3-on-3 basketball at the 2009 Asian Youth Games was contested by 19 teams in the boys' tournament and 16 teams in the girls' tournament. All games were held at Anglican High School, Singapore. The competition was held using the FIBA 33 ruleset developed by the sport's worldwide governing body, FIBA.
| Rank | Nation | Gold | Silver | Bronze | Total |
|---|---|---|---|---|---|
| 1 | China (CHN) | 1 | 1 | 0 | 2 |
| 2 | Japan (JPN) | 1 | 0 | 0 | 1 |
| 3 | Iran (IRI) | 0 | 1 | 0 | 1 |
| 4 | South Korea (KOR) | 0 | 0 | 2 | 2 |
| Total | 2 | 2 | 2 | 6 | |
| Event | Gold | Silver | Bronze |
|---|---|---|---|
| Boys | China (CHN) Huang Guobin Li Weijie Zhang Minghao Zhao Xingchen |
Iran (IRI) Mir-Mohammad Mirfattahi Mohammad Ojaghi Amir Sedighi Soheil Yousefi |
South Korea (KOR) Choi Chang-Jin Choi Seong-Wook Lee Dong-Yeop Lee Jong-Hyun |
| Girls | Japan (JPN) Naoko Chikahira Manami Fujioka Yuki Ikeya Moeko Nagaoka |
China (CHN) Jin Jiabao Ma Xueya Shen Yi Song Yang |
South Korea (KOR) Kang Kye-Lee Park Da-Jeong Jeong Yu-Jin Cha Yea-Jin |
| Team | Pld | W | L | PF | PA | PD | Pts |
|---|---|---|---|---|---|---|---|
| Thailand | 3 | 3 | 0 | 85 | 45 | +40 | 6 |
| United Arab Emirates | 3 | 2 | 1 | 84 | 47 | +37 | 5 |
| Palestine | 3 | 1 | 2 | 75 | 67 | +8 | 4 |
| Bangladesh | 3 | 0 | 3 | 14 | 99 | −85 | 3 |
| July 1 | Thailand | 22–18 | United Arab Emirates | Anglican High School, Singapore |
| July 1 | Palestine | 23–30 | Thailand | Anglican High School, Singapore |
| July 2 | United Arab Emirates | 33–6 | Bangladesh | Anglican High School, Singapore |
| July 2 | United Arab Emirates | 33–19 | Palestine | Anglican High School, Singapore |
| July 2 | Bangladesh | 4–33 | Thailand | Anglican High School, Singapore |
| July 3 | Palestine | 33–4 | Bangladesh | Anglican High School, Singapore |
| Team | Pld | W | L | PF | PA | PD | Pts |
|---|---|---|---|---|---|---|---|
| Korea | 3 | 3 | 0 | 100 | 42 | +58 | 6 |
| Sri Lanka | 3 | 2 | 1 | 83 | 48 | +35 | 5 |
| Qatar | 3 | 1 | 2 | 47 | 90 | −43 | 4 |
| Nepal | 3 | 0 | 3 | 45 | 95 | −50 | 3 |
| July 1 | Sri Lanka | 33–11 | Nepal | Anglican High School, Singapore |
| July 1 | Qatar | 4–34 | Sri Lanka | Anglican High School, Singapore |
| July 2 | Korea | 33–15 | Qatar | Anglican High School, Singapore |
| July 2 | Korea | 34–11 | Nepal | Anglican High School, Singapore |
| July 3 | Sri Lanka | 16–33 | Korea | Anglican High School, Singapore |
| July 3 | Nepal | 23–28 | Qatar | Anglican High School, Singapore |
| Team | Pld | W | L | PF | PA | PD | Pts |
|---|---|---|---|---|---|---|---|
| Philippines | 4 | 4 | 0 | 130 | 94 | +36 | 8 |
| Iran | 4 | 3 | 1 | 121 | 67 | +54 | 7 |
| Japan | 4 | 2 | 2 | 106 | 85 | +21 | 6 |
| Jordan | 4 | 1 | 3 | 92 | 106 | −14 | 5 |
| Mongolia | 4 | 0 | 4 | 37 | 134 | −97 | 4 |
| July 1 | Philippines | 27–26 | Iran | Anglican High School, Singapore |
| July 1 | Japan | 33–8 | Jordan | Anglican High School, Singapore |
| July 1 | Mongolia | 11–34 | Philippines | Anglican High School, Singapore |
| July 1 | Iran | 33–14 | Japan | Anglican High School, Singapore |
| July 2 | Jordan | 33–10 | Mongolia | Anglican High School, Singapore |
| July 2 | Japan | 26–34 | Philippines | Anglican High School, Singapore |
| July 2 | Jordan | 20–28 | Iran | Anglican High School, Singapore |
| July 2 | Mongolia | 10–33 | Japan | Anglican High School, Singapore |
| July 3 | Philippines | 35–31 | Jordan | Anglican High School, Singapore |
| July 3 | Iran | 34–6 | Mongolia | Anglican High School, Singapore |
| Team | Pld | W | L | PF | PA | PD | Pts |
|---|---|---|---|---|---|---|---|
| China | 3 | 3 | 0 | 100 | 50 | +50 | 6 |
| Singapore | 3 | 2 | 1 | 89 | 67 | +22 | 5 |
| India | 3 | 1 | 2 | 76 | 75 | +1 | 4 |
| Uzbekistan | 3 | 0 | 3 | 27 | 100 | −73 | 3 |
| July 1 | Singapore | 21–34 | China | Anglican High School, Singapore |
| July 1 | Uzbekistan | 8–33 | India | Anglican High School, Singapore |
