A strong team foundation, such as basketball, is the process of selecting the appropriate players for all playing positions scientifically and objectively. This study aims to identify the key technical and physical determinants as well as set standardized tests necessary for selecting and directing players to different play positions in basketball. The data was collected by a survey for basketball female players under 16 years old of the top three places in the Cairo league season 2022/2023. The results revealed that the key technical determinants of position 1 were dribbling skills and ball control, passing skills, outside shots, and defensive pressure; position 2 was outside shots, moves without the ball, dribbling skills, and ball control, defensive pressure; position 3 was inside and outside shots, defensive rebound; position 4 was inside and outside shots, offensive and defensive rebound; and position 5 was inside shots, offensive and defensive rebound, and block shots. Furthermore, the key physical determinants for position 1 were agility, acceleration, legs and arms power, speed “short distance", and deceleration; position 2 was acceleration, legs and arms power, speed “relatively long distances", and agility; position 3 was legs and arms power, speed “relatively long distance", and agility; position 4 and 5 were legs power and arms strength. The appropriate tests to assess these determinants: Dribble Skill with its entire Types, Speed and Accuracy Passing, Spot Up Shooting, Shooting From Close to the Basket, Rebound Shooting Task, Moving Without the Ball, Defense Against Dribbler, Defensive Rebound, Block Shots, Illinois Agility, 10-m, 20-m, and 28-m Sprint, 5-0-5 m Sprint, Vertical Jump, Push Up, and Pushing a Medicine Ball. These tests were seven-level scale ranging from excellent to very poor.