# Japan at the 2010 Summer Youth Olympics

Japan competed at the 2010 Summer Youth Olympics, the inaugural Youth Olympic Games, held in Singapore from 14 August to 26 August 2010.

## Medalists

| Medal | Name | Sport | Event | Date |
| Gold | Yuka Sato | Triathlon | Girls' triathlon | 15 Aug |
| Gold | Yu Miyahara | Wrestling | Girls' freestyle 46 kg | 16 Aug |
| Gold | Yuki Takahashi | Wrestling | Boys' freestyle 54 kg | 17 Aug |
| Gold | Yuya Kamoto | Gymnastics | Boys' individual all-around | 18 Aug |
| Gold | Miku Tashiro | Judo | Girls' 63 kg | 22 Aug |
| Gold | Koki Niwa | Table tennis | Boys' singles | 23 Aug |
| Gold | Ryosuke Igarashi | Judo | Boys' 100 kg | 23 Aug |
| Gold | Koki Niwa Ayuka Tanioka | Table tennis | Mixed team | 26 Aug |
| Silver | Masaki Nashimoto | Athletics | Boys' 100m | 21 Aug |
| Silver | Yuya Kamoto | Gymnastics | Boys' rings | 21 Aug |
| Silver | Keisuke Homma | Athletics | Boys' 200m | 22 Aug |
| Silver | Moe Kyuma | Athletics | Girls' 3000m | 22 Aug |
| Silver | Sho Matsubara | Athletics | Boys' long mump | 22 Aug |
| Bronze | Ginga Munetomo | Gymnastics | Boys' trampoline | 20 Aug |
| Bronze | Chisato Doihata | Gymnastics | Girls' trampoline | 20 Aug |
| Bronze | Maya Hamano | Swimming | Girls' 200m breaststroke | 20 Aug |
Medals by sport :
| Sport | | | | Total |
| Judo | 2 | 0 | 0 | 2 |
| Table tennis | 2 | 0 | 0 | 2 |
| Wrestling | 2 | 0 | 0 | 2 |
| Gymnastics | 1 | 1 | 2 | 4 |
| Triathlon | 1 | 0 | 0 | 1 |
| Athletics | 0 | 4 | 0 | 4 |
| Swimming | 0 | 0 | 1 | 1 |
| Total | 8 | 5 | 3 | 16 |
Medals by day :
| Day | | | | Total |
| August 15 | 1 | 0 | 0 | 1 |
| August 16 | 1 | 0 | 0 | 1 |
| August 17 | 1 | 0 | 0 | 1 |
| August 18 | 1 | 0 | 0 | 1 |
| August 19 | 0 | 0 | 0 | 0 |
| August 20 | 0 | 0 | 3 | 3 |
| August 21 | 0 | 2 | 0 | 2 |
| August 22 | 1 | 3 | 0 | 4 |
| August 23 | 2 | 0 | 0 | 2 |
| August 24 | 0 | 0 | 0 | 0 |
| August 25 | 0 | 0 | 0 | 0 |
| August 26 | 1 | 0 | 0 | 1 |
| Total | 8 | 5 | 3 | 16 |

## Archery

Boys
| Athlete | Event | Ranking Round | Ranking Round | Round of 32 | Round of 16 | Quarterfinals | Semifinals | Final | Final |
| Athlete | Event | Score | Seed | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Rank |
| Tsukushi Koiwa | Boys' individual | 635 | 8 | Chu (USA) W 6–4 | Nott (AUS) L 4–6 | Did not advance | Did not advance | Did not advance | 9 |
Girls
| Athlete | Event | Ranking Round | Ranking Round | Round of 32 | Round of 16 | Quarterfinals | Semifinals | Final | Final |
| Athlete | Event | Score | Seed | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Rank |
| Mai Okubo | Girls' individual | 583 | 19 | Safitri (INA) W 6–4 | Segina (RUS) L 4–6 | Did not advance | Did not advance | Did not advance | 9 |
Mixed Team
| Athlete | Event | Partner | Round of 32 | Round of 16 | Quarterfinals | Semifinals | Final | Final |
| Athlete | Event | Partner | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Rank |
| Tsukushi Koiwa | Mixed Team | Alice Ingley (AUS) | Viehmeir (GER)/ Park (CAN) W 7–3 | Kamel (EGY)/ Oever (NED) W 7–3 | Alarcón (ESP)/ Milon (BAN) L 5–6 | Did not advance | Did not advance | 5 |
| Mai Okubo | Mixed Team | Yuan-Hsiang Ku (TPE) | Avitia (MEX)/ Hautamaki (FIN) W 6–0 | Song (CHN)/ Pianesi (ITA) L 0–6 | Did not advance | Did not advance | Did not advance | 9 |

