How often should you restring a tennis racket?

The rule, and what it is actually for

The standard advice is to restring as many times a year as you play per week. Play twice a week, restring twice a year. Play five times a week, restring five times a year. It is a crude rule and it is a genuinely useful one, because it is anchored to playing volume rather than to the calendar.

Treat it as a floor rather than a target, and understand what it is protecting you from. It is not protecting you from a broken string — you will notice that. It is protecting you from the much more common situation where the string is intact, looks fine, and has quietly lost most of the tension it was strung at.

That is the central fact of this whole topic. Strings begin losing tension the moment they come off the machine and keep losing it whether the racket is in play or in a cupboard. A frame strung at 55 lb a year ago is not a frame at 55 lb, and nothing about looking at it will tell you where it actually is.

A dead string bed plays worse than a broken one

This is the sentence worth taking away from this page. A snapped string is honest: the racket is unusable and you deal with it. A dead string bed is dishonest. The racket looks fine and plays progressively worse, and because the change is gradual you adapt to it rather than noticing it.

What a player adapts to is usually technique, and that is the cost. As tension drops, the launch angle rises and balls start landing long, so you swing less freely or close the racket face to compensate. Both are habits, and both outlast the string that caused them. Players regularly describe a fresh restring as feeling like a new racket for exactly this reason.

• Balls landing longer than you intend — the clearest sign of lost tension, because a looser bed launches higher.
• A duller, flatter sound at contact — a bed with tension makes a distinctly higher-pitched note.
• Visible main-string notching — grooves worn where the crosses cross them. The string is close to failing here.
• Strings staying out of line — a healthy bed snaps back into place; a dead one needs straightening by hand every few points.
• Fraying on a multifilament — it is already well past its best, because a frayed multi has lost its stretch.

How fast tension goes depends on the string type

The four string material families lose tension at very different rates, which means the right restring interval depends on what is in your racket. Nobody publishes a universal decay curve, so what follows is the direction and the ordering rather than a set of numbers we cannot source.

• Polyester loses tension fastest, and a substantial share of it goes in the first few hours of play. This is why competitive players using poly restring on a schedule measured in weeks rather than months.
• Multifilament loses it more gradually but frays as it goes, which at least gives you a visual signal before it fails.
• Synthetic gut sits in the middle on both counts, which is part of why it is the sensible default.
• Natural gut holds tension best of all the materials, and is also the most sensitive to damp.

The practical consequence is that a poly player and a multifilament player playing identical hours need different intervals, and the poly player needs the shorter one despite poly being the more durable string. Durability and tension maintenance are different properties, and people conflate them constantly. Tennis string types sets the four families out in full.

Four reasons to restring regardless of the rule

1. 01You broke a string. No judgement required. Do not play on a broken bed even for one more game — an unbalanced string bed puts uneven load on the frame.
2. 02You are changing something deliberately. A new tension, a new gauge, a new type. The restring is the mechanism for the experiment, so it happens when you want to run it. Tennis string tension covers how big a change to make.
3. 03The racket has been in storage. Tension went while it sat there. A frame coming out after a winter off wants a fresh bed before you judge how it plays.
4. 04Your shots have started landing long. That is tension loss with a symptom attached, and it is the one case where the racket is telling you directly.

The one reason not to restring is a feeling that the racket is wrong without any of the signs above. In that case the racket may genuinely be wrong for you, and a restring will not fix a frame that is too heavy, too stiff or the wrong head size. How to choose a tennis racket is the page for that question.

On cost: the string itself runs from under $5 a set to around $24 at Tennis Warehouse's listed prices, and labour is charged separately by whoever does the work and varies by shop, so we do not quote a total. What we will say is that it is the cheapest meaningful change you can make to how a racket plays, by a wide margin.

How this guide was put together

We do not run a test lab and nothing here is written as though we did. This guide is built from the published specification sheets and third-party lab measurements cited at the foot of the page, plus the physical reasoning that connects them. Where a figure is not published we say so rather than estimating it.

The picks below are drawn from our product registry, so every one carries a cited source and a verified listing. Our full selection criteria set out the method and the editorial policy covers corrections. No price is written into this page — the figure on each buy button is the live one.