# Japan at the 2014 Summer Youth Olympics

Japan competed at the 2014 Summer Youth Olympics, in Nanjing, China from 16 August to 28 August 2014.

## Medalists

| Medal | Name | Sport | Event | Date |
| Gold | Hifumi Abe | Judo | Boys' 66 kg | 17 Aug |
| Gold | Ippei Watanabe | Swimming | Boys' 200 m breaststroke | 20 Aug |
| Gold | Minoru Onogawa | Athletics | Boys' 10 km walk | 24 Aug |
| Gold | Nozomi Musembi Takamatsu | Athletics | Girls' 3,000 m | 24 Aug |
| Gold | Kenya Yuasa | Gymnastics | Boys' Horizontal Bar | 24 Aug |
| Gold | Mayu Mukaida | Wrestling | Girls' freestyle 52 kg | 26 Aug |
| Gold | Yajyuro Yamasaki | Wrestling | Boys' freestyle 76 kg | 27 Aug |
| Silver | Karin Miyawaki | Fencing | Girls' Foil | 17 Aug |
| Silver | Yuto Muramatsu | Table tennis | Boys' singles | 20 Aug |
| Silver | Rana Nakano | Gymnastics | Girls' trampoline | 21 Aug |
| Silver | Akane Yamaguchi | Badminton | Girls' singles | 22 Aug |
| Silver | Kenta Oshima | Athletics | Boys' 100 m | 23 Aug |
| Silver | Yuji Hiramatsu | Athletics | Boys' high jump | 23 Aug |
| Silver | Kenya Yuasa | Gymnastics | Boys' Floor | 23 Aug |
| Silver | Miyu Kato Yuto Muramatsu | Table tennis | Mixed team | 23 Aug |
| Silver | Toshihiro Suzuki | Boxing | Boys' 64 kg | 27 Aug |
| Bronze | Honoka Yamauchi | Judo | Girls' 44 kg | 17 Aug |
| Bronze | Sae Miyakawa | Gymnastics | Girls' vault | 23 Aug |
| Bronze | Ryotaro Matsumura Jumpei Yamasaki | Tennis | Boys' doubles | 23 Aug |
| Bronze | Nagisa Mori | Athletics | Girls' javelin throw | 25 Aug |
| Bronze | Subaru Murata | Boxing | Boys' 49 kg | 25 Aug |
Medals by sport :
| Sport | | | | Total |
| Athletics | 2 | 2 | 1 | 5 |
| Wrestling | 2 | 0 | 0 | 2 |
| Gymnastics | 1 | 2 | 1 | 4 |
| Judo | 1 | 0 | 1 | 2 |
| Swimming | 1 | 0 | 0 | 1 |
| Table tennis | 0 | 2 | 0 | 2 |
| Boxing | 0 | 1 | 1 | 2 |
| Badminton | 0 | 1 | 0 | 1 |
| Fencing | 0 | 1 | 0 | 1 |
| Tennis | 0 | 0 | 1 | 1 |
| Total | 7 | 9 | 5 | 21 |
Medals by day :
| Day | | | | Total |
| August 17 | 1 | 1 | 1 | 3 |
| August 18 | 0 | 0 | 0 | 0 |
| August 19 | 0 | 0 | 0 | 0 |
| August 20 | 1 | 1 | 0 | 2 |
| August 21 | 0 | 1 | 0 | 1 |
| August 22 | 0 | 1 | 0 | 1 |
| August 23 | 0 | 4 | 2 | 6 |
| August 24 | 3 | 0 | 0 | 3 |
| August 25 | 0 | 0 | 2 | 2 |
| August 26 | 1 | 0 | 0 | 1 |
| August 27 | 1 | 1 | 0 | 2 |
| Total | 7 | 9 | 5 | 21 |

## Archery

Japan qualified a two archers from its performance at the 2013 World Archery Youth Championships.

### Individual

| Athlete | Event | Ranking round | Ranking round | Round of 32 | Round of 16 | Quarterfinals | Semifinals | Final / BM | Rank |
| Athlete | Event | Score | Seed | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Rank |
| Hiroki Muto | Boys' Individual | 674 | 10 | Komar (UKR) W 6–4 | Mayr (GER) W 7–1 | Verma (IND) L 2–6 | did not advance | did not advance | 6 |
| Miasa Koike | Girls' Individual | 618 | 22 | Gotuaco (PHI) W 6–2 | Oleksiuk (UKR) W 6–5 | Li (CHN) L 0–6 | did not advance | did not advance | 8 |

### Team

| Athletes | Event | Ranking round | Ranking round | Round of 32 | Round of 16 | Quarterfinals | Semifinals | Final / BM | Rank |
| Athletes | Event | Score | Seed | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Rank |
| Sughrakhanim Mugabilzada (AZE) Hiroki Muto (JPN) | Mixed Team | 1292 | 1 | Zinsou (BEN) Lee (KOR) W 6–2 | Rivera (MEX) Koenig (FRA) W 5–4 | Li (CHN) Moreno (PHI) L 1–5 | did not advance | did not advance | 8 |
| Miasa Koike (JPN) Bradley Denny (GBR) | Mixed Team | 1288 | 10 | Marin (ESP) El Ghrari (LBA) W 5–4 | Machado (BRA) Szafran (POL) W 6–2 | Freywald (GER) Zolkepeli (MAS) L 4–5 | did not advance | did not advance | 5 |

