | ATH | 28 June 2002 | |
| Neiker Abello | ATH | 30 March 2000 | |
| Katelyn Abeln | SHO | 9 April 2001 | |
| Isabel Aburto | CAN | 23 August 2002 | |
| Carlos Acevedo | ARC | 11 December 2004 | |
| Sofía Acevedo | BK3/BAS | 30 April 2001 | |
| Yareli Acevedo | CYC | 29 July 2001 | |
| Asa Acosta | BK3 | 29 October 1998 | |
| Zoe Acosta | ROC/ROW | 31 October 2002 | |
| Fátima Acuña | BHA/HAN | 14 August 1999 | |
| José Acuña | TKW | 25 October 2002 | |
| Laura Acuña | ATH | 27 January 2002 | |
| Liliana Acuña | BHA | 28 February 2000 | |
| Anabella Acurero | FEN | 9 November 2001 | |
| Rodrigo Aedo | BHA/HAN | 7 May 2000 | |
| Camila Agudelo | SWI | 23 April 2004 | |
| Mariana Aguilar | SAI | 12 March 1999 | |
| Allison Aguilera | SHO | 8 May 2004 | |
| Emiliano Aguilera | TEN | 2 November 2003 | |
| Francisco Aguilera | BHA | 7 March 2001 | |
| Santiago Aguilera | SWI | 8 April 2000 | |
| Isaias Aguirre | BVO/VOL | 20 August 2002 | |
| Maribel Aguirre | CYC | 15 May 1999 | |
| Sebastián Aguirre | SWI | 11 August 2001 | |
| Tomás Aguirre | CYC | 23 October 2001 | |
| Francisco Ahumada | BHA/HAN | 19 July 2001 | |
| Ynela Aires | ROW | 13 May 2001 | |
| Belén Aizen | BHA | 18 August 2000 | |
| Carlos Ajete | ROW | 24 June 1999 | |
| Alondra Alarcón | VOL | 24 September 2004 | |
| Edward Alarcón | GYM | 29 July 2003 | |
| Esperanza Albarrán | BVO | 10 October 2000 | |
| Nicolás Albornoz | ROL | 15 April 2004 | |
| María Alborzen | SWI | 21 February 2003 | |
| Ismael Alcántara | BBL | 25 September 1998 | |
| Victor Alcará | SWI | 28 September 2000 | |
| Kyle Alcine | ATH | 29 June 1999 | |
| Diana Alecrim | VOL | 22 February 1999 | |
| Guilherme Alexandre | VOL | 18 March 2002 | |
| Maria Alexandre | RGY | 15 May 2007 | |
| Yan Algudin | WRE | 2 April 2002 | |
| Trinity Allen | KTE | 22 February 2001 | |
| Leandro Allende | BK3 | 4 August 1998 | |
| Ali Almajdi | BOX | 8 November 2003 | |
| Caio Almeida | SHO | 20 March 2004 | |
| Liranyi Alonso | ATH | 28 December 2005 | |
| Luana Alonso | SWI | 19 March 2004 | |
| José Altamiranda | BBL | 4 June 1999 | |
| Lili Alvarado | KTE | 16 November 2001 | |
| Alyansel Álvarez | BBL | 14 August 1998 | |
| Anahí Álvarez | ATH/TRI | 11 August 2001 | |
| Anyel Álvarez | ATH | 25 February 2000 | |
| Frank Álvarez | BBL | 16 January 1999 | |
| Juliánnys Álvarez | BOX | 14 August 2004 | |
| María Álvarez | TKW | 7 April 2001 | |
| Melvy Álvarez | TKW | 15 August 2002 | |
| Roberto Álvarez | BBL | 19 May 1998 | |
| Ronny Álvarez | BOX | 29 June 2004 | |
| Ricardo Amador | FEN | 23 December 2001 | |
| Yara Amador | ATH | 20 June 2001 | |
| Nya Anays | CYC | 11 June 2003 | |
| Yadhira Anchante | VOL | 19 November 2002 | |
| Mary Luz Andia | ATH | 9 November 2000 | |
| Hermann Andriano | BAS | 19 July 2000 | |
| María Añez | TKW | 21 January 2004 | |
| Dina Anguiano | SQU | 14 August 2001 | |