## Athletics
### Boys
#### Track and road events

| Athletes | Event | Qualification | Qualification | Final | Final |
| Athletes | Event | Result | Rank | Result | Rank |
| Masaki Nashimoto | Boys' 100m | 10.74 | 4 Q | 10.51 | |
| Keisuke Homma | Boys' 200m | 21.74 | 4 Q | 21.27 | |
| Koki Takada | Boys' 1000m | DSQ qB | DSQ qB | 2:29.29 | 15 |
| Kazuto Nishiike | Boys' 3000m | 8:13.05 | 4 Q | 8:08.57 | 4 |
| Genki Naruse | Boys' 400m hurdles | 54.71 | 14 qC | 52.86 | 12 |
| Masaki Nashimoto (JPN) Xie Zhenye (CHN) Abdullah Ahmed Abkar (KSA) Dongbaek Choi (KOR) | Boys' medley relay | | | 1:54.14 | 5 |

#### Field Events

| Athletes | Event | Qualification | Qualification | Final | Final |
| Athletes | Event | Result | Rank | Result | Rank |
| Daichi Nakamura | Boys' Discus Throw | 52.84 | 11 qB | 51.82 | 12 |
| Sho Matsubara | Boys' Long Jump | 7.51 | 4 Q | 7.65 | |
| Wataru Tanaka | Boys' Pole Vault | 4.80 | 1 Q | 4.70 | 7 |

### Girls
#### Track and road events

| Athletes | Event | Qualification | Qualification | Final | Final |
| Athletes | Event | Result | Rank | Result | Rank |
| Mai Nishiwaki | Girls' 1000m | 2:52.85 | 10 Q | 2:54.39 | 9 |
| Moe Kyuma | Girls' 3000m | 9:35.33 | 2 Q | 9:23.70 | |
| Motoko Nakahara | Girls' 100m hurdles | 14.32 | 13 qB | 14.29 | 13 |

#### Field events

| Athletes | Event | Qualification | Qualification | Final | Final |
| Athletes | Event | Result | Rank | Result | Rank |
| Shoko Matsuda | Girls' shot put | 13.08 | 12 qB | 13.53 | 10 |
| Tsukasa Okumura | Girls' javelin throw | 42.62 | 10 qB | 46.24 | 9 |
| Yuka Takahashi | Girls' long jump | 5.99 | 5 Q | 6.08 | 5 |
| Remi Odajima | Girls' pole vault | 3.80 | 8 Q | 3.65 | 6 |

## Badminton
### Boys

| Athlete | Event | Group stage | Group stage | Group stage | Group stage | Knock-out stage | Knock-out stage | Knock-out stage | Knock-out stage |
| Athlete | Event | Match 1 | Match 2 | Match 3 | Rank | Quarterfinal | Semifinal | Final | Rank |
| Kento Horiuchi | Boys' singles | Sukamta (INA) L 1–2 (7–21, 21–14, 13–21) | Pan (CAN) W 2–0 (21–18, 21–10) | Djabar (SUR) W 2–0 (21–11, 21–15) | 2 | Did not advance | Did not advance | Did not advance | |