## Athletics

Japan qualified 13 athletes.
Qualification Legend: Q=Final A (medal); qB=Final B (non-medal); qC=Final C (non-medal); qD=Final D (non-medal); qE=Final E (non-medal)

### Track & road events

| Athlete | Event | Heats | Heats | Final | Final |
| Athlete | Event | Result | Rank | Result | Rank |
| Kenta Oshima | 100 m | 10.62 | 3 Q | 10.57 | |
| Jun Yamashita | 200 m | 21.11 PB | 4 Q | 21.62 | 6 |
| Nao Kanai | 110 m hurdles | 14.03 | 16 qC | 14.08 | 13 |
| Minoru Onogawa | 10 km walk | — | — | 42:03.64 PB | |

### Field Events

| Athlete | Event | Qualification | Qualification | Final | Final |
| Athlete | Event | Distance | Rank | Distance | Rank |
| Yuji Hiramatsu | High jump | 2.10 | 4 Q | 2.14 PB | |
| Yume Ando | Discus throw | 55.87 | 6 Q | 57.36 | 4 |

### Track & road events

| Athlete | Event | Heats | Heats | Final | Final |
| Athlete | Event | Result | Rank | Result | Rank |
| Tomomi Kawamura | 200 m | 25.10 | 12 qB | 25.18 | 13 |
| Hina Takahashi | 800 m | 2:09.59 | 7 Q | 2:09.96 | 8 |
| Nozomi Musembi Takamatsu | 3000 m | 9:08.01 | 4 Q | 9:01.58 | |
| Nana Fujimori | 100 m hurdles | 13.83 | 9 qB | DSQ | DSQ |
| Sayori Matsumoto | 5 km walk | — | — | 23:54.71 | 4 |

### Field events

| Athlete | Event | Qualification | Qualification | Final | Final |
| Athlete | Event | Distance | Rank | Distance | Rank |
| Misaki Morota | Pole vault | 3.40 | 11 qB | 3.50 | 11 |
| Nagisa Mori | Javelin throw | 50.72 PB | 5 Q | 52.27 PB | |

## Badminton

Japan qualified two athletes based on the 2 May 2014 BWF Junior World Rankings.

### Singles

| Athlete | Event | Group stage | Group stage | Group stage | Group stage | Quarterfinal | Semifinal | Final / BM | Rank |
| Athlete | Event | Opposition Score | Opposition Score | Opposition Score | Rank | Opposition Score | Opposition Score | Opposition Score | Rank |
| Kanta Tsuneyama | Boys' Singles | Mihigo (UGA) W 2–0 (21–3, 21–5) | Jakowczuk (POL) W 2–0 (21–12, 21–10) | Penalver (ESP) W 2–0 (21–7, 21–17) | 1 | Ginting (INA) L 1–2 (8–21, 21–14, 12–21) | did not advance | did not advance | did not advance |
| Akane Yamaguchi | Girls' Singles | Cadeau (SEY) W 2–0 (21–2, 21–1) | Hendahewa (SRI) W 2–0 (21–13, 21–6) | Blichfeldt (DEN) W 2–0 (21–12, 22–20) | 1 | Hartawan (INA) W 2–1 (21–6, 18–21, 21–11) | Lee (TPE) W 2–1 (21–11, 18–21, 21–15) | He (CHN) L 1–2 (24–22, 21–23, 17–21) | |

### Doubles

| Athlete | Event | Group stage | Group stage | Group stage | Group stage | Quarterfinal | Semifinal | Final / BM | Rank |
| Athlete | Event | Opposition Score | Opposition Score | Opposition Score | Rank | Opposition Score | Opposition Score | Opposition Score | Rank |
| Lee Chia-hsin (TPE) Kanta Tsuneyama (JPN) | Mixed Doubles | Lee (HKG) Konieczna (POL) W 2–1 (15–21, 21–8, 21–15) | Jakowczuk (POL) Azurmendi (ESP) W 2–0 (21–10, 21–10) | Dhami (NEP) Ongbumrungpan (THA) W 2–0 (21–8, 21–13) | 1 | Shi (CHN) Lai (AUS) W 2–0 (21–18, 21–9) | Angodavidanalage (SRI) He (CHN) W 2–1 (21–14, 7–21, 21–19) | Cheam (MAS) Ng (HKG) L 0–2 (14–21, 21–23) | |
| Akane Yamaguchi (JPN) Ruslan Sarsekenov (UKR) | Mixed Doubles | Joshi (IND) Kabelo (BOT) W 2–0 (21–17, 21–19) | Abdelhakim (EGY) Mitsova (BUL) W 2–0 (21–13, 21–16) | Krapez (SLO) Chen (NED) L 0–2 (19–21, 17–21) | 2 | did not advance | did not advance | did not advance | did not advance |

