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Box Set Baseline Out of Bounds: Screen the Screener

In shortThis baseline out-of-bounds (BLOB) play starts in a Box formation and uses a screen-the-screener action: 5 sets a cross screen for 4, then 3 screens down for 5. The inbounder gets three options in order: 4 at the rim, 5 at the elbow, and 2 as the safety outlet.
Box baseline out of bounds diagram: cross screen, screen the screener, and a safety release
Box baseline out of bounds diagram: cross screen, screen the screener, and a safety release

The Box formation

Four players form a box in the lane: two on the blocks and two at the elbows. The inbounder stands on the baseline to one side of the basket. The Box is the most common BLOB alignment at every level because it puts all four players near the basket, which is where the defense least wants them.

How to run it

  1. Cross screen. The 5 on the ball-side block screens across the lane for the 4 on the opposite block.
  2. Cut to the ball-side block. 4 cuts over the top of the screen to the ball-side block. This is the first option: a layup.
  3. Screen the screener. The 3 at the ball-side elbow screens down for 5, who just set the cross screen. 5 pops to the elbow. This is the second option: a short jumper.
  4. Safety. The 2 at the other elbow drifts out to the wing as the safety outlet. If the first two options are covered, the inbounder gets the ball to 2 and the team runs its offense.
  5. Inbounder reads it in order. Rim, elbow, safety. Every kid has one job.

Why screen-the-screener works

Defenders guard the first screen. They almost never expect the player who just set it to receive a screen himself. By the time 5's defender realizes a second screen is coming, 5 is already popping to the elbow.

For youth teams the bigger advantage is clarity. Each player has a single assignment and the inbounder reads in a fixed order. There is no improvising.

Coaching points

Frequently asked questions

BLOB stands for baseline out of bounds. It is any play run when the offense inbounds the ball from under its own basket, usually after a foul or a ball out of bounds on the baseline.

Screen-the-screener is an action where a player sets a screen and then immediately receives a screen from a teammate. It exploits the fact that defenders focus on the first screen and lose track of the screener.

The best BLOB play is one where every player has a single job and the inbounder reads options in a fixed order. This Box screen-the-screener set fits that description, which is why so many youth programs run a version of it.

Related

Trevor Walton
Trevor Walton

Boys Program Director, MN Rush. Varsity assistant for Rogers Boys Basketball and former head coach at North Branch. Founded MN Rush in 2017. boys@mnrush.com

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