Walk into any tennis shop and you will face a wall of rackets that look almost identical: same length, similar colours, numbers printed on the throat. Yet two frames that look alike can feel completely different on court. The right racket makes the game easier, protects your arm and helps you improve; the wrong one fights you on every stroke.
This guide explains the handful of specifications that actually matter, what each one does to the ball, and how to combine them into a racket that suits your game — not the game of the player on the poster.
Start with an honest look at your game
Before comparing specs, answer three questions:
- How long and fast is your swing? Long, fast swings generate their own power and need a racket that controls it. Short or compact swings benefit from a frame that adds power.
- How often do you play? Someone who plays twice a week can handle a heavier, more demanding frame than someone who plays twice a month.
- Any arm, wrist or shoulder history? If yes, comfort comes first: moderate weight, a softer frame and softer strings matter more than anything else.
Keep those answers in mind — every specification below is a trade-off, and your answers decide which side of the trade-off you want.
Head size: forgiveness versus precision
Head size is the area of the string bed. It is usually printed in square inches (in²) and sometimes in square centimetres (cm²).
| Head size | Feel | Best for |
|---|---|---|
| 93–97 in² (600–625 cm²) | Precise, controlled, smaller sweet spot | Advanced players with full, consistent swings |
| 98–100 in² (630–645 cm²) | Balanced mix of control and forgiveness | Most intermediate and many advanced players |
| 102–110 in² (660–710 cm²) | Large sweet spot, easy power | Beginners, compact swings, doubles players at the net |
| 110 in² and up | Maximum help, less control | Very short swings, older or returning players |
A larger head acts like a trampoline: the strings deflect more, so the ball leaves with more speed for the same swing, and off-centre hits are punished less. The cost is precision — on a big swing, a large head can send the ball long. If you are unsure, 100 in² is the safe middle ground that suits the widest range of players.
Weight: stability versus manoeuvrability
Racket weight is listed either unstrung or strung; strings, a grip and a dampener add roughly 15–20 g. Compare like with like.
- Light (under 270 g unstrung): easy to swing and to manoeuvre at the net, but less stable against heavy balls. The racket "gives way" on fast shots, which can send vibration into the arm.
- Medium (270–300 g): the sweet zone for most club players. Enough mass to stay stable, light enough for a full swing late in a match.
- Heavy (over 300 g): very stable and solid on contact, absorbs the opponent's pace and gives plow-through. Demands good technique, timing and fitness.
Rule of thumb: choose the heaviest racket you can swing comfortably for a whole match — not just for five minutes in the shop. Mass is your friend for stability and comfort, as long as it does not slow your swing.
Balance: where the weight sits
Two rackets of the same weight can feel completely different because of balance — where the weight is distributed along the frame. Balance is measured in points (1 point = 1/8 inch) from the middle, or in millimetres from the butt cap.
- Head-light (HL): weight towards the handle. Quick to swing and manoeuvre, common on heavier rackets. Typical balance: 315–325 mm.
- Even balance: a neutral compromise, around 325–335 mm.
- Head-heavy (HH): weight towards the tip. Adds power and stability to light rackets, which is why most lightweight frames are head-heavy. Typical balance: 340 mm and above.
Weight and balance work together. A light, head-heavy frame and a heavier, head-light frame can feel equally "fast" in the hand, but the heavier one will be more stable on contact. Swingweight — a single number some shops publish — combines both and is the best predictor of how heavy a racket feels when you swing it.
Stiffness: power and comfort
Frame stiffness is measured as an RA value. Most rackets fall between 60 and 72 RA.
- Stiffer frames (68 RA and up) bend less, return more energy to the ball and feel crisp — but transmit more shock to the arm.
- Softer frames (below 65 RA) flex more, hold the ball slightly longer and feel more comfortable, at the cost of some free power.
If you have ever had tennis elbow, prioritise a lower RA value and pair it with soft strings. Our arm-friendly setup guide goes into detail.
String pattern: spin or control
The string pattern is the number of main (vertical) and cross (horizontal) strings.
- Open patterns, such as 16×19 or 16×18, leave more space between strings. The strings move and snap back more, which helps generate spin and adds a little power. Strings wear out faster.
- Dense patterns, such as 18×20, give a flatter, more controlled ball flight and a more predictable response. Strings last longer, and spin takes more effort.
Most players, including many professionals, use a 16×19 pattern. Choose 18×20 if you hit hard and flat and want to keep the ball in the court.
Grip size: often overlooked, always important
A grip that is too small makes you squeeze to stop the racket twisting; one that is too big limits wrist movement. Both can lead to arm pain. Grip sizes run from 0 to 5 in Europe (4 0/8 to 4 5/8 inches in the US). Most adult women use size 1–2 and most adult men size 2–3, but hand size varies widely — see our grip size guide to measure yours in a minute. When in doubt, go smaller: you can build a grip up with an overgrip, but you cannot make it smaller.
Putting it together: three typical profiles
The beginner or returning player
100–105 in² head, 260–280 g unstrung, slightly head-heavy or even balance, moderate stiffness, 16×19 pattern. Easy power and a big sweet spot while you build technique.
The improving club player
98–100 in², 285–300 g, even to slightly head-light, 16×19. Enough stability to swing out, enough forgiveness for the days your timing is off. This is where the popular "tweener" frames sit.
The advanced, full-swing player
95–98 in², 300–320 g, head-light, 16×19 for spin or 18×20 for control. Maximum stability and precision for players who generate their own pace.
For concrete model suggestions in each category, see our rackets by level guide.
Demo before you buy
No spec sheet replaces a hit. Many clubs and shops lend demo rackets for a few days; use them in a real session, not just a warm-up. Pay attention to how the racket feels late in the session, on defensive shots and on serves — that is where an unsuitable frame shows itself. Try two or three candidates strung with similar strings at similar tension, otherwise you are comparing strings rather than rackets.
Common mistakes to avoid
- Buying a pro's racket. Tour players use heavy, often customised frames. The retail version may not suit you at all.
- Choosing the lightest racket in the shop. Very light frames feel easy in the store but can be unstable and harsh on the arm.
- Ignoring the strings. A good racket with dead or ill-suited strings plays badly. Budget for a proper string job — see our strings guide.
- Guessing the grip size. Measure it. It takes a minute and protects your arm.
Frequently asked questions
What racket weight should a beginner use?
Most adult beginners are comfortable with an unstrung weight of roughly 255–285 g. It is light enough to swing freely and learn good technique, but not so light that it feels unstable on off-centre hits.
Is a bigger head size better?
A bigger head (around 645–710 cm² / 100–110 in²) gives a larger sweet spot and more easy power, which helps beginners and players with short swings. Smaller heads (around 600–630 cm² / 93–98 in²) offer more precision and control for players who already hit the centre of the strings consistently.
How do I know if a racket is too heavy?
If your arm tires after 30–40 minutes, your swing gets late on fast balls, or your shoulder or elbow feels sore after play, the racket is probably too heavy — or too head-heavy — for you right now.
Should I buy a racket that a pro uses?
Only if its specs suit you. Pro models are often heavier, smaller-headed and more demanding than what most club players need, and many professionals use customised frames that differ from the retail version.