Tennis EquipmentTennis Strings

Hybrid Stringing – Roger Federer’s Stringing Method of Choice

What is hybrid tennis stringing? Should you use a hybrid? How is it different? How do you string a hybrid setup? All that and more in this handy guide.

If you have ever played with a natural gut string before, you’ll likely have found it to be the most playable and arm friendly string going. However, it’s expensive and if you’re a heavy topspin player, the durability of the strings comes into question.

On the flip side, polyesters provide much better durability, whilst offering unrivalled levels of spin and control. But the strings are unforgiving on the arm and have caused countless players problems with tennis elbow.

If only there was a way to combine the best qualities of different types of strings whilst lessening each of their limitations in the same racquet.

Welcome to the world of hybrid tennis stringing. It’s also the string setup of choice for Roger Federer so let’s take a look.

What is a Hybrid?

federer hybrid

A hybrid string setup is the use of two different strings in the mains and cross strings of a tennis racquet.

This can be as simple as using two different gauges of the same string but is more commonly done with two completely different string materials. For example, natural gut with a polyester.

Hybrid setups are extremely common on the ATP and WTA pro tours right now with players choosing a strong, endurance-type string in the mains like Babolat RPM Blast or Luxilon and pairing it with a softer string in the crosses such as natural gut or a multifilament.

Why Do Players Choose To String With a Hybrid Setup?

natural gut colour coating

About 80% of the playability in your racquet comes from the main strings, therefore the mains are usually the first to break.

If you put a polyester string in the mains that’s the string that is doing most of the work and thanks to its durability, will increase the longevity of the string job as well as providing access to huge spin and control that those type of strings offer.

Coupling the durable string with softer strings in the crosses will decrease the harshness that you’d get with a full polyester string bed. And at the same time negate the poorer durability that a full bed of natural gut gives. 

So whilst it’s not mathematically the best of both worlds as one string is still doing more of the work, it’s still a close compromise whereby you get the benefits of both strings and offset the limitations they each have.

Either limiting the power of gut mains or wanting more spin but still having control is why most professionals use a hybrid, but for the club player, the other benefit is cost.

A hybrid string job can lower the cost of an expensive string. Let’s say you are a huge fan of natural gut, but the hefty price tag coupled with frequent restringing makes it too costly. Instead, using a cheaper, tougher string in the crosses will increase durability and lower the overall cost.

Will it play exactly like a full set bed of natural gut? No. But it’s liveable and the reduction in playability doesn’t outweigh the cost-saving for a lot of players. 

By selecting different hybrid combinations of string, players can fine-tune the playability of their racquet. Comfort, durability, liveliness and control can all be tweaked so you get a blend of the two and for a lot of players that blend is preferable.

Roger Federer’s Hybrid String Setup

Hybrid String Setup

In some ways, Roger Federer is the grandfather of the hybrid string setup as he’s been using it since 2002 with a combination of Wilson natural gut and Luxilon ALU Power Rough. 

Federer’s exact setup is known as a reverse hybrid as he uses natural gut in his main strings and Luxilon in the cross strings. That setup gives a livelier feel on contact but also gives plenty of spin potential and has paved the way for players like Serena Williams, Kei Nishikori and Grigor Dimitrov to also use a hybrid string setup.

Having natural gut in the mains means the playability is more comfortable because the emphasis is on the more forgiving strings. It also gives access to more power thanks to the properties of natural gut. The Luxilon in the crosses tempers the power of the natural gut and gives Federer access to more spin and control.

Should You Copy Federer’s Hybrid String Setup?

For players who aren’t string breakers, don’t mind restringing often or prefer a softer feel orientated string bed then you will like Federer’s setup.

Of course, durability is not as impressive, but there’s greater feel and Roger Federer doesn’t worry about breaking strings as he gets a freshly strung racquet out the game before new balls.

Personally, I find Federer’s setup feels and plays the best of any hybrid I’ve tried. The polyester tempers the power of the gut and you are still able to impart a lot of spin on the ball without putting too much strain on the arm thanks to joint friendliness of the natural gut.

The only negative is cost, if you use a high end coated gut and a high-end slick poly like Luxilon, like the pre-packaged Champions Choice then the string cost alone is like $40. Alu rough also frays gut quickly due to the ridged surface.

If you use a natural gut in the mains and want to gain some extra durability, take a look at my post on string savers. They are designed to decrease the friction between the strings.

Should I String with a Hybrid Setup?

hybrid stringing

Before you jump the gun and go buy a set of Wilson’s Champion Choice, you need to ask yourself the following:

What do I want to get out of this change in string setup?

If you don’t have an idea of what you are looking for, it’s difficult to see results and you end up with a bad stringing experience.