| July 1 | China | 33–10 | Uzbekistan | Anglican High School, Singapore |
| July 2 | Uzbekistan | 9–34 | Singapore | Anglican High School, Singapore |
| July 2 | India | 19–33 | China | Anglican High School, Singapore |
| July 3 | Singapore | 34–24 | India | Anglican High School, Singapore |
| Quarter finals | Semi finals | Final | ||||||||
| July 3 | ||||||||||
| Thailand | 19 | |||||||||
| July 4 | ||||||||||
| Iran | 33 | |||||||||
| Iran | 33 | |||||||||
| July 3 | ||||||||||
| Korea | 28 | |||||||||
| Korea | 34 | |||||||||
| July 4 | ||||||||||
| Singapore | 24 | |||||||||
| Iran | 26 | |||||||||
| July 3 | ||||||||||
| China | 29 | |||||||||
| Philippines | 33 | |||||||||
| July 4 | ||||||||||
| United Arab Emirates | 9 | |||||||||
| Philippines | 31 | 3rd & 4th place | ||||||||
| July 3 | ||||||||||
| China | 34 | |||||||||
| China | 34 | Korea | 33 | |||||||
| Sri Lanka | 9 | Philippines | 29 | |||||||
| July 4 | ||||||||||
| Team | Pld | W | L | PF | PA | PD | Pts |
|---|---|---|---|---|---|---|---|
| Thailand | 2 | 2 | 0 | 68 | 39 | +29 | 4 |
| Indonesia | 2 | 1 | 1 | 54 | 59 | −5 | 3 |
| Jordan | 2 | 0 | 2 | 43 | 67 | −24 | 2 |
| July 1 | Thailand | 34–21 | Indonesia | Anglican High School, Singapore |
| July 2 | Jordan | 18–34 | Thailand | Anglican High School, Singapore |
| July 3 | Indonesia | 33–25 | Jordan | Anglican High School, Singapore |
| Team | Pld | W | L | PF | PA | PD | Pts |
|---|---|---|---|---|---|---|---|
| Japan | 3 | 3 | 0 | 100 | 19 | +81 | 6 |
| Korea | 3 | 2 | 1 | 86 | 51 | +35 | 5 |
| Nepal | 3 | 1 | 2 | 46 | 95 | −49 | 4 |
| Kuwait | 3 | 0 | 3 | 31 | 98 | −67 | 3 |
| July 1 | Korea | 34–14 | Nepal | Anglican High School, Singapore |
| July 1 | Japan | 33–0 | Kuwait | Anglican High School, Singapore |
| July 2 | Nepal | 0–34 | Japan | Anglican High School, Singapore |
| July 2 | Korea | 33–4 | Kuwait | Anglican High School, Singapore |
| July 3 | Japan | 33–19 | Korea | Anglican High School, Singapore |
| July 3 | Kuwait | 27–32 | Nepal | Anglican High School, Singapore |
| Team | Pld | W | L | PF | PA | PD | Pts |
|---|---|---|---|---|---|---|---|
| China | 3 | 3 | 0 | 100 | 30 | +70 | 6 |
| India | 3 | 2 | 1 | 86 | 61 | +25 | 5 |
| Singapore | 3 | 1 | 2 | 65 | 64 | +1 | 4 |
| Bahrain | 3 | 0 | 3 | 4 | 100 | −96 | 3 |
| July 1 | China | 33–7 | Singapore | Anglican High School, Singapore |
| July 2 | Singapore | 25–29 | India | Anglican High School, Singapore |
| July 2 | China | 33–0 | Bahrain | Anglican High School, Singapore |
| July 2 | India | 34–2 | Bahrain | Anglican High School, Singapore |
| July 3 | India | 23–34 | China | Anglican High School, Singapore |
| July 3 | Bahrain | 2–33 | Singapore | Anglican High School, Singapore |
| Team | Pld | W | L | PF | PA | PD | Pts |
|---|---|---|---|---|---|---|---|
| Philippines | 2 | 2 | 0 | 30 | 22 | +8 | 4 |
| Sri Lanka | 2 | 1 | 1 | 56 | 57 | −1 | 3 |
| Uzbekistan | 2 | 0 | 2 | 29 | 36 | −7 | 2 |
| July 1 | Sri Lanka | 34–29 | Uzbekistan | Anglican High School, Singapore |
| July 2 | Philippines | 2–0 | Uzbekistan | Anglican High School, Singapore |
| July 3 | Sri Lanka | 22–28 | Philippines | Anglican High School, Singapore |
| Quarter finals | Semi finals | Final | ||||||||
| July 3 | ||||||||||
| Thailand | 34 | |||||||||
| July 4 | ||||||||||
| India | 19 | |||||||||
| Thailand | 13 | |||||||||
| July 3 | ||||||||||
| Japan | 33 | |||||||||
| Japan | 33 | |||||||||
| July 4 | ||||||||||
| Sri Lanka | 2 | |||||||||
| Japan | 33 | |||||||||
| July 3 | ||||||||||
| China | 32 | |||||||||
| China | 34 | |||||||||
| July 4 | ||||||||||
| Indonesia | 13 | |||||||||
| China | 33 | 3rd & 4th place | ||||||||
| July 3 | ||||||||||
| Korea | 23 | |||||||||
| Philippines | 21 | Thailand | 30 | |||||||
| Korea | 32 | Korea | 34 | |||||||
| July 4 | ||||||||||
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