### Girls

| Athlete | Event | Group Stage | Group Stage | Group Stage | Group Stage | Knock-Out Stage | Knock-Out Stage | Knock-Out Stage | Knock-Out Stage |
| Athlete | Event | Match 1 | Match 2 | Match 3 | Rank | Quarterfinal | Semifinal | Final | Rank |
| Misaki Matsutomo | Girls' singles | Wentholt (NED) L 1–2 (17–21, 21–5, 19–21) | Kune (MRI) W 2–0 (21–4, 21–2) | Wong (CAN) W 2–0 (21–11, 21–9) | 2 | Did not advance | Did not advance | Did not advance | |
| Naoko Fukuman | Girls' singles | Zharka (UKR) W 2–0 (21–8, 21–8) | Choi (KOR) L 0–2 (15–21, 14–21) | Vu (VIE) L 1–2 (15–21, 21–16, 10–21) | 3 | Did not advance | Did not advance | Did not advance | |

## Basketball

Girls
| Squad list | Event | Group stage | Group stage | Placement stage | Placement stage | Placement stage | Rank |
| Squad list | Event | Group D | Rank | 1st–8th | 5th–8th | 5th–6th | Rank |
| Misato Kuma Hikari Itaya Maria Imanaka Moeko Nagaoka (C) | Girls' basketball | Italy L 17–26 | 2 | China L 23–26 | Germany W 28–18 | Brazil W 32–29 | 5 |
| Misato Kuma Hikari Itaya Maria Imanaka Moeko Nagaoka (C) | Girls' basketball | Australia W 17–10 | 2 | China L 23–26 | Germany W 28–18 | Brazil W 32–29 | 5 |
| Misato Kuma Hikari Itaya Maria Imanaka Moeko Nagaoka (C) | Girls' basketball | Chile W 24–17 | 2 | China L 23–26 | Germany W 28–18 | Brazil W 32–29 | 5 |
| Misato Kuma Hikari Itaya Maria Imanaka Moeko Nagaoka (C) | Girls' basketball | France W 34–20 | 2 | China L 23–26 | Germany W 28–18 | Brazil W 32–29 | 5 |

## Cycling
### Cross country

| Athlete | Event | Time | Rank | Points |
| Idomu Yamamoto | Boys' cross country | 1:05:14 | 19 | 72 |
| Manami Iwade | Girls' cross country | 54:19 | 11 | 32 |

### Time trial

| Athlete | Event | Time | Rank | Points |
| Koji Nagase | Boys' time trial | 4:14.07 | 15 | 28 |
| Manami Iwade | Girls' time trial | 3:42.29 | 20 | 40 |

### BMX

| Athlete | Event | Seeding round | Seeding round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final |
| Athlete | Event | Seeding round | Seeding round | Run 1 | Run 1 | Run 2 | Run 2 | Run 3 | Run 3 | Rank | Run 1 | Run 1 | Run 2 | Run 2 | Run 3 | Run 3 | Rank | Final | Final | Final |
| Athlete | Event | Time | Rank | Time | Rank | Time | Rank | Time | Rank | Rank | Time | Rank | Time | Rank | Time | Rank | Rank | Time | Rank | Points |
| Yoshitaku Nagasako | Boys' BMX | 32.353 | 7 | 36.726 | 2 | 33.045 | 2 | 32.581 | 2 | 2 Q | 32.907 | 5 | 32.839 | 2 | 55.485 | 6 | 4 Q | 31.938 | 5 | 30 |
| Manami Iwade | Girls' BMX | 43.321 | 10 | 43.573 | 3 | 42.648 | 3 | 42.540 | 3 | 3 Q | 44.103 | 6 | 43.318 | 5 | 43.916 | 6 | 5 | Did not advance | Did not advance | 30 |

### Road race

| Athlete | Event | Time | Rank | Points |
| Koji Nagase | Boys' Road race | 1:05:44 | 21 | 72 |
| Idomu Yamamoto | Boys' Road race | 1:05:44 | 26 | |
| Yoshitaku Nagasako | Boys' Road race | DNF | DNF | |

### Overall

| Team | Event | Cross Country Pts | Cross Country Pts | Time Trial Pts | Time Trial Pts | BMX Pts | BMX Pts | Road race Pts | Total | Rank |
| Team | Event | Boys | Girls | Boys | Girls | Boys | Girls | Road race Pts | Total | Rank |
| Manami Iwade Idomu Yamamoto Koji Nagase Yoshitaku Nagasako | Mixed Team | 72 | 32 | 28 | 40 | 30 | 30 | 72 | 304 | 16 |