I like to think of hybrid stringing as finding a balance and tempering the properties of one string with another and in my experience, most players switch to a hybrid setup in order to increase durability. But any of the below are common reasons:

  • Increase the durability of the strings
  • Boost the playability of the racquet.
  • Change desired string bed stiffness
  • Achieve a balance between power and control.
  • Increase top spin capability
  • Lower the stiffness of a racquet to make it arm friendly
  • Reduce the cost of stringing a racquet.

Let’s look at the durability angle. If you are wearing through synthetic strings, multifilaments or natural gut quicker than you’d like (or your finances aren’t enjoying it) then you will probably look into switching to a polyester string.

Before going pull polyester, you might want to try poly mains with synthetic gut (or whatever you are currently using) in the crosses.

As I mentioned above, the mains do most of the work, so only switching those to polyester might be all you need. Plus, you will still have the power, comfort and feel of the synthetic gut cross strings. You might still break strings, but it should take noticeably longer. 

If you’re a full polyester player and are starting to feel it on the arm or joints, then mixing your poly mains with a natural gut or soft multifilament will take that harshness away and comfort will increase dramatically. 

This is the setup Andy Murray uses with Luxilon in the mains and a natural gut in the crosses. This is a nice setup, but if you aren’t having arm problems, then you will want to decide if paying for a premium cross string that isn’t adding much in the way of playability is worth it compared to a synthetic gut.

You might like: The best tennis racquets for senior tennis players. This guide looks at arm friendly racquets and what to look for in a frame for the older player.

If you have been using a full bed of natural gut and are struggling to find the lines, then you could take Federer’s approach and put a polyester string in the crosses. The higher stiffness of the poly reduces the power of the racquet so you gain more control. One thing to be aware of here is with a rough textured polyester the poly will chew through the natural gut quickly.

So should you string hybrid? A hybrid setup really makes sense for a lot of players. Most recreational player will not be able to handle a full set of polyester because of the stiffness and lack of dwell time on the strings. Therefore going polyester in the mains with a synthetic gut or multifilament tends to be the setup that I recommend for the majority of players.

What String Tension Should You String A Hybrid At?


As you can see from Federer’s example above, you can vary the tension between strings. The general rule most players follow is that softer, longer main strings should be strung tighter than the shorter poly cross strings to bring the the string bed to a more proportional tension.

The other theory here is the size of the ‘sweet spot’ increases. I don’t like the term sweet spot, but it’s commonly used. For tension variance, aim for 2-3lbs and don’t go above 5lbs.

However, this is by no means a ‘law’ and many players string the mains and crosses at identical tensions whether it’s a hybrid, one piece, 2 knots for 4. So it varies significantly amongst players.

Hybrids Using Different String Gauges

x one biphase

One other hybrid setup is to use two different gauges of the same string. Again this is done to increase durability, comfort, or spin.

An example here could be, you are a huge fan of 17 gauge Technifibre X-One Biphase but it breaks too quickly.

Rather than switching completely straight to a full set of thicker 16 gauge X-One Biphase, put the thicker string in the mains, and keep your preferred 17 in the crosses.

The outcome might be that you get the added durability without a total change in feel.

Pro Players That String With a Hybrid Setup

nishikori luxilon element
  • Roger Federer: Wilson Natural Gut in the mains and Luxilon ALU Rough in the crosses
  • Grigor Dimitrov: Luxilon 4G in the mains and Wilson Natural Gut in the crosses
  • Kei Nishikori: Wilson Natural Gut in the mains and Luxilon Element in the crosses
  • Serena Williams: Wilson Natural Gut in the mains and Luxilon 4G in the crosses
  • Genie Bouchard: RPM Blast in the main and VS Touch in the crosses
  • Felix Auger-Aliassime: VS Touch in the mains and RPM Team in the crosses
  • Jo-Wilfried Tsonga: VS Team in the mains and RPM Team in the crosses

Know any more player setups? Let me know in the comments and I will add them in.

Felix Auger Aliassime has VS Touch in the mains and RPM Team in the crosses. It’s his coach that suggested this combination for him. He wanted to bring Felix a dynamic string so he could use his touch more effectively rather than relying solely on raw power. This was a significant move to prepare him for the transition from juniors to ATP where there are more styles of play than he is used to. The hybrid stringing allowed him to take his game to the next level very quickly. François-Xavier Quesse, Babolat

Recommended Hybrid Tennis String Setups for 2020

Champions Choice Hybrid

The popularity and demand for hybrids mean that many string manufacturers sell prepackaged sets. Instead of needing to buy two full sets of different strings and cutting them in half, companies are putting half-sets in one package.

This, of course, makes it much simpler for the experimenting consumer and the stringer. Although do be aware there is a convenience charge here so you do pay bit extra.

There’s a wide variety of hybrid string combinations that can be used, and like I’ve said on a lot of posts, deciding on the right one for you boils down to personal preference. What works for one player might not work for the next.

