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The 1–3–1 defense and offense is a popular strategy used in basketball. The 1-3-1 zone defense is a defensive basketball formation. It was originally utilized by Hall of Fame coach Clair Bee. This defense is named for its formation since there is one defender at the point, three defenders at the free throw level, and one defender at the base line. The main focus of this defensive strategy is to force turnovers. This is done by using quick, pestering defense and anticipating any passes to attempt a steal. A two man trap is implemented in this defense. The defense attempts to guide the ball handler towards a corner and quickly close in and double team the offensive player creating a trap with the defenders and side lines. This trap often forces the ball handler to get rid of the ball prematurely taking the offense out of their set up. This often results in poor passes or shots. These poor passes are meant to be taken advantage of in this defense so the weak side defenders must anticipate passes to create turnovers. A form of this player formation is also sometimes effective in ice hockey, as used by the NHL's Tampa Bay Lightning team in the 21st century, and said to have been pioneered in ice hockey as a form of neutral zone trap by the 1990s-era New Jersey Devils. == Defense == The defensive usage of the 1-3-1 is mostly used to create turnovers, not for protecting the paint, due to only having one player down low. They usually have two guards to double team the ball carrier. Another variation of the 1-3-1 defense is the full court press version. The lead guard will pressure the ball in the backcourt, and also can shade over to the side and form a 2-man trap with a defensive player in the 3-set when an offensive guard tries to bring up the ball down the sideline. One effective press-break against the 1-3-1 full court press is to have either the power forward or the center to flash to midcourt and then quickly pass the weak side guard running down the sideline, not allowing the trap to be formed. There are multiple ways to approach defense in the sport of basketball. Typically they are divided into man defenses and zone defenses. The 1-3-1 zone defense is a zone defense. It falls under this category because each player guards a specific zone within the formation. This defense is named for its formation. A picture of the formation is shown on the right. In basketball positions are numbered from one to five. One and two are guards, three and four are forwards, and five is the center in a typical basketball lineup. Guards are quick and typically are good ball handlers and shooters. Forwards usually are the most athletic and are typically taller than the guards. The center is the tallest player and specializes in close vicinity to the basket. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「1–3–1 defense and offense」の詳細全文を読む スポンサード リンク
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