## Gymnastics
### Artistic gymnastics
#### Boys

| Athlete | Event | Floor | Floor | Pommel horse | Pommel horse | Rings | Rings | Vault | Vault | Parallel bars | Parallel bars | Horizontal bar | Horizontal bar | Total | Total |
| Athlete | Event | Score | Rank | Score | Rank | Score | Rank | Score | Rank | Score | Rank | Score | Rank | Score | Rank |
| Yuya Kamoto | Boys' qualification | 14.500 | 2 Q | 13.650 | 5 Q | 14.500 | 2 Q | 15.750 | 5 | 14.850 | 1 Q | 13.950 | 5 Q | 87.200 | 1 Q |
| Yuya Kamoto | Boys' individual all-around | 14.250 | 2 | 13.350 | 6 | 14.400 | 2 | 15.700 | 3 | 14.600 | 1 | 14.050 | 2 | 86.350 | |
| Athlete | Event | Score | Rank |
| Yuya Kamoto | Boys' floor | 13.050 | 8 |
| Yuya Kamoto | Boys' pommel horse | 13.325 | 6 |
| Yuya Kamoto | Boys' rings | 14.200 | |
| Yuya Kamoto | Boys' parallel bars | 13.750 | 6 |
| Yuya Kamoto | Boys' horizontal bar | 14.075 | 4 |

#### Girls

| Athlete | Event | Vault | Vault | Uneven bars | Uneven bars | Beam | Beam | Floor | Floor | Total | Total |
| Athlete | Event | Score | Rank | Score | Rank | Score | Rank | Score | Rank | Score | Rank |
| Natsumi Sasada | Girls' qualification | 14.000 | 4 Q | 13.200 | 9 | 13.550 | 9 | 12.800 | 13 | 53.550 | 10 Q |
| Natsumi Sasada | Girls' individual all-around | 13.800 | 6 | 14.050 | 3 | 14.100 | 5 | 13.150 | 8 | 55.100 | 4 |
| Athlete | Event | Score | Rank |
| Natsumi Sasada | Girls' vault | 13.662 | 4 |

### Rhythmic gymnastics
#### Team

| Athlete | Event | Qualification | Qualification | Qualification | Qualification | Final | Final | Final | Final |
| Athlete | Event | Hoops | Ribbons | Total | Rank | Hoops | Ribbons | Total | Rank |
| Midori Kahata Momoka Nagai Sara Ogiso Shiho Suzuki | Girls' group all-around | 23.000 | 22.900 | 45.900 | 2 Q | 21.100 | 21.375 | 42.475 | 4 |

### Trampoline

| Athlete | Event | Qualification | Qualification | Qualification | Qualification | Final | Final |
| Athlete | Event | Routine 1 | Routine 2 | Total | Rank | Routine 1 | Rank |
| Ginga Munetomo | Boys' trampoline | 27.500 | 38.700 | 66.200 | 3 Q | 40.000 | |
| Chisato Doihata | Girls' trampoline | 26.600 | 35.800 | 62.400 | 4 Q | 36.700 | |

## Judo
### Individual

| Athlete | Event | Round 1 | Round 2 | Round 3 | Semifinals | Final | Rank |
| Athlete | Event | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Rank |
| Ryosuke Igarashi | Boys' −100 kg | BYE | Pineda (VEN) W 021–000 | | Mendoza (CUB) W 100–000 | Nikiforov (BEL) W 002–000 | |
| Miku Tashiro | Girls' −63 kg | BYE | Rak (EST) W 100–000 | Shor (ISR) W 101–000 | Matic (CRO) W 100–001 | Gomes (BRA) W 100–000 | |

### Team

| Team | Event | Round 1 | Round 2 | Semifinals | Final | Rank |
| Team | Event | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Rank |
| Chiba Dieulourdes Joseph (HAI) Diau Bauro (FIJ) Alexandra Pop (ROU) Phuc Cai (DEN) Sophio Beridze (GEO) Rijad Dedeic (MNE) Ryosuke Igarashi (JPN) | Mixed Team | BYE | Essen L 2–5 | Did not advance | Did not advance | 5 |
| Essen Lesly Cano (PER) Pedro Rivadulla (ESP) Andrea Krisandova (SVK) Kairat Agibayev (KAZ) [Daryl Lokuku Ngambomo (COD) Miku Tashiro (JPN) Alex Maxell Garcia Mendoza (CUB) | Mixed Team | Munich W 4–3 | Chiba W 5–2 | Cairo W 5–2 | Belgrade W 6–1 | |

