The Foul Line: For all courts the “foul line” distance is 15 feet from the foul line to the front of the backboard. This measurement is commonly confused as from the center of the basket and front of the rim. The Key (the Lane): The Key (also called the Lane) is different for Professional (NBA) and College/High School.
The foul line is 15 feet from the backboard for junior high school players and older. To teach proper shooting techniques, the Biddy League, for youth players, allows 7 to 8 year old players to use an 8-foot high basket. They use a free throw line that is 12 feet 10 inches from the backboard.
Jump circles – There are 3 circles on the court: a center circle (CC) at half-court and a free throw circle (FTC) around the free throw line at each end. Free throw line (FT) – The line 15 feet from the basket that cuts the free throw circle in half.
Court Dimensions: Professional NBA and College Basketball court is 94 feet (29 m) by 50 feet (15 m). International Basketball the court 28 meters (92 ft) by 15 meters (49 ft). High school, and Junior High court 84 feet (26 m) by 50 feet (15 m). The Foul Line: For all Courts, The foul line distance is 15′ from the foul line to the front of the backboard and 18′ 10″ from the baseline.
The distance of the free-throw line is measured from a point on the floor directly below the backboard. At the junior high, high school, NCAA, WNBA and NBA levels, the free-throw line is 15 feet ...
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For 9th-12th graders, a 22’2” arc is preferred, but if this line is not on a court the next available line under 22’2” is recommended. Distance of Free-Throw Line: 7-8 and 9-11 year-olds should take free throws 14 feet from the basket to develop proper form and increase success.
The free throw distance for young players (up to 4th grade) is flexible. Coaches should have players shoot from the maximum distance at which they can shoot a free throw with good form. In some leagues, players shoot from the regulation 15-foot free throw line, but in other leagues a line is marked on the floor about 2 feet closer.
Gasers or Line Runs In this drill, all the players line up at one end of the court. On the coach’s, command, all players proceed to run: 1) as far as the nearest foul line and back, 2) to ½ court and back, 3) to the furthest foul line and back, and 4) to the opposite end of the court and back.