Choosing a tennis racquet is a four-decision problem, and they are not equally important. Head size first, then weight, then string pattern, then stiffness — in that order. Everything else you will read about — beam shape, layup names, the technology stickers — is downstream of those four, and mostly marketing for them.
Step 1: head size
Measured in square inches, and the biggest lever on forgiveness. A bigger head has a bigger sweet spot, more power and less precision. A smaller head has the opposite.
| Head size | Character | Who it suits |
|---|
| 105–115 sq in | Oversize: maximum forgiveness and free power | Beginners, seniors, short swings |
| 100 sq in | Mid-plus: the modern all-court standard | NTRP 3.0–4.5, most club players |
| 97–98 sq in | Mid: control and feel, less margin | NTRP 4.0+ with consistent contact |
If you take one thing from this page: 100 sq in is right for most people. It is the default for a reason, and the players who should deviate from it know why they are deviating.
Step 2: weight
Heavier frames are more stable and produce a heavier ball; lighter frames are easier to swing when you prepare late. The common mistake is buying too light, because a light racquet feels better in the shop and worse in the third game of a match against someone who hits hard.
Under 10 oz strung is a beginner or senior spec. 10.5–11.3 oz covers almost all club tennis. Over 11.5 ozis a player's frame. Remember that unstrung weights run about 0.5–0.6 oz lighter than strung ones, so compare like with like.
Step 3: string pattern
16x19 is the open pattern: the mains slide and snap back, which generates topspin. 18x20 is dense: flatter, lower, far more predictable, and longer string life. Nine club players out of ten want 16x19.
Step 4: stiffness (RA)
The spec almost nobody checks and the one that decides whether you are still playing in six months. Under RA 62 is soft and comfortable; above RA 67 is stiff and powerful. The Clash 100 v3 at RA 54 and the Pure Drive at RA 69 are the two ends of the mainstream range, and they are otherwise nearly identical on paper.
The decision path, by level
NTRP 2.0–3.0:105–115 sq in, under 10 oz, strung, and cheap. You are buying forgiveness and nothing else. Start at beginner rackets.
NTRP 3.5–4.0:100 sq in, 10.5–11.3 oz, 16x19. Then choose your stiffness: soft if your arm has ever complained, stiff if you want free depth. See intermediate racquets.
NTRP 4.5+:97–100 sq in, 11.3–11.7 oz, and now the 16x19 versus 18x20 question becomes a real one about your game style rather than your level. See advanced rackets.
Grip size is a fifth decision, and it is not optional
Head size gets the attention; grip size causes the injuries. Too small and you squeeze, which is a direct route to tennis elbow. Most adult men land on 4 3/8" and most adult women on 4 1/4", but measure properly — the grip size guide has the test.
One practical note: you can always build a grip up with an overgrip or a heat-shrink sleeve, and you can never make one smaller. If you are genuinely between sizes, buy the smaller one.
Things that matter less than the shop will suggest
The technology names.Auxetic, FreeFlex, VDM, REVA — these are real engineering, but they are the mechanism by which a frame achieves its published stiffness and feel. The published numbers already tell you the result.
The colour and the pro endorsement. No professional plays the retail version of the frame with their name on it. Their frames are custom-weighted, often an older mould painted to look current.
Swing weight, until you are advanced. It matters enormously, but it is also the spec you can adjust yourself with a few grams of lead tape. Get the other four right and tune this later.
Demo if you possibly can
Specs predict most of how a racquet behaves and none of how it feels. Two frames with identical published numbers can feel completely different, and feel is what you will notice on court. Most specialist retailers run demo programmes; a club with a coach usually has demos too. Everything on this site is an attempt to narrow the shortlist so that demoing three frames tells you something, instead of demoing thirty.
And if you cannot demo: buy in the middle of the window for your level, string it properly, and give it six sessions before you judge it. Almost every racquet feels wrong for the first two.