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Improve8 min readยทUpdated 2026-07-22

Doubles Poaching and Formations: I-Formation & Australian Explained

Doubles at any serious level is decided at the net, not the baseline โ€” and the net player's biggest sin isn't poor volleying, it's standing still. Poaching, the I-formation and the Australian formation are all answers to the same underlying problem: a predictable net player is a wasted resource. Here's what each actually solves and when to use them.

Why standing still at net is a missed opportunity

A net player who only reacts to balls hit directly at them is giving the opposing team a free, predictable target: hit crosscourt, away from the net player, every time. Poaching โ€” actively crossing to intercept that crosscourt ball โ€” takes that predictability away and turns the net player into a genuine threat instead of a spectator.

When to poach

The best poaching opportunities come off a weak, floating, or short return โ€” anything that gives you time to move and a comfortable volley height. Poaching off a hard, low, well-placed return is much riskier since you're reaching for a difficult volley while also vacating your own side of the court.

Poach more often on important points specifically because it puts pressure on the returner to change their target โ€” even poaches you don't execute perfectly plant doubt that pays off on future points.

Signal it to your partner

A poach with no communication just creates confusion and open space โ€” if the net player crosses without warning, the server has no idea they need to cover the vacated side. Standard practice is a hand signal behind the back before the serve (e.g. fingers down for staying, a fist for poaching) so the server knows and can adjust their own coverage.

I-formation: solving the predictable-net-player problem

In I-formation, the net player crouches on the centre service line right before the serve instead of standing in their usual alley-side position, and only breaks left or right after the serve is hit. This prevents the returner from simply aiming crosscourt away from a stationary target, since the net player's eventual side isn't known in advance.

It's most useful against a returner who's been picking apart a predictable net position, or on important points where the element of surprise is worth the extra communication and timing required.

Australian formation: taking away the crosscourt return

In Australian formation, the server's partner stands on the same side as the server rather than the opposite box, which removes the returner's usual crosscourt reply โ€” hitting crosscourt would now go straight at the server's partner. This forces the return down the line, into the space the server vacates after serving.

Use it against a returner with a clearly stronger crosscourt return than down-the-line shot, or to simply break a returner's rhythm when they've been comfortably picking apart a standard formation.

Getting started with these tactics

  • Start with basic poaching and signalling before adding I-formation or Australian โ€” communication is the foundation both variations depend on.
  • Practise poaching off fed short balls before trying it live, to build the timing and confidence to actually pull the trigger in a real point.
  • Use I-formation and Australian sparingly at first (on big points) rather than as your default โ€” they work partly because they're a surprise, and lose effectiveness if overused.

Frequently asked questions

What is poaching in doubles?+

Poaching is when the net player crosses over to intercept a return or rally shot that would normally go to their partner, cutting off the crosscourt angle and finishing the point at the net. It's an active, planned move โ€” not just reacting to a ball that happens to come near you.

What is the I-formation in doubles?+

The net player crouches on the centre service line (instead of the usual position near the alley) right before the serve, so the returner can't predict which side they'll move to. Both players then split โ€” one covers the poach side, one covers the other โ€” after the serve is struck. It's designed to prevent the returner from simply aiming away from a stationary net player.

What is the Australian formation?+

The server's partner stands on the same side of the court as the server (rather than the opposite service box), forcing the returner to hit down the line into the server's now-open crosscourt path instead of the usual crosscourt return. It's used to take away a returner's favourite crosscourt reply.

Want to sharpen the volleys you'll actually be hitting after a poach?

Read: Tennis Grip Guide โ€” Continental for Volleys โ†’