## Boxing

Japan qualified three boxers based on its performance at the 2014 AIBA Youth World Championships

### Boys

| Athlete | Event | Preliminaries | Semifinals | Final / RM | Rank |
| Athlete | Event | Opposition Result | Opposition Result | Opposition Result | Rank |
| Subaru Murata | -49 kg | Bye | Latipov (UZB) L 1–2 | Bronze Medal Bout  Aikhynbay (KAZ) W 2–1 | |
| Goh Hosaka | -60 kg | Bye | Limonta (CUB) L 0–3 | Bronze Medal Bout  Könnyű (HUN) L 0–3 | 4 |
| Toshihiro Suzuki | -64 kg | Bye | Tumenov (RUS) W DISQ | Arecchia (ITA) L w/o | |

## Canoeing

Japan qualified one boat based on its performance at the 2013 World Junior Canoe Sprint and Slalom Championships.

### Girls

| Athlete | Event | Qualification | Qualification | Repechage | Repechage | Round of 16 | Round of 16 | Quarterfinals | Semifinals | Final / BM | Rank |
| Athlete | Event | Time | Rank | Time | Rank | Time | Rank | Opposition Result | Opposition Result | Opposition Result | Rank |
| Wakana Moriyama | K1 slalom | | | | | | | | | | |
| Wakana Moriyama | K1 sprint | | | | | | | | | | |

## Cycling

Japan qualified a boys' and girls' team based on its ranking issued by the UCI.

### Team

| Athletes | Event | Cross-Country Eliminator | Cross-Country Eliminator | Time Trial | Time Trial | Time Trial | BMX | BMX | Cross-Country Race | Cross-Country Race | Cross-Country Race | Road Race | Road Race | Road Race | Total Pts | Rank |
| Athletes | Event | Rank | Points | Time | Rank | Points | Rank | Points | Time | Rank | Points | Time | Rank | Points | Total Pts | Rank |
| Masahiro Ishigami Masaki Yamada | Boys' Team | | | | | | | | | | | | | | | |
| Takaho Nakashima Kiyoka Sakaguchi | Girls' Team | | | | | | | | | | | | | | | |

### Mixed Relay

| Athletes | Event | Cross-Country Girls' Race | Cross-Country Boys' Race | Boys' Road Race | Girls' Road Race | Total Time | Rank |
| Takaho Nakashima Masaki Yamada Masahiro Ishigami Kiyoka Sakaguchi | Mixed Team Relay | | | | | | |

## Equestrian

Japan qualified a rider.
| Athlete | Horse | Event | Round 1 | Round 1 | Round 2 | Round 2 | Round 2 | Total | Total |
| Athlete | Horse | Event | Penalties | Rank | Penalties | Total | Rank | Penalties | Rank |
| Sayaka Fujiwara | Lasino | Individual Jumping | | | | | | | |
| Asia Li Yaofeng (CHN) Sayaka Fujiwara (JPN) Igor Kozubaev (KGZ) Hamad Al Qadi (QAT) Hisham Alsuwayni (KSA) | Uriah Lasino Fever Fernando Quick Sylver | Team Jumping | 12 13 13 0 8 | 6 | 8 0 EL 4 4 | 28 | 6 | 28 | 6 |

## Fencing

Japan qualified three athletes based on its performance at the 2014 FIE Cadet World Championships.

### Girls

| Athlete | Event | Pool Round | Seed | Round of 16 | Quarterfinals | Semifinals | Final / BM | Rank |
| Athlete | Event | Opposition Score | Seed | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Rank |
| Miho Yoshimura | Épée | Pool 1  Nixon (USA) L 1–5 de Marchi (ITA) Simms-Lymn (JAM) Brovko (UKR) | 3 | Alqudah (JOR) W 15–9 | Lee (KOR) L 14–15 | did not advance | did not advance | 6 |
| Karin Miyawaki | Foil | Massialas (USA) W 5–3 Guillaume (FRA) Huang (CHN) Cecchini (BRA) Pásztor (HUN) Clavijo (BOL) W 5–0 | | | | Martyanova (RUS) L | Massialas (USA) L 6–7 | |
| Misaki Emura | Sabre | Gkountoura (GRE) Köse (TUR) Moseyko (RUS) Matuszak (POL) Koutogle (TOG) W 5–1 Ciss (SEN) W 5–3 | | Koutogle (TOG) W 15–7 | Gkountoura (GRE) W 15–13 | Crovari (ITA) L | Záhonyi (HUN) L 13–15 | 4 |

### Mixed Team

| Athletes | Event | Round of 16 | Quarterfinals | Semifinals / PM | Final / PM | Rank |
| Athletes | Event | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Rank |
| Asia-Oceania 1 Chien Kei Hsu Albert Hong Kong Choi Chun Yin Ryan Hong Kong Misaki Emura Japan Kim Dongju South Korea Lee Sinhee South Korea Karin Miyawaki Japan | Mixed Team | | Europe 4 W 30–22 | Europe 2 W 30–29 | Europe 1 W | |

## Field hockey

Japan qualified a girls' team based on its performance at the 2013 Under 16 Asian Cup.