## Rowing

| Athlete | Event | Heats | Heats | Repechage | Repechage | Semifinals | Semifinals | Final | Final | Overall Rank |
| Athlete | Event | Time | Rank | Time | Rank | Time | Rank | Time | Rank | Overall Rank |
| Sae Kitayama | Girls' single sculls | 4:03.14 | 6 QR | 4:09.90 | 4 QC/D | 4:16.02 | 3 QC | 4:16.43 | 5 | 16 |

## Sailing
### Windsurfing

| Athlete | Event | Race | Race | Race | Race | Race | Race | Race | Race | Race | Race | Race | Points | Rank |
| Athlete | Event | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | M* | Points | Rank |
| Dauya Kuramochi | Boys' Techno 293 | 4 | 7 | 10 | 8 | 7 | 11 | 7 | OCS | 9 | 4 | 10 | 77 | 8 |
| Shiori Yuri | Girls' Techno 293 | 12 | 11 | 12 | 14 | 12 | OCS | 12 | 18 | 12 | 12 | 11 | 126 | 13 |

## Swimming

Boys
| Athletes | Event | Heat | Heat | Semifinal | Semifinal | Final | Final |
| Athletes | Event | Time | Position | Time | Position | Time | Position |
| Yusuke Yamagishi | Boys' 100m backstroke | 58.97 | 19 | Did not advance | Did not advance | Did not advance | Did not advance |
| Yusuke Yamagishi | Boys' 200m backstroke | 2:05.32 | 7 Q | | | 2:04.67 | 5 |
| Tatsunari Shoda | Boys' 200m breaststroke | 2:21.54 | 15 | | | Did not advance | Did not advance |
| Tatsunari Shoda | Boys' 200m individual medley | 2:08.29 | 18 | | | Did not advance | Did not advance |
| Jun Isaji | Boys' 100m butterfly | 55.88 | 19 | Did not advance | Did not advance | Did not advance | Did not advance |
| Jun Isaji | Boys' 200m butterfly | 2:04.13 | 10 | | | Did not advance | Did not advance |
| Takahiro Tsutsumi | Boys' 200m individual medley | 2:03.73 | 5 Q | | | 2:06.18 | 8 |
| Jun Isaji Tatsunari Shoda Takahiro Tsutsumi Yusuke Yamagishi | Boys' 4 × 100 m freestyle relay | 3:32.20 | 10 | | | Did not advance | Did not advance |
| Jun Isaji Tatsunari Shoda Takahiro Tsutsumi Yusuke Yamagishi | Boys' 4 × 100 m medley relay | 3:52.55 | 9 | | | Did not advance | Did not advance |
Girls
| Athletes | Event | Heat | Heat | Semifinal | Semifinal | Final | Final |
| Athletes | Event | Time | Position | Time | Position | Time | Position |
| Yukiko Watanabe | Girls' 100m backstroke | 1:04.23 | 6 Q | 1:04.24 | 9 | Did not advance | Did not advance |
| Yukiko Watanabe | Girls' 200m backstroke | 2:16.82 | 8 Q | | | 2:18.36 | 8 |
| Mina Ochi | Girls' 100m backstroke | 1:05.52 | 18 | Did not advance | Did not advance | Did not advance | Did not advance |
| Mina Ochi | Girls' 200m backstroke | 2:18.26 | 12 | | | Did not advance | Did not advance |
| Maya Hamano | Girls' 100m breaststroke | 1:11.32 | 5 Q | 1:10.91 | 5 Q | 1:10.18 | 4 |
| Maya Hamano | Girls' 200m breaststroke | 2:31.67 | 3 Q | | | 2:29.75 | |
| Mayuko Okada | Girls' 100m butterfly | 1:03.75 | 21 | Did not advance | Did not advance | Did not advance | Did not advance |
| Mayuko Okada | Girls' 200m butterfly | 2:18.72 | 15 | | | Did not advance | Did not advance |
| Yukiko Watanabe Mina Ochi Maya Hamano Mayuko Okada | Girls' 4 × 100 m freestyle relay | 4:02.29 | 10 | | | Did not advance | Did not advance |
| Yukiko Watanabe Mina Ochi Maya Hamano Mayuko Okada | Girls' 4 × 100 m medley relay | 4:19.00 | 6 Q | | | 4:16.80 | 5 |
Mixed
| Athletes | Event | Heat | Heat | Semifinal | Semifinal | Final | Final |
| Athletes | Event | Time | Position | Time | Position | Time | Position |
| Jun Isaji Yusuke Yamagishi Mina Ochi Maya Hamano | Mixed 4 × 100 m freestyle relay | 3:49.23 | 14 | | | Did not advance | Did not advance |
| Yukiko Watanabe Tatsinari Shoda Mayuko Okada Takahiro Tsutsumi | Mixed 4 × 100 m medley relay | 4:06.13 | 8 Q | | | 4:06.18 | 7 |