| Juleisy Ángulo | ATH | 2 January 2001 | |
| Katriel Ángulo | ATH | 23 January 2002 | |
| Verónica Aranda | SWA | 22 May 2003 | |
| Kiara Arango | JUD | 4 January 2001 | |
| Reinner Arango | WLT | 24 March 2004 | |
| Darwin Araujo | WRE | 24 September 2001 | |
| Rebeca Araujo | BHA | 21 May 2002 | |
| Noé Aravena | BVO/VOL | 30 July 2002 | |
| Gabriel Araya | SWI | 7 April 1999 | |
| Anderson Arboleda | CYC | 5 July 2001 | |
| Marla Arellano | SWA | 28 February 2002 | |
| Juan Arenas | CYC | 9 July 1999 | |
| Valentina Argoti | SWA | 8 December 2002 | |
| Valeria Argoti | SWA | 8 December 2002 | |
| Julio Arias | FEN | 12 October 2001 | |
| María Arias | ROL | 25 May 2001 | |
| Franco Arismendi | JUD | 6 May 2003 | |
| Lilian Armenta | ROW | 16 April 2000 | |
| Marcela Arounian | BHA/HAN | 7 January 2000 | |
| Cristian Arriagada | CYC | 2 November 2002 | |
| Carlos Arroyo | BBL | 11 July 2001 | |
| Julieta Aruga | VOL | 1 October 2004 | |
| Gloria Asca | WRE | 2 July 2002 | |
| Nayenne Ashenaffi | RGY | 21 September 2006 | |
| César Astorga | BOX | 31 October 2003 | |
| Gustavo Ávalos | ROC/ROW | 19 January 1999 | |
| Luis Avilés | ATH | 3 March 2002 | |
| Jeremías Azaña | SQU | 28 July 2000 | |
| Sol Azcune | BHA | 24 February 2000 | |
| Victor Baganha | SWI | 13 September 2002 | |
| Yamila Baggio | BHA/HAN | 2 September 2000 | |
| Gabriela Bahamonde | ROW | 26 December 2003 | |
| Stephanie Balduccini | SWI | 20 September 2004 | |
| Yiselena Ballar | ATH | 12 January 2003 | |
| Julius Ballo | BOX | 20 April 2003 | |
| Samantha Baños | SWI | 27 August 2004 | |
| Danna Barajas | ATH | 17 February 1999 | |
| Martina Barbeito | SWI | 20 June 2001 | |
| Deyse Barbosa | SWI | 15 March 2004 | |
| Gabriela Barbosa | GYM | 8 December 2007 | |
| Mariangel Barbosa | SBL | 13 September 2003 | |
| Clío Bárcenas | TTN | 17 June 2002 | |
| Clara Barinas | JUD | 22 June 2002 | |
| Khriszthihan Barrera | BOX | 10 March 2004 | |
| Miranda Barrera | SWA | 5 March 2002 | |
| Maitê Barreto | CYC | 29 February 2000 | |
| Valentina Barrios | ATH | 2 December 2003 | |
| Nicolás Barrón | KTE | 21 February 2003 | |
| Erick Barroso | WRE | 28 April 2002 | |
| Luara Bastos | BHA | 18 April 2002 | |
| Freuddy Batista | BBL | 12 December 1999 | |
| Ketiley Batista | ATH | 13 July 1999 | |
| Lucía Bautista | SQU | 6 December 2002 | |
| Jenifer Becerra | WLT | 31 December 2002 | |
| Valentina Becerra | SWI | 13 October 2001 | |
| Karen Bedoya | ATH | 29 May 2002 | |
| Yeferson Belalcazar | BOX | 26 January 2003 | |
| Daniel Bello | WRE | 7 February 2001 | |
| Pedro Bello | WRE | 16 April 2001 | |
| Agostina Beltramino | VOL | 25 April 1999 | |
| Pablo Benavides | KTE | 30 July 2000 | |
| Greili Bencosme | WRE | 10 January 2003 | |
| Samuel Bendek | SWI | 6 January 2004 | |
| Caterina Benedetti | BHA | 15 May 2000 | |
| Catriel Benítez | BHA | 2 March 2000 | |
| Gabriela Benítez | BHA | 12 June 2003 | |