### Girls' tournament
#### Roster

* Yu Asai
* Chiko Fujibayashi
* Kimika Hoshi
* Mami Karino
* Motomi Kawamura
* Miki Kozuka
* Mori Kanon
* Eika Nakamura
* Moeka Tsubouchi

#### Group Stage

| Pos | Teamvte | Pld | W | D | L | GF | GA | GD | Pts | Qualification |
| 1 | Netherlands | 4 | 4 | 0 | 0 | 46 | 1 | +45 | 12 | Quarterfinals |
| 2 | Japan | 4 | 2 | 1 | 1 | 42 | 16 | +26 | 7 | Quarterfinals |
| 3 | Argentina | 4 | 2 | 1 | 1 | 34 | 9 | +25 | 7 | Quarterfinals |
| 4 | South Africa | 4 | 1 | 0 | 3 | 8 | 34 | −26 | 3 | Quarterfinals |
| 5 | Fiji | 4 | 0 | 0 | 4 | 3 | 73 | −70 | 0 | |
* 17 August 2014 20:30
| Japan | 12–0 | South Africa |
| Kawamura 2', 9', 9' Mori 7', 17' Kozuka 11', 12', 24' Asai 24', 36' Karino 28' Hoshi 31' | Report | |
* Umpires: Liu Lijie (CHN) Ana Escalante (MEX)
* 19 August 2014 16:30
| Japan | 1–12 | Netherlands |
| Mori 24' | Report | Fillet 5', 8', 13' Veen 12', 20', 21' Matla 12', 24' Wijsman 17', 28' Kerstholt 23', 35' |
* Umpires: Ivona Makar (CRO) Ana Escalante (MEX)
* 20 August 2014 18:00
| Fiji | 1–26 | Japan |
| Bennion 36' | Report | Asai 1', 7', 25', 34' Kawamura 1', 3', 14', 15', 20', 28' Mori 4', 11', 16', 19', 30', 31', 33' Fujibayashi 5', 29', 32' Kozuka 8', 10', 35', 36' Karino 11', 18' |
* Umpires: Ivona Makar (CRO) Lucy Townend (NZL)
* 21 August 2014 21:00
| Japan | 3–3 | Argentina |
| Tsubouchi 7' Asai 17', 36' | Report | Jankunas 2' Retegui 21', 27' |
* Umpires: Ana Faias (POR) Tanja Schafer (RSA)

#### Quarterfinal

* 23 August 2014 18:00
| Japan | 7–1 | New Zealand |
| Kozuka 2', 22', 36' Mori 6', 20' Tsubouchi 8' Kawamura 31' | Report | Waddell 23' |
* Umpires: Ana Faias (POR) Emily Carroll (AUS)

#### Semifinal

* 24 August 2014 19:30
| China | 4–3 | Japan |
| Zhang Lijia 4' Zhang Xindan 10' Zhang Jinrong 13', 19' | Report | Asai 1' Mori 5', 12' |
* Umpires: Emily Carroll (AUS) Ana Faias (POR)

#### Bronze medal match

* 26 August 2014 19:00
| Argentina | 5–2 | Japan 4th |
| Ortiz 13' Guastavino 17' Jankunas 20', 25', 35' | Report | Fujibayashi 27' Mori 32' |
* Umpires: Denise Pelletier (CAN) Ivona Makar (CRO)

## Golf

Japan qualified one team of two athletes based on the 8 June 2014 IGF Combined World Amateur Golf Rankings.

### Individual

| Athlete | Event | Round 1 | Round 1 | Round 2 | Round 2 | Round 2 | Round 3 | Round 3 | Round 3 | Total | Total |
| Athlete | Event | Score | Rank | Score | Total | Rank | Score | Total | Rank | Score | Rank |
| Ren Okazaki | Boys | | | | | | | | | | |
| Maria Shinohara | Girls | 69 | 1 | 74 | 143 | 4 | | | | | |

### Team

| Athletes | Event | Round 1 (Foursome) | Round 1 (Foursome) | Round 2 (Fourball) | Round 2 (Fourball) | Round 2 (Fourball) | Round 3 (Individual Stroke) | Round 3 (Individual Stroke) | Round 3 (Individual Stroke) | Round 3 (Individual Stroke) | Total | Total |
| Athletes | Event | Score | Rank | Score | Total | Rank | Boy | Girl | Total | Rank | Score | Rank |
| Ren Okazaki Maria Shinohara | Mixed | | | | | | | | | | 277 (−11) | 7 |

## Gymnastics
### Artistic Gymnastics

Japan qualified two athletes based on its performance at the 2014 Asian Artistic Gymnastics Championships.

