Japan at the 2018 Summer Youth Olympics

Japan participated at the 2018 Summer Youth Olympics in Buenos Aires, Argentina from 6 October to 18 October 2018. Japan competes in 23 events and brought home 39 medals. It was the rehearsal of the hosting Summer Olympics as Tokyo was the host of the 2020 games which was held from 23 July to 8 August 2021.

Medalists

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Archery
Japan qualified two archers based on its performance at the 2017 World Archery Youth Championships.


 * Individual


 * Team

Athletics

 * Boys
 * Track & road events


 * Field Events


 * Girls
 * Track & road events

Cross Country
 * Field Events

Badminton
Japan qualified two players based on the Badminton Junior World Rankings.


 * Singles


 * Team

Cycling
Japan qualified a boys' and girls' combined team based on its ranking in the Youth Olympic Games Junior Nation Rankings. They also qualified a mixed BMX racing team based on its ranking in the Youth Olympic Games BMX Junior Nation Rankings and 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 racing team – 1 team of 2 athletes
 * Mixed BMX freestyle – 1 boy and 1 girl

Dancesport
Japan qualified two dancers based on its performance at the 2018 World Youth Breaking Championship.


 * B-Boys – Shigekix
 * B-Girls – Ram

Fencing
Japan qualified three athletes based on its performance at the 2018 Cadet World Championship.

Futsal

 * Girls
 * Summary
 * Group D


 * Semi-finals


 * Finals

Golf

 * Individual


 * Team

Artistic
Japan qualified two gymnasts based on its performance at the 2018 Asian Junior Championship.

Rhythmic
Japan qualified one gymnast based on its performance at the 2018 Asian Junior Championship.


 * Individual

Trampoline
Japan qualified two gymnasts based on its performance at the 2018 Asian Junior Championship.


 * Boys' trampoline – 1 quota
 * Girls' trampoline – 1 quota

Karate
Japan qualified three athlete based on the rankings in the Buenos Aires 2018 Olympic Standings. Later, they qualified three more athletes based on its performance at one of the Karate Qualification Tournaments.

Rowing
Japan qualified one boat based on its performance at the 2018 Asian Youth Olympic Games Qualification Regatta.


 * Boys' single sculls – 1 athlete

Boys' tournament

 * Summary


 * Group Stage


 * Bronze medal match

Sailing
Japan qualified one boat based on its performance at the 2018 Singapore Open (Asian Techno 293+ Qualifiers).


 * Boys' Techno 293+ – 1 boat

Shooting

 * Girls Rifle – Aoi Takagi


 * Individual


 * Team

Sport climbing
Japan qualified two sport climbers based on its performance at the 2017 World Youth Sport Climbing Championships. They also qualified a female climber based on its performance at the 2017 Asian Youth Sport Climbing Championships.


 * Boys' combined – 2 quotas (Keita Dohi, Shuta Tanaka)
 * Girls' combined – 1 quota (Mao Nakamura)

Swimming

 * Boys


 * Girls


 * Mixed
 * Swimmers who participated in the heats only.
 * Swimmers who participated in the heats only and received medals.

Table tennis
Japan qualified two table tennis players based on its performance at the Asian Continental Qualifier.


 * Boys' singles – Tomokazu Harimoto
 * Girls' singles – Miu Hirano

Triathlon
Japan qualified two athletes based on its performance at the 2018 Asian Youth Olympic Games Qualifier.


 * Individual


 * Relay

Weightlifting
Japan qualified one athlete based on its performance at the 2018 Asian Youth Championships.

Wrestling

 * Boys


 * Girls