## Table tennis
### Individual

| Athlete | Event | Round 1 | Round 1 | Round 2 | Round 2 | Quarterfinals | Semifinals | Final | Rank |
| Athlete | Event | Group Matches | Rank | Group Matches | Rank | Quarterfinals | Semifinals | Final | Rank |
| Koki Niwa | Boys' singles | Kulpa (POL) W 3–0 (11–6, 11–4, 11–7) | 1 Q | Hageraats (NED) W 3–0 (11–3, 11–6, 11–2) | 1 Q | Onaolapo (NGR) W 4–2 (8–11, 8–11, 11–8, 11–9, 11–9, 13–11) | Gauzy (FRA) W 4–0 (11–7, 14–12, 11–4, 11–8) | Hung (TPE) W 4–2 (9–11, 11–8, 13–11, 13–15, 11–7, 15–13) | |
| Koki Niwa | Boys' singles | Wagner (GER) W 3–0 (11–7, 11–5, 11–7) | 1 Q | Lakatos (HUN) W 3–0 (11–5, 11–7, 11–2) | 1 Q | Onaolapo (NGR) W 4–2 (8–11, 8–11, 11–8, 11–9, 11–9, 13–11) | Gauzy (FRA) W 4–0 (11–7, 14–12, 11–4, 11–8) | Hung (TPE) W 4–2 (9–11, 11–8, 13–11, 13–15, 11–7, 15–13) | |
| Koki Niwa | Boys' singles | Mejía (ESA) W 3–0 (11–4, 11–5, 11–4) | 1 Q | Kim (KOR) W 3–0 (11–7, 11–4, 7–11 11–3) | 1 Q | Onaolapo (NGR) W 4–2 (8–11, 8–11, 11–8, 11–9, 11–9, 13–11) | Gauzy (FRA) W 4–0 (11–7, 14–12, 11–4, 11–8) | Hung (TPE) W 4–2 (9–11, 11–8, 13–11, 13–15, 11–7, 15–13) | |
| Ayuka Tanioka | Girls' singles | Wu (NZL) W 3–0 (11–7, 11–3, 11–4) | 1 Q | Meshref (EGY) W 3–1 (12–10, 10–12, 11–7, 11–4) | 2 Q | Sawettabut (THA) L 0–4 (7–11, 4–11, 10–12, 8–11) | Did not advance | Did not advance | 5 |
| Ayuka Tanioka | Girls' singles | Li (SIN) W 3–2 (11–9, 11–5, 9–11, 16–18, 11–6) | 1 Q | Noskova (RUS) W 3–1 (11–7, 7–11, 12–10, 11–7) | 2 Q | Sawettabut (THA) L 0–4 (7–11, 4–11, 10–12, 8–11) | Did not advance | Did not advance | 5 |
| Ayuka Tanioka | Girls' singles | Loveridge (GBR) W 3–1 (9–11, 11–6, 11–4, 11–2) | 1 Q | Gu (CHN) L 0–3 (2–11, 2–11, 10–12) | 2 Q | Sawettabut (THA) L 0–4 (7–11, 4–11, 10–12, 8–11) | Did not advance | Did not advance | 5 |

