Tactics · Offense · 7 min read

Split Action: how it works, how Swish & Dunk simulates it and which players it needs

By Hiroshi Andrea · October 9, 2026 · Last updated: October 10, 2026

Split action is what happens when the ball goes into the post and the two guards refuse to stand still. The passer and a teammate screen for each other away from the ball, one curls or flares, the other slips or pops, and the big with the ball finds whoever is open. It is the off-ball engine of modern NBA offenses and, in Swish & Dunk, the system that rewards moving without the ball more than any other. This guide explains how it works on a real court, exactly how the match engine simulates it and which skills your cards need.

What is split action?

"Splitting the post" is an old idea. In the triangle offense of Tex Winter and Phil Jackson, after the entry pass to the post the two nearest perimeter players would cross and screen for each other, creating a cut and a shot at the same time. Steve Kerr played in that system as a Chicago Bulls guard, and when he took over the Golden State Warriors he made split action one of their signatures.

With Stephen Curry and Klay Thompson the action became almost impossible to guard: two of the greatest shooters ever screening for each other, with a passing big at the elbow or in the post ready to hit the open man. If the defense chased Curry, Thompson was open; if it switched, Curry slipped to the rim. Today split action is part of almost every NBA playbook.

How split action works on the court

• Entry to the big. The ball goes to the post or the elbow, where the big can see the whole floor.
• Screen the screener. The passer and a teammate screen for each other: one curls toward the ball or flares to the corner.
• Slip or pop. If the defense switches or helps, the screener slips to the rim or pops to the arc.
• Handoff or pass. The big hands the ball off, hits the curl or the slip, or scores if nobody helps.

The defense has to deal with two shooters moving at the same time while watching a big with the ball. Every mistake in communication becomes an open three.

How Swish & Dunk simulates split action

The Swish & Dunk match engine simulates every possession as a chain of decisions: who handles the ball, which action he runs, who shoots and from where. These are Split Action's levers compared with the neutral value of 1.00:

Off-Ball Movement becomes a shooting skill

The off-ball screen lever works in two places. When the engine picks who receives a kick-out, Off-Ball Movement normally weighs 0.7 alongside Catch and Shoot and Three-Point Shot; in Split Action it weighs 1.05, so the players who move best get the ball more often. Then the shot itself gets easier: +5 percentage points for every full point of the lever above 1.00, scaled by Off-Ball Movement. At ×1.50 a guard with Off-Ball Movement 80 gets about +2.0 points on every catch-and-shoot shot and every pick-and-pop jumper; one with 60 gets about +1.5. It is the largest shooting bonus that any tactic gives in a set offense.

More kick-outs, more assists

For an illustrative point guard with passing ratings of 75, kick-outs rise from about 21% of his plays in a balanced offense to about 25%. In the tactics lab threes are 47.4% of attempts and 68.8% of baskets are assisted, among the highest shares in the game together with the Princeton and the Motion Offense.

The ideal split action players and the skills to look for

Split Action is built for shooters who never stop moving and a big who passes. The skill names are the ones on the player cards.

Off-Ball Movement is easy to overlook when you buy cards on the market: in Split Action it is worth as much as a shooting rating. The player skills guide explains every skill in detail.

Split Action matchups

Measured in the tactics lab (October 2026) with the same identical teams, the same "fair mix" opponent and the same 1,404 games per matchup as the original study, margin of error about ±2.6 points. The raw data of the seven new offenses is published as summary-new-offenses.json.

Split Action has the narrowest range of the new offenses: it never drops below 48.4%. Its best matchups are the defenses that sit back in the paint and leave the perimeter to the shooters (Drop, Pack Line) and, thanks to its ball movement, the trap. Its worst are exactly the answers real coaches use against screening shooters: a zone, which guards areas instead of players and does not care about screens, and a switching defense, which simply exchanges assignments. The three rules behind every matchup are in the matchup section of the study.

Which defense to pair with split action

• Switch-Everything: mobile guards and wings who screen for each other can also switch on defense.
• Man-to-Man: the neutral choice when your perimeter defenders are not versatile enough to switch.
• No-Middle: protects the paint a little more if your big is a passer rather than a rim protector.

Common split action mistakes

• Buying shooters who do not move. Three-Point Shot without Off-Ball Movement wastes most of the bonus.
• A big who cannot pass. The entry pass is pointless if the ball never comes back out.
• Using it against a zone. Screens do not bother a zone: attack it with the Post Hub, Run and Gun or the Triangle.

Related offenses

• Motion Offense: screening away from the ball as a principle, without the post entry.
• Triangle Offense: where splitting the post was born.
• Spain Pick-and-Roll: the off-ball screen added to a pick-and-roll.
• 5-Out Offense: five shooters spaced around the arc, with fewer screens.

Frequently asked questions

What is split action in basketball?

Split action starts with a pass into the post or the elbow. The passer and another perimeter player then screen for each other away from the ball: one curls or flares off the screen, the other slips to the rim or pops, and the big with the ball hits whoever the defense leaves open.

Which team made split action famous?

The Golden State Warriors of Steve Kerr, with Stephen Curry and Klay Thompson screening for each other around a passing big. The action has deep roots in the triangle offense, which Kerr played in as a Chicago Bulls guard under Phil Jackson.

How do you defend split action?

By switching, or by not chasing screens at all. In the Swish & Dunk tactics lab its worst matchups are Match-Up Zone (48.4%), Full-Court Press (48.9%) and Switch-Everything (49.1%), over 1,404 games per matchup. Defenses that chase screens and sit back, like Drop Coverage (54.8%) and Pack Line (53.2%), suffer most.

What skills matter most for split action in Swish & Dunk?

Off-Ball Movement above all: it decides how often a player is chosen for the catch-and-shoot and how much the screens help his shot. Then Catch and Shoot and Three-Point Shot on the guards, and Pass Accuracy and Post Offense on the big who receives the entry.

Does split action shoot a lot of threes in Swish & Dunk?

Yes: threes are 47.4% of its shots in the tactics lab, among the highest shares of the fifteen offenses, and 68.8% of its baskets are assisted, close to Princeton and Motion. Its off-ball screen lever of ×1.50 is the highest in the game.

Split Action is one of fifteen offensive systems in Swish & Dunk: the complete tactics guide compares them all, together with the eight defenses. To see how this basketball manager game compares with the others, read our ranking of the best basketball manager games, and the complete guide to Swish & Dunk covers everything else.

Sources

• Steve Kerr — Wikipedia
• Stephen Curry — Wikipedia
• Triangle offense — Wikipedia

Last updated: October 10, 2026