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Guide: choosing strings for your tennis racket

The string is the part of the racket that comes into direct contact with the ball. It affects the feel, precision, power and spin of the ball, as well as the joints or muscles in the player’s arm. Experienced or professional tennis players are well aware that the choice of string is as important as the choice of racket itself. These considerations are often discussed in detail at the Mouratoglou Academy‘s intensive courses, where emphasis is placed on the importance of each component of the equipment. Beginner tennis players tend to underestimate their importance, or even ignore the fact that strings tend to deteriorate over time and need to be changed at regular intervals. There are many different types of rope on the market. Because of the increasing variety of components, the main criterion for differentiation is the way they are assembled.
 

All the different types of rope on the market fall into one of two categories:
 

  • Natural gut ropes
  • Synthetic ropes
     

Natural gut ropes

Many people will be surprised to learn that manufacturers create natural strings from beef intestines!

Indeed, at first glance, the use of such a material for snowshoes may seem disconcerting. However, despite the strangeness of the material, natural gut is widely considered to be one of the best strings there is, and is favoured by some professional players such as Roger Federer.

The high elasticity of natural gut strings gives them great performance in terms of power, feel and comfort. What’s more, the strings retain their original tension for longer, and have a grip that is hard to match, even by the most advanced synthetic strings.

However, the lifespan of natural strings is shorter than that of synthetic strings. They are sensitive to moisture, and their price is by far the highest, due to complex manufacturing processes. For these reasons, natural gut strings are not frequently used by tennis players, either in clubs or for leisure. Instead, they are the preserve of experienced players, who are both more demanding in terms of quality and more able to afford the purchase and maintenance costs. The specific characteristics and choice of natural strings are also studied as part of the Mouratoglou Academy‘s tennis studies programme, where the equipment is optimised for the students’ performance. Fortunately, there are a large number of quality synthetic strings on the market. There’s something for every type of player looking for efficiency, playing comfort… and power!

  • Advantages of natural casings

    Power
    Comfort
    Sensations
    Maintaining tension

  • Disadvantages of natural casings

    Prices
    Effects capture
    Lifespan

Our opinion on natural casings

Tension control, comfort, improved feel… natural gut strings perform well and are suitable for a large number of players, but for the vast majority, it’s not worth the risk. Beginners are often tempted to buy the most expensive equipment to ensure they have a good foundation. However, as a beginner, you’ll have a hard time telling the difference in quality between natural gut strings and cheap synthetic strings – the differences are very subtle indeed.

It’s by concentrating on developing your technique and practising that you’ll see the greatest improvement in your results. What’s more, if you only play occasionally or on an irregular basis, investing in natural gut strings isn’t worth it, and you’ll hardly notice any difference in your playing if you opt for synthetic strings. On the other hand, if you’re an experienced player who competes, is developing all aspects of your game and is looking to improve in all areas, a natural gut string could be a very good choice. If you have a very high level of technique and experience, you will certainly be able to recognise and appreciate the unique feel of these strings, if you know how to look after them. Their quality is also proven. It’s up to you to look after them!

Synthetic ropes

As their name suggests, these types of strings are made from various synthetic components to increase the possibilities available to tennis players. Manufacturers control both the manufacturing process and the materials they are made from. A manufacturer is therefore able to design strings focusing on different levels of performance, such as comfort, durability, power or spin. There are three primary materials used in the manufacture of synthetic ropes:

  • Nylon strings
  • Polyester ropes
  • Kevlar ropes
  • Nylon rope

    Nylon: this is undoubtedly the most popular material in the “non-natural” category. Synthetic ropes and multi-filament ropes are both made from nylon. It is the quality of the nylon used and the design process that will differentiate two types of rope in this material.
     

    Advantages of Nylon
     

    • Spin grip
    • Control
    • Durability
    • Value for money
       

    Disadvantages of nylon
     

    • Feel
    • Tension stability
  • Polyester rope

    Polyester: used for strings consisting of a single uniform fibre, usually coated with a thin protective layer to reduce friction. It is designed to maximise power and ball control, to generate amplified lift effects.
     

    Advantages of Polyester
     

    • Pick-up of spin
    • Control
    • Service life
       

    Disadvantages of Polyester
     

    • Comfort
    • Sensations
    • Stability of tension
       
  • Kevlar rope

    Kevlar guarantees maximum levels of power and resistance, but is also the stiffest string available. It is used by players who frequently break their strings, combined with nylon strings to reduce rigidity.
     

    Advantages of Kevlar
     

    • Long service life
    • Control
    • Stability of string tension
       

    Disadvantages of Kevlar
     

    • Comfort
    • Feel
    • Grip
       

Types of set-up for tennis

Now that we’ve looked at the three main materials used for non-natural ropes, here are the most common types of assembly:

  • Mono filament

    Uniform monofilament strings consist of a uniform fibre, usually covered with a thin protective layer that reduces friction. This type of assembly is designed to maximise power and control over the ball.

  • Multi filament

    Multi-filament ropes are made from multiple fibres whose characteristics (shape, size, assembly, etc.) are determined by the manufacturer, as well as by the type of rope required. Multi-filament ropes are often made from nylon or polyamide fibres. This type of string is characterised by its dynamism and less rigidity, and not least by the comfort it offers.

  • Textured

    More recently, manufacturers such as Babolat have been experimenting with monofilament strings that are diversified in shape and texture, such as RPM Blast Rough. Textured strings can also be formed by adding an outer coating or incorporating a larger ribbon within the outer layer. This creates a reinforced coating that gives the rope a non-smooth texture.

  • Composite

    Composites are made by combining several different materials or qualities of materials. It is therefore more a method of combining materials to obtain certain characteristics than a type of assembly in the strict sense. As a result, the type of assembly can vary among these ropes.

  • Hybrid

    These are strings made with one type for horizontal strings and another for vertical strings. One of these hybrid set-ups, combining natural strings and polyester monofilament strings, is very popular with players at ATP and WTA tournaments. Hybrid set-ups can be divided into two sub-categories: one where the vertical strings are flexible and multifilament (often natural strings, in the case of professional players), the second where the vertical strings are mono-filament, in polyester. The former focus on comfort, dynamism and feel, and their weakness lies in power. Vertical strings are therefore often thicker than horizontal threads. On the professional circuit, these hybrid strings are used by legends such as Serena and Venus Williams. The other category of hybrids, with vertical monofilament strings, focuses more on power and control.
    When choosing, it’s best to look at your style of play and what you’re lacking. The most important factors to bear in mind are spin, control, comfort and durability, to get the best out of your tennis strings and rackets. The choice also depends on racket-related parameters such as mounting, frame size, width or rigidity, and string tension. String tension is crucial in tennis. Think about it!

Frequently asked questions (FAQ)

  • It depends on your playing habits, but also on your level. Professional players tend to opt for natural strings, which are highly effective but also more expensive to maintain. Other types of player tend to opt for synthetic strings. Here, it’s a question of determining whether you like thinner or thinner strings, with more or less tension. Remember: high tension reduces flexibility and therefore power!

  • Multifilament is made up of numerous strands that give the racket greater flexibility. In practice, this means more power and a better feel for the game. To make your choice, don’t hesitate to make a few balls.

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