#### Boys

| Athlete | Event | Apparatus | Apparatus | Apparatus | Apparatus | Apparatus | Apparatus | Total | Rank |
| Athlete | Event | F | PH | R | V | PB | HB | Total | Rank |
| Kenya Yuasa | Qualification | 13.950 | 12.400 | 13.050 | 14.100 | 13.900 | 13.800 | 81.200 | 5 Q |
| Kenya Yuasa | All-around | 14.100 | 12.850 | 13.050 | 13.100 | 13.850 | 13.850 | 80.800 | 7 |
| Kenya Yuasa | Floor | | | | | | | 14.133 | |
| Kenya Yuasa | Parallel bars | | | | | | | 13.533 | 6 |
| Kenya Yuasa | Horizontal bar | | | | | | | 13.700 | |

#### Girls

| Athlete | Event | Apparatus | Apparatus | Apparatus | Apparatus | Total | Rank |
| Athlete | Event | F | V | UB | BB | Total | Rank |
| Sae Miyakawa | Qualification | 11.300 | 14.750 | 12.850 | 12.000 | 50.900 | 9 Q |
| Sae Miyakawa | All-around | 12.550 | 14.700 | 12.650 | 13.400 | 53.300 | 5 |
| Sae Miyakawa | Vault | | | | | 14.566 | |
| Sae Miyakawa | Uneven bars | | | | | 12.433 | 5 |

### Rhythmic Gymnastics

Japan qualified one athlete based on its performance at the 2014 Asian Rhythmic Championships.

#### Individual

| Athlete | Event | Qualification | Qualification | Qualification | Qualification | Qualification | Qualification | Final | Final | Final | Final | Final | Final |
| Athlete | Event | Hoop | Ball | Clubs | Ribbon | Total | Rank | Hoop | Ball | Clubs | Ribbon | Total | Rank |
| Takana Tatsuzawa | Individual | 11.650 | 12.250 | 12.700 | 12.050 | 48.650 | 12 | did not advance | did not advance | did not advance | did not advance | did not advance | did not advance |

### Trampoline

Japan qualified one athlete based on its performance at the 2014 Asian Trampoline Championships.
| Athlete | Event | Qualification | Qualification | Qualification | Qualification | Final | Final |
| Athlete | Event | Routine 1 | Routine 2 | Total | Rank | Score | Rank |
| Rana Nakano | Girls | 41.710 | 53.275 | 94.985 | 3 Q | 52.370 | |

## Judo

Japan qualified two athletes based on its performance at the 2013 Cadet World Judo Championships.

### Individual

| Athlete | Event | Round of 32 | Round of 16 | Quarterfinals | Semifinals | Repechage | Final / BM | Rank |
| Athlete | Event | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Rank |
| Hifumi Abe | Boys' −66 kg | — | Florimont (FRA) W 100–000 | Gonzalez (COL) W 100–000 | Sancho (CRC) W 100–000 | Bye | Iadov (UKR) W 100–000 | |
| Honoka Yamauchi | Girls' −44 kg | — | — | Bye | Çakmaklı (TUR) L 000–001 | Bye | Estefania Soriano (DOM) W 010–000 | |

### Team

| Athletes | Event | Round of 16 | Quarterfinals | Semifinals | Final | Rank |
| Athletes | Event | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Rank |
| Team Xian Hifumi Abe (JPN) Chiara Carminucci (ITA) Naomi de Brune (AUS) Jolan Florimont (FRA) Brillith Gamarra Carbajal (PER) Felix Penning (LUX) Marusa Stangar (SLO) Idan Vardi (ISR) | Mixed Team | Team Tani (MIX) W 7 – 0 | Team Berghmans (MIX) W 4 – 3 | Team Rouge (MIX) L 3 – 4 | Did not advance | |

## Rowing

Japan qualified one boat based on its performance at the Asian Qualification Regatta.
| Athlete | Event | Heats | Heats | Repechage | Repechage | Semifinals | Semifinals | Final | Final |
| Athlete | Event | Time | Rank | Time | Rank | Time | Rank | Time | Rank |
| Miharu Takashima | Girls' Single Sculls | | | | | | | | |
Qualification Legend: FA=Final A (medal); FB=Final B (non-medal); FC=Final C (non-medal); FD=Final D (non-medal); SA/B=Semifinals A/B; SC/D=Semifinals C/D; R=Repechage

## Rugby sevens

Japan qualified a boys' team based on its performance at the 2013 Rugby World Cup Sevens.