This presents one of the drawbacks of hybrids: the string possibilities are endless. With so many types of string on the market, a player can go crazy searching for the perfect combination. 

Three Hybrids I Recommend:

Final Thoughts

Experimenting with hybrid stringing could help you gain an edge on your opponents so if you haven’t tried it and feel like your game is missing something, it’s worth testing.

As I’ve said, consider what you need to improve in your game (i.e. more power, more control, less restrings due to breakages, more comfort, etc.), and work with your stringer to produce a hybrid that will deliver it. You may find that hybrid stringing was the missing piece in your tennis puzzle.

Does that mean hybrid stringing is some magic bullet? Of course not. A full bed of synthetic gut works just fine for many players. For advanced players, a full set of polyester can be a better choice.

In fact, the technology advancements mean some polyesters actually feel and respond pretty well these days. Some players are even stringing with two different polys, a rough and a smooth. Not something I’ve tried but it’s on the to-do list.

Are you a fan of hybrid tennis strings? If so, what’s your favourite hybrid combination? Let me know in the comments.


Editor of Perfect Tennis and a big fan of Roger Federer, I've spent countless hours watching and analysing his matches. Alongside playing the sport, I also enjoy writing about the tour, rackets, strings, and the technicalities of the game. Whether it's breaking down the latest tournament results or discussing the latest gear innovations, I'm always eager to share my insights with fellow tennis enthusiasts.

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  1. Very interesting and detailed post Jonathan.
    It does make you think though,those players who take their frustrations out on their rackets,how silly is that.

    1. I just can’t afford newer rackets (now I have mine since 5 years) and they destroyed them like sticks, I fucking hate it. That and the wasted time of the workers who made them.

    2. If it weren’t for safety reasons, a player should be made to play the remainder of the game with the broken racquet.
      And then buy from his pocket 500 racquets and offer them to some club where the students have difficulties buying gear.
      And pay the fine, of course…

    3. Yeah, it’s not a good look to smash something a lot of people can’t afford in many parts of the world. Kyrgios going off the court to smash 2 racquets was stupid. I don’t mind when it’s once in a blue moon and you are clearly mega pissed at that moment. But not every match you play.

  2. Roger should focus on this one like he did in 2008.
    He was just angry of how the season went and how WImbledon ended, losing the way it did. He needs to bring his A game and with more aggressiveness than ever.

  3. Sorry, this is not related to hybrid stringing but today we learned how to defeat Djokovic from 40-15 (on Novak’s service, but that’s a minor detail…)

    Hybrids… hum, I’m not there yet.
    A soft polyester is the way to go for me. Dunlop Black Widow at 24 kgf, please, with a glass of water and a toothpick.

      1. BW is noticeably softer that all other polyesters I’ve tried. You can pull it to 25 kgf (~55 lb) without fear and it will still give a nice pop. If you have good technique the spin is surreal. The downside is that after some time (sooner than with others) it will notch onto itself and make an unpleasant “krrrak” sound if you put some spin on the ball. If you go hybrid I suspect the 7 sharp edges will destroy any multifilament very fast…

      1. No, I never tried hybrids. I don’t know if the stringer is used to do that (well, I never asked!) He strings always as one piece. My game level is just at the point where I see that with nylon strings my balls go past the base line too often when I want to play more aggressively and polyester gives me a harsher (but not by much) and more connected feel which gives much more confidence when “going for it”.

      2. @Rui
        Your balls go regularly beyond the baseline? Try stronger tension.
        That’s what Thiem made as experiment in London 2018 before Nishikori match and it worked so, he kissed his racket after the win 😉
        Sure, only one of many available options, but if you like your nylon strings and don’t want to change them, this might be the solution.

  4. (and @Jon, it’s “oriented”, not “orientated”, which does not exist; don’t worry too much. I’ve seen that more times than I can shake a stick at)
    Sorry to point this type of thing out, that some may take offense from…

    1. You’ve seen it more times than you can shake a stick at because orientated is British English. I guess you go by American. That’s not my favorite…

      1. You’re right. I just looked it up on the Cambridge website (I should have done it in the very first place before playing the uninvited teacher!) Thanks for pointing that out. It’s more or less the same with Brazilian “Portuguese” that is a pile of errors…

    1. And all that in spite of the strangest forehand I’ve seen. But if it works for him…That match point slap reminded of Fernando Gonzalez.
      Plus, he does not spend an eternity in pre-service rituals. Grab the ball, toss, blam!

    2. I kinda like he’s a bit unorthodox in style, everybody plays the same so get’s a bit boring, he comes along and just see ball, hit ball.

      I saw Kyrgios posted a video with a timer running of him side by side with Nadal, Rafa taking 40 seconds between points 😆

  5. Woke up this morning to some good news congrats to Daniel I have a spring in my step ! Maybe it’s the hybrid strings in my shoes ha ! let’s hope Roger has a smile on his face too and is springing round Arthur Ashe !
    Brilliant !

