2torial #0543: Learn2 Understand Basketball (Continued) Know the times and measures Basketball games are timed events that last approximately two hours. Each game is divided into two halves, and at the beginning of each half is a jump ball (see Keywords). A half-time period, usually about 15 minutes, divides the two halves. If the score is tied at the end of regulation play, the game will be extended to over-time. Basketball games can't end in a tie. A regulation basketball game involves the following elements: One basketball court: Professional courts measure 94 feet by 50 feet (28 meters by 15 meters). High school courts are about six feet shorter. Indoor courts are usually made of wood and outdoor courts are generally asphalt or cement.   One basketball: Basketballs are made from a variety of materials, most often rubber or leather.   Two baskets: A basket consists of a rim, a net, and a backboard, and one stands at each end of the court. The rim is bolted into the backboard 10 feet (3 meters) above the court. The modern basket goes by many names (a goal, a hoop, a bucket, and a hole--to name a few). Backboards are usually made of glass, wood, fiberglass, or metal.   Two or three referees: The referees-- distinguished by their black- and white-striped shirts--are responsible for upholding the rules of the game. For their hard work they usually get screamed at and abused by players, coaches, and fans... all game long.   Ten players: On each team there are (usually from shortest to tallest) two guards, two forwards, and one center. The same five players cover both defense and offense. -end- Learn More! or All steps at once (printable version)