### Team

| Athlete | Event | Round 1 | Round 1 | Round 2 | Quarterfinals | Semifinals | Final | Rank |
| Athlete | Event | Group matches | Rank | Round 2 | Quarterfinals | Semifinals | Final | Rank |
| Japan Ayuka Tanioka (JPN) Koki Niwa (JPN) | Mixed team | Brazil Kumahara (BRA) Jouti (BRA) W 3–0 (3–0, 3–0, 3–0) | 1 Q | Hong Kong Ng (HKG) Chiu (HKG) W 2–0 (3–2, 3–2) | Singapore Li (SIN) Chew (SIN) W 2–1 (0–3, 3–1, 3–2) | Intercontinental 1 Gu (CHN) Hmam (TUN) W 2–1 (0–3, 3–0, 3–1) | Korea Yang (KOR) Kim (KOR) W 2–1 (2–3, 3–2, 3–2) | |
| Japan Ayuka Tanioka (JPN) Koki Niwa (JPN) | Mixed team | Pan America 1 Hsing (USA) Gavilan (PAR) W 3–0 (3–2, 3–0, 3–0) | 1 Q | Hong Kong Ng (HKG) Chiu (HKG) W 2–0 (3–2, 3–2) | Singapore Li (SIN) Chew (SIN) W 2–1 (0–3, 3–1, 3–2) | Intercontinental 1 Gu (CHN) Hmam (TUN) W 2–1 (0–3, 3–0, 3–1) | Korea Yang (KOR) Kim (KOR) W 2–1 (2–3, 3–2, 3–2) | |
| Japan Ayuka Tanioka (JPN) Koki Niwa (JPN) | Mixed team | BYE | 1 Q | Hong Kong Ng (HKG) Chiu (HKG) W 2–0 (3–2, 3–2) | Singapore Li (SIN) Chew (SIN) W 2–1 (0–3, 3–1, 3–2) | Intercontinental 1 Gu (CHN) Hmam (TUN) W 2–1 (0–3, 3–0, 3–1) | Korea Yang (KOR) Kim (KOR) W 2–1 (2–3, 3–2, 3–2) | |

## Tennis
### Singles

| Athlete | Event | Round 1 | Round 2 | Quarterfinals | Semifinals | Final |
| Yasutaka Uchiyama | Boys' singles | Džumhur (BIH) L 0–2 (5–7, 2–6) | Consolation Acosta (ECU) L 1–2 (3–6, 6–4, [4–10]) | Did not advance | Did not advance | Did not advance |
| Sachie Ishizu | Girls' singles | Kremen (BLR) L 0–2 (3–6, 3–6) | Consolation Ysidora (INA) W 2–0 (w/o) | Consolation Pérez (VEN) W 2–0 (6–1, 6–3) | Consolation Jodoin (CAN) W 2–0 (6–1, 7–6) | Consolation Friedsam (GER) W 2–0 (6–2, 7–5) |
| Emi Mutaguchi | Girls' singles | Putintseva (RUS) L 0–2 (3–6, 4–6) | Consolation Royg (PAR) W 2–0 (6–1, 6–4) | Consolation Paliivets (CAN) W 2–0 (3–0RET) | Consolation Friedsam (GER) L 0–2 (0–6, 3–6) | Did not advance |

### Doubles

| Athlete | Event | Round 1 | Quarterfinals | Semifinals | Final | Rank |
| Liang-Chi Huang (TPE) Yasutaka Uchiyama (JPN) | Boys' doubles | Galeano (PAR) Rodriguez (VEN) L 0–2 (4–6, 4–6) | Did not advance | Did not advance | Did not advance | |
| Sachie Ishizu (JPN) Emi Mutaguchi (JPN) | Girls' doubles | Kumkhum (THA) Ysidora (INA) W 2–0 (6–1, 6–4) | Babos (HUN) Mestach (BEL) L 1–2 (6–4, 3–6, [12–14]) | Did not advance | Did not advance | |

## Triathlon

Yuka Sato won the first gold medal of the Youth Olympic Games.

