Argentina competed at the 2018 Summer Youth Olympics in Buenos Aires, Argentina from 6 October to 18 October 2018, as host nation.
Medalists
Medals awarded to participants of mixed-NOC teams are represented in italics. These medals are not counted towards the individual NOC medal tally.
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Competitors
Archery
Argentina qualified two athletes based on host nation.
Boys' Individual - 1 quota
Girls' Individual - 1 quota
Athletics
As hosts, Argentina was given four athlete quotas (2 boys and 2 girls) to compete in athletics.
Boys' events - 2 athletes
Girls' events - 2 athletes
But finally these 7 athletes, based on Panamerican rankings, are selected: Nazareno Sassia (SP), Pablo Zaffaroni (PV), Gustavo Agustín Osorio (JT), Pedro Garrido (400 m hs), Julio Nobile (HT), Luciano Méndez (TJ) and Lázaro Bonora (DT), only boys.
Boys
Track and road events
Field events
Badminton
As hosts, Argentina was given a spot to compete in the boys' and girls' singles events. Argentina only sent 1 boy.
Singles
Team
Basketball
As hosts, Argentina is given a spot to compete in both the boys' and girls' tournaments.
Boys' Tournament - 1 team of 4 athletes
Girls' Tournament - 1 team of 4 athletes
Shoot-out contest
Dunk contest
Beach handball
As hosts, Argentina were given a spot to compete in the boys' and girls' tournament.
Beach volleyball
As hosts, Argentina was given a spot to compete in the boys' and girls' tournaments.
Boys' Tournament - 1 team of 2 athletes
Girls' Tournament - 1 team of 2 athletes
Boxing
As hosts, Argentina was given quotas to compete in two boys' and one girls' events.
Boys
Girls
Canoeing
Argentina entered three boats based on its performance at the 2018 World Qualification Event.
Boys' C1 - 1 boat
Boys' K1 - 1 boat
Girls' K1 - 1 boat
Boys
Girls
Cycling
As hosts, Argentina was given spots to compete in the boys' and girls' combined team events and in the mixed BMX racing team event. However they declined to compete in BMX racing. They later qualified two athletes in BMX freestyle based on its performance at the 2018 Urban Cycling World Championship.
Boys' combined team - 1 team of 2 athletes
Girls' combined team - 1 team of 2 athletes
Mixed BMX freestyle - 1 boy and 1 girl
Mixed BMX freestyle park
Combined team
Dancesport
As hosts, Argentina was given two quotas to compete in dancesport.
B-Boys - Broly
B-Girls - Vale
Equestrian
As hosts, Argentina was given a quota to compete.
Individual Jumping - 1 athlete
Fencing
As hosts, Argentina was given quotas to compete in all weapons.
Boys' Épée - 1 quota
Boys' Foil - 1 quota (not used) Boys' Sabre - 1 quota Girls' Épée - 1 quota (not used) Girls' Foil - 1 quota (not used) Girls' Sabre - 1 quota (not used)
Boys
Field hockey
As hosts, Argentina was given a spot to compete in both tournaments.
Boys' tournament - 1 team of 9 athletes
Girls' tournament - 1 team of 9 athletes
Boys' tournament
Roster
Agustín Cabaña
Gaspár Garrone
Nehuén Hernando
Ignacio Ibarra
Tadeo Marcucci
Santiago Micaz
Facundo Sarto
Lisandro Zago
Facundo Zárate
Preliminary round
Quarterfinals
Semifinals
Bronze medal game
Girls' tournament
Roster
Brisa Bruggesser
María Cerundolo
Celina di Santo
Azul Iritxity
Victoria Miranda
Gianella Palet
Lourdes Pérez
Sofía Ramallo
Josefina Rubenacker
Preliminary round
Quarterfinals
Semifinals
Gold medal game
Futsal
As hosts, Argentina can compete in either the boys' or girls' tournament.
1 team of 10 athletes
Boys' tournament
Roster
Matías Coronel
Alan de Candia
Facundo Gassmann
Joaquín Hernández
Franco Pezzenati
Agustín Raggiati
Ezequiel Ramírez
Santiago Rufino
Nahuel Urriza
Christian Vargas
Group stage
Semifinals
Bronze medal match
Golf
As hosts, Argentina was given a quota to compete in the men's and women's events.