3x3 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.
Uzbekistan lost the match by default against Philippines as all but 1 of its players were fouled out. As Uzbekistan were ahead 28–26 when the game was called off.