Successful inbounds plays use simple alignments, well-timed screens and a clear first option to create an easy shot or at least a safe catch. Baseline and sideline out-of-bounds situations are among the best scoring chances in basketball because the offense controls the timing while the defense has to guard both the ball and the players. Teams that run a few sets well, with a safety outlet built in, turn these moments into points instead of turnovers.
Why Inbounds Plays Matter
A typical game includes many inbounds situations: after made baskets, fouls, violations, timeouts and balls knocked out of bounds. Baseline out-of-bounds plays, often called BLOBs, happen close to the basket, where a single well-set screen can produce a layup or open shot. Sideline out-of-bounds plays, or SLOBs, often matter most late in close games, when the offense needs a safe catch or a quick score. Good teams treat these moments as planned scoring opportunities.
Baseline Inbounds Alignments
| Set | Alignment | Typical actions |
|---|---|---|
| Box | Four players in a square around the lane, two on the blocks and two at the elbows | Back screens for a cutter, screens for a shooter popping to the corner |
| Stack | Players lined up close together near one block | Players break out in different directions at once to confuse the defense |
| Line | Players in a line across the lane or free throw line | Peel-off cuts and staggered screens |
| Diamond or 1-3-1 | One player near the basket, three across, one out top | Screens for the inbounder after he passes in |
Each set should have a primary option, such as a layup or corner three, a secondary option if the first is covered, and a safety outlet, usually a guard popping out to the perimeter to receive the ball if nothing else is open.
Sideline Inbounds Plays
Sideline plays start farther from the basket, so the first goal is often a safe catch. Once the ball is inbounded, many teams flow directly into their half-court offense. Common sideline actions include:
- Back screen for a lob: A player screens the defender of a teammate who cuts to the basket for a lob pass.
- Flare screen for a shooter: A screen away from the ball frees a shooter on the perimeter.
- Screen for the best ball handler: Late in games, a simple screen to free your best player ensures he gets the ball.
- Screen the screener: After one player screens, another screens for him, creating a second open option.
- Inbounder return: The inbounder passes in and immediately receives a screen to get the ball back.
How to Design an Inbounds Play Step by Step
- Choose a simple alignment. Start with a box or stack that your players can learn quickly.
- Pick a primary target. Decide whether the play is designed for a shooter, a cutter or a post player.
- Add a screen. Use at least one screen to free the primary target, with clear timing.
- Build in a second option. The screener often becomes open after the screen, either rolling or popping.
- Always include a safety. A guard should pop out to receive the ball if the first options are covered.
- Use a start signal. Many teams start the play when the inbounder slaps the ball, so everyone moves together.
- Practice against defense. Run the play against man-to-man and zone so players learn how it changes.
Inbounding Against Man-to-Man vs Zone
Many teams defend inbounds plays with a zone, especially under their own basket, even if they play man-to-man the rest of the game. Your plays should work against both.
- Against man-to-man: Use screens, especially back screens and screens for shooters. Defenders who fight through screens often leave gaps.
- Against zone: Place shooters in the gaps of the zone, screen the zone defenders from the inside and look for quick passes to the short corner or high post.
- Identify the defense early: The inbounder and point guard should recognize the defense and call the right play.
Defending Inbounds Plays
Understanding how to defend inbounds plays also helps you design better ones. Defensive teams often guard the inbounder aggressively to block his view, switch screens to avoid open cutters, and sit in a zone under their own basket to protect the rim. Offenses can counter by using quick screens, involving the inbounder after the pass and keeping a guard ready as a safety. When you scout an opponent, note how they defend inbounds plays so you can call the right set.
The Inbounder’s Role
The inbounder is often the most important player on an inbounds play. Choose a player who passes well, sees the floor and stays calm under pressure. The inbounder should read the defense, give the signal to start, pass firmly and accurately, and then step in quickly. On many baseline plays, the inbounder becomes a scoring option after the pass, since his defender often turns to watch the ball.
Late-Game Inbounds Plays
Late in close games, inbounds plays carry extra pressure. Keep them simple and make sure your best players are involved. If you need a quick shot, design the play so the catch happens in shooting position. If you are protecting a lead, focus on a safe catch by your best free throw shooter. Know how many timeouts you have and whether your league allows advancing the ball after a timeout, since that can change the play entirely.
Rulebook note: The inbounder generally has five seconds to release the ball, may not step onto the court before releasing it and, in most situations after a violation or foul, must inbound from a designated spot. After a made basket, the inbounder can usually run along the end line. The NBA allows a team to advance the ball to the frontcourt after a timeout in the final two minutes of the fourth quarter and overtime, and other levels have their own rules. Check the NBA, NCAA, FIBA or NFHS rulebook for your league.
Inbounds Play Drills
- Walk-through reps: Run each play slowly without defense until everyone knows their spots and timing.
- Live reps against zone and man: Alternate defenses so players learn their reads.
- Five-second pressure drill: A defender guards the inbounder aggressively while a coach counts, forcing quick decisions.
- Late-game scenarios: Start scrimmages with a sideline inbounds play and a few seconds left to practice under pressure.
Common Inbounds Mistakes
- Complicated plays. Too many moving parts lead to confusion and five-second violations.
- No safety outlet. Without a safe option, a covered play often ends in a turnover.
- Poor timing. Players who move before the signal tip off the defense.
- Lazy screens. Screens that do not make contact fail to free anyone.
- Weak passes. Soft or looping inbounds passes are easy to steal.
- Forgetting the inbounder. The inbounder is often left open after passing in.
Frequently Asked Questions
What is a BLOB and SLOB in basketball?
BLOB stands for baseline out of bounds, when the ball is inbounded from under the offensive basket. SLOB stands for sideline out of bounds, when the ball is inbounded from the sideline.
How long does the inbounder have to pass the ball?
At most levels, the inbounder has five seconds to release the pass. Failing to do so results in a turnover.
What makes a good inbounds play?
A simple alignment, a clear primary option, well-timed screens, a secondary option and a safety outlet. The best plays are easy to learn and work against both man-to-man and zone defenses.
