Tennis Technique: Fundamentals Across Every Stroke

This section holds what does not belong to a single stroke. The kinetic chain, balance, the relationship between grip and swing path, unit turn, contact point, and the handful of principles that hold across the forehand, backhand, serve and volley alike. Everything shot-specific lives in its own section; this is the material that would otherwise be repeated in all of them.

What is genuinely common across strokes

Less than instructional writing usually implies, but not nothing. Power comes from the ground upward through a sequence — legs, hips, trunk, shoulder, arm, and a stroke that starts with the arm forfeits most of it. Balance at contact determines how repeatable a shot is. And the body initiates the backswing on every stroke, with the arms guiding rather than pulling. Those three hold everywhere.

What does not transfer, and gets treated as though it does

Grip conventions, stance choices, follow-through shape and swing plane are all stroke-specific and often player-specific. Copying them from a professional whose body, grip and timing differ produces a stroke that works in isolation and fails under pressure. The distinction this section tries to hold is between a principle and an idiosyncrasy. The first is worth adopting, the second belongs to the player who owns it.

Analysis, and its limits

Frame-by-frame video is the most useful diagnostic available to a club player and the most commonly misused. It shows positions clearly and sequence poorly, so a player comparing a single frame of their forehand against a single frame of someone else's will usually change the wrong thing. The comparison worth making is of the order in which things happen, not of how they look at one instant.

Modern versus classical, which is mostly about equipment

The technique changes of the last few decades followed from racquet and string technology rather than from insight. Lighter, stiffer frames and polyester strings made heavy topspin available at speeds that would have been uncontrollable with wood, and grips, stances and follow-throughs moved to exploit it. Articles here that describe a change as modern are describing an adaptation to equipment, not a discovery.

The order in which to change things

Sequencing matters more than the content of any single fix, because changes interact. A grip change moves the contact point, which changes where the feet have to be, which changes the timing of the turn, so a player who changes grip and footwork in the same fortnight has no way of knowing which change caused what.

The workable order runs from the outside in: equipment first because it is fastest to rule out, then arrival, then grip, then swing path, then the finish. A finish is the hardest thing to change deliberately and the most likely to correct itself once the earlier links are right, which is why players who start there rarely finish anything.

Expect a change to feel wrong for a few weeks and to make results worse before it makes them better. That period is the whole cost, and it is why one change at a time is not a counsel of patience but the only way to know whether a change worked.

Filming yourself, and what to look at

A phone is the most useful diagnostic most players have, and the most commonly misused. Two angles answer nearly everything: from directly behind, in line with the player, which shows swing path and contact height; and side-on, which shows where contact happens relative to the body. A third angle rarely adds a finding the first two missed.

Frame rate matters far more than resolution. At 30 frames per second the ball travels several metres between frames, so contact itself is usually not captured at all, which is precisely the moment worth seeing. A slow-motion setting at a lower resolution is more informative than sharp footage of the wrong instants.

The trap is comparing one frame of your own stroke against one frame of a professional's. Stills show position clearly and sequence badly, and nearly every technical fault worth fixing is a sequencing fault. Two players can pass through an almost identical contact position having arrived there by different routes, and it is the route that decides whether the shot repeats.