### Boys' tournament
#### Roster

* Ryusuke Funahashi
* Shimin Kohara
* Toshiki Kuwayama
* Doga Maeda
* Eiya Miyazaki
* Kosuke Naka
* Shogo Nakano
* Yuhei Shimada
* Koki Takeyama
* Shun Tomonaga
* Kohei Toyoda
* Kazuki Yamada

#### Group Stage

| Pos | Teamvte | Pld | W | D | L | PF | PA | PD | Pts |
| 1 | Argentina | 5 | 5 | 0 | 0 | 145 | 34 | +111 | 15 |
| 2 | France | 5 | 4 | 0 | 1 | 98 | 55 | +43 | 13 |
| 3 | Fiji | 5 | 2 | 0 | 3 | 82 | 70 | +12 | 9 |
| 4 | Kenya | 5 | 2 | 0 | 3 | 68 | 107 | −39 | 9 |
| 5 | Japan | 5 | 2 | 0 | 3 | 73 | 131 | −58 | 9 |
| 6 | United States | 5 | 0 | 0 | 5 | 59 | 128 | −69 | 5 |
* 17 August 2014 10:30
| Fiji | 29–5 | Japan |
* Youth Olympic Sports Park
* 17 August 2014 18:30
| Argentina | 40–12 | Japan |
* Youth Olympic Sports Park
* 18 August 2014 11:30
| United States | 10–22 | Japan |
* Youth Olympic Sports Park
* 18 August 2014 17:30
| Kenya | 24–27 | Japan |
* Youth Olympic Sports Park
* 19 August 2014 18:30
| France | 28–7 | Japan |
* Youth Olympic Sports Park

#### Placing 5–6

* 19 August 2014 15:30
| Japan 6th | 12–29 | United States |
* Youth Olympic Sports Park

## Sailing

Japan qualified two boats based on its performance at the Techno 293 Asian Continental Qualifiers.
| Athlete | Event | Race | Race | Race | Race | Race | Race | Race | Race | Race | Race | Race | Net Points | Final Rank |
| Athlete | Event | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | M* | Net Points | Final Rank |
| Kensei Ikeda | Boys' Techno 293 | 3 | 7 | 2 | 7 | (9) | 8 | 7 | Cancelled | Cancelled | Cancelled | 43.00 | 34.00 | 7 |
| Rina Niijima | Girls' Techno 293 | 11 | 4 | 7 | 9 | 9 | (17) | 10 | Cancelled | Cancelled | Cancelled | 67.00 | 50.00 | 7 |

## Shooting

Japan was given a wild card to compete.

### Individual

| Athlete | Event | Qualification | Qualification | Final | Final |
| Athlete | Event | Points | Rank | Points | Rank |
| Tomohiko Hasegawa | Boys' 10m Air Rifle | 611.2 | 10 | did not advance | did not advance |

### Team

| Athletes | Event | Qualification | Qualification | Round of 16 | Quarterfinals | Semifinals | Final / BM | Rank |
| Athletes | Event | Points | Rank | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Rank |
| Tomohiko Hasegawa (JPN) Hebah Arzouqi (KUW) | Mixed Team 10m Air Rifle | 802.4 | 19 | did not advance | did not advance | did not advance | did not advance | did not advance |

## Swimming

Japan qualified eight swimmers.

### Boys

| Athlete | Event | Heat | Heat | Semifinal | Semifinal | Final | Final |
| Athlete | Event | Time | Rank | Time | Rank | Time | Rank |
| Yudai Amada | 400 m freestyle | 4:00.03 | 20 | — | — | Did not advance | Did not advance |
| Yudai Amada | 800 m freestyle | — | — | — | — | 8:32.43 | 22 |
| Yudai Amada | 200 m butterfly | 2:04.89 | 15 | — | — | Did not advance | Did not advance |
| Yuta Sato | 50 m breaststroke | 30.09 | 30 | Did not advance | Did not advance | Did not advance | Did not advance |
| Yuta Sato | 100 m breaststroke | 1:04.54 | 24 | Did not advance | Did not advance | Did not advance | Did not advance |
| Ippei Watanabe | 50 m breaststroke | 28.83 | 8 Q | 28.74 | 6 Q | 28.77 | 7 |
| Ippei Watanabe | 100 m breaststroke | 1:02.26 | 3 Q | 1:02.00 | 3 Q | 1:01.66 | 4 |
| Ippei Watanabe | 200 m breaststroke | 2:15.50 | 4 Q | — | — | 2:11.31 | |
| Koki Tsunefuka | 200 m breaststroke | 2:17.28 | 11 | — | — | Did not advance | Did not advance |
| Koki Tsunefuka | 200 m individual medley | 2:05.36 | 11 | — | — | Did not advance | Did not advance |
| Yuta Sato Ippei Watanabe Amada Yudai Koki Tsunefuka | 4 × 100 m freestyle relay | 3:32.18 | 10 | — | — | Did not advance | Did not advance |
| Koki Tsunefuka Yuta Sato Amada Yudai Ippei Watanabe | 4 × 100 m medley relay | 3:53.58 | 6 Q | — | — | 3:52.60 | 7 |

