Tacticall levels · U12+

BLOB Box Set PlaysBasketball Tactic

Baseline out of bounds is the closest thing basketball has to a free possession at the rim — the ball starts four feet from the basket and the defense can't pressure the inbounder. The box set is the classic BLOB alignment: two players on the blocks, two at the elbows, forming a box in the lane. From that one picture you can screen for a layup, a three, or a safe entry without the defense knowing which is coming.

The signature box action is screen-the-screener: a cross screen frees a big under the rim, and the player who set that screen immediately receives a down screen and pops to the ball. Defenses that survive the first screen rarely communicate through the second, which is why the sequence still scores at every level.

Objective

Turn baseline out-of-bounds possessions into layups and open jumpers using one box alignment with layered screening options and a reliable safety.

Setup

Area

Half court, ball out of bounds on the baseline

Players

5 offensive players; add 5 defenders once the pattern is clean

Equipment

1 ball

Duration

10–12 minutes per install block

How it works

  1. 1

    Set the box

    Your best passer (usually 3) takes the ball out. 5 and 4 occupy the blocks, 1 and 2 the elbows, all facing the inbounder. Everyone holds until 3 slaps the ball — the universal trigger.

  2. 2

    Option 1 — Screen the screener

    On the slap, 2 drops from the ball-side elbow and cross-screens for 5, who cuts low across the lane to the ball-side block for the layup pass. A beat later, 4 down-screens for 2, who pops to the top of the key. First look rim, second look the pop-out jumper.

  3. 3

    Option 2 — Shooter special

    Same start, but 1 and 4 set a weak-side stagger for 2, who curls off both screens to the corner for a catch-and-shoot three. 5 flashes ball-side as the decoy that pins the help low.

  4. 4

    Safety and re-entry

    If both options are denied at the five-second count, 1 sprints to the ball-side wing as the safety. 3 hits 1, steps inbounds to the weak-side corner, and the team flows into half-court offense — never burn a timeout to rescue a denied BLOB.

  5. 5

    Vs zone defense

    Against a 2-3 zone, keep the box but overload: 5 screens the back line's middle defender while 2 slides to the short corner. 3 reads high-low — the short-corner catch forces the back line to commit, opening 5 sealing inside.

Coaching points

Variations

Box flat counter

Start in the box, then drop all four players to a flat line along the baseline before the slap. The late shape change scrambles pre-switched assignments and opens the elbow for a back screen lob.

Same set, three calls

Number the options — 'Box 1', 'Box 2', 'Box 3' — and run all three from an identical start; scouting becomes useless when every call opens the same way.

Build it in Coach Board

Draw the box once in Coach Board, then duplicate the board for each numbered call and animate them separately — cross screen first, down screen a beat later. Slow the playback to half speed so players see why the second screen gets open, then share the set as a link before game day.

Open Coach Board

Frequently asked questions

What does BLOB mean in basketball?

BLOB stands for baseline out of bounds — a possession that restarts with a throw-in from under your own basket. Because the ball starts so close to the rim, well-drilled BLOB plays are among the most efficient scoring possessions in the game.

Why use a box alignment for BLOB plays?

The box puts two players on the blocks and two at the elbows, so every screening angle — cross screens, down screens, back screens — is available from one starting picture. Several different calls look identical for the first two seconds, which makes the set hard to scout.

Related basketball drills & tactics

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Animate this tactic for your team.

Set it up once on a Coach Board tactical board, press play, and share the animation with your squad in one click.