| Maci Bergeron | SBL | 1 March 2004 | |
| Natalia Bernal | KTE | 16 August 2001 | |
| Karen Berrelleza | CAN | 4 September 2000 | |
| Carter Berrio | FEN | 1 November 2006 | |
| Jhon Berrío | ATH | 26 March 2002 | |
| Liober Betancourt | WRE | 7 March 2001 | |
| Kaylee Bishop | DIV | 11 July 2006 | |
| John Blanton | SHO | 12 July 2002 | |
| Hannah Blatt | SQU | 27 January 1999 | |
| Roberto Bonilla Flores | SWI | 16 August 2004 | |
| Arley Bonilla | WLT | 8 June 2002 | |
| Carolina Bono | BHA/HAN | 14 July 2000 | |
| Irene Borrego | WLT | 3 November 2001 | |
| Natalia Botello | FEN | 6 August 2002 | |
| Erika Botero | CYC | 7 January 2000 | |
| Nicolás Bouroncle | KTE | 17 August 2002 | |
| José Bracho | BK3/BAS | 19 November 1998 | |
| Marcos Braga | BHA | 26 June 2000 | |
| Catalina Bravo | ATH | 3 April 1999 | |
| Hiram Bravo | VOL | 19 December 1999 | |
| Kimy Bravo | JUD | 15 December 2002 | |
| Roxana Briceño | BOX | 29 January 2003 | |
| Chantoba Bright | ATH | 4 April 2000 | |
| María Briones | KTE | 28 November 2001 | |
| Franklin Brioso | BBL | 15 April 2000 | |
| Leyla Brítez | TEN | 4 November 2004 | |
| Elisa Brunel | SWA | 18 September 2004 | |
| Brayán Buelvas | BBL | 8 June 2002 | |
| María Buenaño | SQU | 25 October 2002 | |
| Gonzalo Bueno | TEN | 3 April 2004 | |
| Brianna Burgos | TTN | 4 May 2005 | |
| Joaquín Burgos | JUD | 23 January 2001 | |
| Nicolás Burgos | TTN | 17 December 2001 | |
| Pamela Burguete | RGY | 21 June 2007 | |
| Ignacio Buse | TEN | 25 March 2004 | |
| Daniela Bustamente | ROL | 30 April 2006 | |
| Georgina Buzzetti | BK3 | 27 March 2003 | |
| Fabiola Cabello | SQU | 16 August 2000 | |
| Valeria Cabezas | ATH | 16 January 2001 | |
| Jonathan Cabrera | VOL | 26 July 1999 | |
| Ana Luiza Caetano | ARC | 18 November 2002 | |
| Vida Caetano | ATH | 2 April 2001 | |
| Valerie Cagle | SBL | 7 January 2002 | |
| Juan Caicedo | KTE | 16 May 2002 | |
| Nicole Caicedo | ATH | 2 September 2000 | |
| María Calderón | TKW | 4 September 2001 | |
| Sebastián Calle | SWI | 26 October 2001 | |
| Cloe Callorda | ROW | 13 September 2005 | |
| Diego Camacho | SWI | 12 February 2003 | |
| Jair Camargo | BBL | 1 July 1999 | |
| Camila Camilo | BOX | 19 December 2003 | |
| Guillermo Campos | ATH | 5 July 2001 | |
| Josué Campos | WRE | 26 August 2001 | |
| Pamela Campos | KTE | 22 September 2000 | |
| Luis Cañabate | DIV | 4 October 2003 | |
| Tasha Cancela | JUD | 16 May 2002 | |
| Ana Candiotto | TEN | 19 April 2004 | |
| Uriel Canjura | BDM | 12 September 2000 | |
| Juliana Cano | KTE | 23 April 2002 | |
| Beder Cantu | WRE | 25 March 2002 | |
| Mauricio Canul | WLT | 28 September 2001 | |
| Pablo Capistrano | BOX | 26 July 2003 | |
| Roger Caraballo | BBL | 14 August 2001 | |
| Salomon Carballo | ROL | 7 January 2003 | |
| Leonel Cárdenas | SQU | 8 February 2000 | |
| Erik Cardoso | ATH | 3 March 2000 |