### Girls

| Athlete | Event | Heat | Heat | Semifinal | Semifinal | Final | Final |
| Athlete | Event | Time | Rank | Time | Rank | Time | Rank |
| Rina Yoshimura | 200 m freestyle | 2:10.35 | 34 | — | — | Did not advance | Did not advance |
| Rina Yoshimura | 200 m butterfly | 2:15.44 | 12 | — | — | Did not advance | Did not advance |
| Miono Takeuchi | 50 m backstroke | 30.14 | 24 | Did not advance | Did not advance | Did not advance | Did not advance |
| Miono Takeuchi | 100 m backstroke | 1:05.11 | 24 | Did not advance | Did not advance | Did not advance | Did not advance |
| Miono Takeuchi | 200 m backstroke | 2:20.18 | 22 | — | — | Did not advance | Did not advance |
| Jurina Shiga | 50 m butterfly | 28.47 | 21 | Did not advance | Did not advance | Did not advance | Did not advance |
| Jurina Shiga | 100 m butterfly | 1:01.19 | 10 Q | 1:01.30 | 11 | Did not advance | Did not advance |
| Jurina Shiga | 200 m butterfly | 2:12.50 | 6 Q | — | — | 2:13.54 | 6 |
| Suzuna Onodera | 200 m individual medley | 2:19.77 | 13 | — | — | Did not advance | Did not advance |
| Jurina Shiga Rina Yoshimura Suzuna Onodera Miono Takeuchi | 4 × 100 m freestyle relay | 3:56.73 | 9 | — | — | Did not advance | Did not advance |
| Miono Takeuchi Suzuna Onodera Jurina Shiga Rina Yoshimura | 4 × 100 m medley relay | 4:17.11 | 8 Q | — | — | 4:16.71 | 8 |

### Mixed

| Athlete | Event | Heat | Heat | Final | Final |
| Athlete | Event | Time | Rank | Time | Rank |
| Ippei Watanabe Koki Tsunefuka Jurina Shiga Rina Yoshimura | 4 × 100 m freestyle relay | 3:42.74 | 15 | Did not advance | Did not advance |
| Koki Tsunefuka Ippei Watanabe Jurina Shiga Rina Yoshimura | 4 × 100 m medley relay | 4:00.73 | 9 | Did not advance | Did not advance |

## Table Tennis

Japan qualified a girl based on its performance at the 2014 World Qualification Event and a boy based on the Under-18 World Rankings.

### Singles

| Athlete | Event | Group Stage | Rank | Round of 16 | Quarterfinals | Semifinals | Final / BM | Rank |
| Athlete | Event | Opposition Score | Rank | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Rank |
| Yuto Muramatsu | Boys | Group B  Allegro (BEL) W 3–0 | 1 Q | Afanador (PUR) W 4–0 | | Calderano (BRA) W 4–1 | Fan (CHN) L 2–4 | |
| Yuto Muramatsu | Boys | Ort (GER) W 3–0 | 1 Q | Afanador (PUR) W 4–0 | | Calderano (BRA) W 4–1 | Fan (CHN) L 2–4 | |
| Yuto Muramatsu | Boys | Johnson (SKN) W 3–0 | 1 Q | Afanador (PUR) W 4–0 | | Calderano (BRA) W 4–1 | Fan (CHN) L 2–4 | |
| Miyu Kato | Girls | Imre (HUN) W 3–0 | 1 Q | Lorenzotti (URU) W 4–1 | Rakovac (CRO) W 4–1 | Liu (CHN) L 1–4 | Zhang (USA) L 2–4 | 4 |
| Miyu Kato | Girls | Ort (BEL) W 3–1 | 1 Q | Lorenzotti (URU) W 4–1 | Rakovac (CRO) W 4–1 | Liu (CHN) L 1–4 | Zhang (USA) L 2–4 | 4 |
| Miyu Kato | Girls | Dong (NZL) W 3–0 | 1 Q | Lorenzotti (URU) W 4–1 | Rakovac (CRO) W 4–1 | Liu (CHN) L 1–4 | Zhang (USA) L 2–4 | 4 |

### Team

| Athletes | Event | Group Stage | Rank | Round of 16 | Quarterfinals | Semifinals | Final / BM | Rank |
| Athletes | Event | Opposition Score | Rank | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Rank |
| Japan Miyu Kato (JPN) Yuto Muramatsu (JPN) | Mixed | India Mukherjee (IND) Yadav (IND) W 3–0 | 1 Q | | Europe 2 Trosman (ISR) Ranefur (SWE) W 2–0 | Hong Kong Doo (HKG) Hung (HKG) W | China Liu (CHN) Fan (CHN) L 0–2 | |
| Japan Miyu Kato (JPN) Yuto Muramatsu (JPN) | Mixed | Intercontinental 1 Luo (CAN) Afanador (PUR) W | 1 Q | | Europe 2 Trosman (ISR) Ranefur (SWE) W 2–0 | Hong Kong Doo (HKG) Hung (HKG) W | China Liu (CHN) Fan (CHN) L 0–2 | |
| Japan Miyu Kato (JPN) Yuto Muramatsu (JPN) | Mixed | Africa 3 Salah (DJI) Alassani (TOG) W 3–0 | 1 Q | | Europe 2 Trosman (ISR) Ranefur (SWE) W 2–0 | Hong Kong Doo (HKG) Hung (HKG) W | China Liu (CHN) Fan (CHN) L 0–2 | |
Qualification Legend: Q=Main Bracket (medal); qB=Consolation Bracket (non-medal)

## Tennis

Japan qualified two athletes based on the 9 June 2014 ITF World Junior Rankings.