### Girls

| Triathlete | Event | Swimming | Transit 1 | Cycling | Transit 2 | Running | Total time | Rank |
| Yuka Sato | individual | 9:32 | 0:35 | 32:10 | 0:27 | 18:05 | 1:00:49.69 | |

### Men's

| Athlete | Event | Swim (1.5 km) | Trans 1 | Bike (40 km) | Trans 2 | Run (10 km) | Total | Rank |
| Yuki Kubono | individual | 9:21 | 0:35 | 30:26 | 0:25 | 18:39 | 59:26.04 | 26 |

### Mixed

| Athlete | Event | Total times per athlete (swim 250 m, bike 7 km, run 1.7 km) | Total group time | Rank |
| Mingxiu Ma (CHN) Leong Tim Law (HKG) Karolina Solovyova (KAZ) Yuki Kubono (JPN) | Mixed team relay Asia 2 | 22:55 20:43 23:54 20:08 | 1:27:40.62 | 13 |
| Sato Yuka (JPN) Ji Hong Lee (KOR) Wai Sum Vincci Hui (HKG) Ru Cheng (CHN) | Mixed team relay Asia 1 | 20:16 20:06 22:19 20:39 | 1:23:20.88 | 8 |

## Volleyball

| Squad List | Event | Group Stage | Group Stage | Semifinal | Bronze Medal Match | Rank |
| Squad List | Event | Group A | Rank | Semifinal | Bronze Medal Match | Rank |
| Yoko Onuma Nozomi Inoue Chizu Ichikawa Anna Fukami (C) Yui Kageyama Yukiko Akashi Saaya Karaki Ayaka Mori Mami Ogonuki Sayaka Tokiwa Akari Imakado Mayu Koizumi | Girls' Volleyball | Singapore W 3–0 (25–9, 25–16, 25–9) | 2 Q | United States L 0–3 (20–25, 23–25, 22–25) | Peru L 1–3 (25–22, 28–30, 11–25, 17–25) | 4 |
| Yoko Onuma Nozomi Inoue Chizu Ichikawa Anna Fukami (C) Yui Kageyama Yukiko Akashi Saaya Karaki Ayaka Mori Mami Ogonuki Sayaka Tokiwa Akari Imakado Mayu Koizumi | Girls' Volleyball | Peru L 0–3 (22–25, 19–25, 18–25) | 2 Q | United States L 0–3 (20–25, 23–25, 22–25) | Peru L 1–3 (25–22, 28–30, 11–25, 17–25) | 4 |

## Weightlifting

| Athlete | Event | Snatch | Clean & jerk | Total | Rank |
| Miku Shichinohe | Girls' +63kg | 80 | 93 | 173 | 12 |

## Wrestling
### freestyle

| Athlete | Event | Pools | Pools | Final | Rank |
| Athlete | Event | Groups | Rank | Final | Rank |
| Yuki Takahashi | Boys' 54 kg | Ghanmi (TUN) W T. Fall (6–0, 7–0) | 1 | Guluyev (AZE) W 2–0 (4–0, 4–0) | |
| Yuki Takahashi | Boys' 54 kg | Daylak (TUR) W 2–0 (3–0, 3–0) | 1 | Guluyev (AZE) W 2–0 (4–0, 4–0) | |
| Yuki Takahashi | Boys' 54 kg | Serrata (DOM) W Fall (6–0) | 1 | Guluyev (AZE) W 2–0 (4–0, 4–0) | |
| Yuki Takahashi | Boys' 54 kg | Mbambi (CGO) W T. Fall (7–0, 7–0) | 1 | Guluyev (AZE) W 2–0 (4–0, 4–0) | |
| Yu Miyahara | Girls' 46kg | Olli (FIN) W 2–0 (1+–1, 5–0) | 1 | Leorda (MDA) W 2–0 (4–2, 6–0) | |
| Yu Miyahara | Girls' 46kg | Segura (VEN) W 2–0 (4–1, 2–0) | 1 | Leorda (MDA) W 2–0 (4–2, 6–0) | |