### Singles

| Athlete | Event | Round of 32 | Round of 16 | Quarterfinals | Semifinals | Final / BM | Rank |
| Athlete | Event | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Rank |
| Ryotaro Matsumura | Boys' Singles | Zormann (BRA) W 2–0 6–3, 6–4 | Bahamonde (ARG) L 0–2 4–6, 1–6 | did not advance | did not advance | did not advance | 9 |
| Jumpei Yamasaki | Boys' Singles | Rogan (MNE) W 2–0 6–1, 6–3 | Zieliński (POL) W 2–1 5–7, 6–1, 6–2 | Khachanov (RUS) W 2–1 6–3, 6$^6$-7$^8$, 6–1 | Luz (BRA) L 1–2 2–6, 6–4, 2–6 | Rublev (RUS) L 0–2 1–6, 3–6 | 4 |

### Doubles

| Athletes | Event | Round of 32 | Round of 16 | Quarterfinals | Semifinals | Final / BM | Rank |
| Athletes | Event | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Rank |
| Ryotaro Matsumura (JPN) Jumpei Yamasaki (JPN) | Boys' Doubles | — | Chrysochos (CYP) Serdarušić (CRO) W 2–0 6–3, 6–4 | Bahamonde (ARG) Zukas (ARG) W w/o | Luz (BRA) Zormann (BRA) L 0–2 1–6, 2–6 | Luz (POL) Zormann (POL) W 2–1 6–4, 0–6, [10]–[4] | |
| Ye Qiuyu (CHN) Jumpei Yamasaki (JPN) | Mixed Doubles | Xu (CHN) Matsumura (JPN) W 2–0 6–1, 6–1 | Kasatkina (RUS) Rublev (RUS) W 2–1 7–5, 4–6, [10]–[3] | Stefani (BRA) Luz (BRA) W 2–1 6–1, 3–6, [10]-[6] | Stollár (HUN) Majchrzak (POL) W 2–0 7$^7$–6$^5$, 6–4 | Teichmann (SUI) Zieliński (POL) L 1–2 6–4, 3–6, [4]–[10] | |
| Xu Shilin (CHN) Ryotaro Matsumura (JPN) | Mixed Doubles | Ye (CHN) Yamasaki (JPN) L 0–2 1–6, 1–6 | did not advance | did not advance | did not advance | did not advance | 17 |

## Triathlon

Japan qualified two athletes based on its performance at the 2014 Asian Youth Olympic Games Qualifier.

### Individual

| Athlete | Event | Swim (750m) | Trans 1 | Bike (20 km) | Trans 2 | Run (5 km) | Total Time | Rank |
| Koyo Yamasaki | Boys | 09:36 | 00:43 | 31:58 | 00:21 | 17:47 | 1:00:25 | 25 |
| Minami Kubono | Girls | 10:05 | 00:47 | 31:43 | 00:25 | 18:24 | 1:01:24 | 5 |

### Relay

| Athlete | Event | Total Times per Athlete (Swim 250m, Bike 6.6 km, Run 1.8 km) | Total Group Time | Rank |
| Asia 2 Feng Jingshuang (CHN) Chong Sheng Cher (SIN) Chia Su Yin Denise (SIN) Koyo Yamasaki (JPN) | Mixed Relay | 0:23:09 0:22:16 0:24:25 0:21:00 | 01:30:50 | 13 |
| Asia 1 Minami Kubono (JPN) Lam Michael (HKG) Kim Gyuri (KOR) Lee Gyuhyung (KOR) | Mixed Relay | 0:21:43 0:20:06 0:23:10 0:21:41 | 1:26:40 | 8 |

## Wrestling

Japan qualified two athletes based on its performance at the 2014 Asian Cadet Championships.
Key:
* VT – Victory by Fall.
* PP – Decision by Points – the loser with technical points.
* PO – Decision by Points – the loser without technical points.

### Boys

| Athlete | Event | Group stage | Group stage | Group stage | Group stage | Final / RM | Rank |
| Athlete | Event | Opposition Score | Opposition Score | Opposition Score | Rank | Opposition Score | Rank |
| Yajyuro Yamasaki | Freestyle −76kg | Sargis Hovsepyan (ARM) W | Arshdeep Gurm (CAN) W | Iafeta Vou (ASA) W 4–0 | 1 Q | Meki Simonia (GEO) W 4–0 $^{ST}$ | |

### Girls

| Athlete | Event | Group stage | Group stage | Group stage | Group stage | Final | Rank |
| Athlete | Event | Opposition Score | Opposition Score | Opposition Score | Rank | Opposition Score | Rank |
| Mayu Mukaida | Freestyle −52kg | Ismail Habiba (EGY) W 4–0 | Djullibaeva Shakhodat (UZB) W 4–0 | Srey Mao Dorn (CAM) W 4–0 | 1 | Leyla Gurbanova (AZE) W 3–1 $^{PP}$ | |