  6. So who will win tonight?apologies Jonathan for going off at a tangent but it is kind of interesting😀
    Great as Danil was,we know the effort mental and physical of beating one of the top three.
    I think Goffin may have this,easier match,played earlier,in form himself.
    However I like them both,but Danil has earned it after three finals in a row.And he and his wife are rather sweet.I am not
    being condescending there,they seem genuinely nice.
    To get back on track,I wonder what racket and stringing he favours.😎

    1. Medvedev uses Technifibre racquets and I believe a full bed of their Razor Code string. Never used it but it’s marketed for players with big and fast swings which is certainly his forehand. But I doubt most people care. A picture of Federer sat on a bench at a changeover would draw more interest than this post but I prefer writing about equipment 😀

      1. Well, it certainly helped him tonight. Daniil’s average game duration was less than half of David’s.
        And what did he do at 15-40 when serving for the trophy? He slapped 4 winning services in a row. Maybe he’s the best among the youngsters. Only time will tell but he’s having a great season so far.

      2. @Rui
        Medvedev had a lot of luck this season. I don’t expect such season to repeat for him.
        Don’t see him to have much success in slams. Like Zverev.

        Any hard hitting player with good return can beat him. it’s enough to let him run to the dropshot and back to the baseline. Like Thiem did against him in Barcelona (esp. second set .
        He can run along the baseline like young Djokovic and still hit deep shots.

        Rublev bit Fed, who is not the best in defense but was nope against Medvedev. Fed would beat Medvedev with ease playing cat and mouse and letting him run vertical.

  7. Yes,very pleased to be wrong(as usual) in my prediction.
    The American Open just got a lot more interesting (but please let him land in Djokers half,not Feds)🙂

    1. Better no Rublev in his half. Medvedev will dye in the first round and he has no skills to defeat Fed. Not the same as defeating hurt Djoker or Goffin, who’s best game was never enough to go deep or win titles. David moves very well and is a smart player but has no outstanding weapons needed for big matches.

      Whatever the draw, Fed plans some caravaning in the second week, so … 😉

    1. Seen it. I don’t like the stuff this guy says to be honest. The typical snow flake generation who want something for nothing. And now he wants to ‘fix the sport’ and just throws out stuff like ‘I don’t know if you know but alocohol abuse is a huge problem on the tour’ with no substance behind it.

      I’ve never read one good argument about prize money distribution being unfair either. It’s just players who aren’t really doing well wanting more rewards for mediocrity. Whenever I asked someone – ok so specifically how many players should be able to make a living from hitting a ball over a net? You are met with silence.

      I guess the argument now is, should you really pay players who aren’t good enough more money to buy alcohol with? 😁

      1. Hahaha … scholarship for talentless alcoholics 😉

        My point is, we don’t really need big masses of pro players or we need to have a low age limit. If you are say 20 and you cannot reach Top100 or Top200, you never get a pro license. If you love tennis, you can still play club tennis for free and for fun 🙂

        What is maybe a problem, it’s too much money for the best. This can be demoralizing. The best should be able and willing to play for more glory and less money.

        But nobody can change it, because it’s big business. They pay Fed 2 millions appearance fee but they earn 10x this amount from the tennis business.

      2. There shouldn’t be any age limits. The threshold is winning matches regardless of age.

        Prize money for the winner should be a huge motivation, not a demoraliser.

        I might do a post about prize money, we shall see.

      3. @Jonathan
        Good idea to do a post about money in tennis. Maybe not only prize money? Appearance fees are a bit controversial and mysterious.

        Principally I agree, the money is for sure a motivation and also a compensation for great effort.

        What I mean, is maybe 20 years old earning millions a year can be demorali
        zing (example – Tomic.

  8. Hi,

    What tension would you recommend for Luxilon Element and Wilson NXT strings on a Wilson Pro Staff 97L racquet (player is a competitive 12yrs old)? Also, which string would you recommend in mains and in cross?



    1. Hi,

      I wouldn’t worry too much about tension much at 12 years old. Just string in the middle of the recommended range which is 55lbs and see how it goes?

      Which string have you got in the mains at the moment? Element in the mains gives more power/spin potential. NXT in the mains is more comfort/power orientated. I would probably put Element in the mains, but if you feel like you want more power, I’d reverse it.


  9. What I think is missing from your post is tensions. What tension are Federer and Serena using on their Wilson racquets?? As a stringer and father of a USTA nationally ranked Junior, I always wonder… Should I go 46, 52? I got that Mains string tighter (i knew that) but what is the ideal tension for each racquet and style of play?

  10. Thanks for the article and resource Jonathan,

    My current favorite combo is Head Hawk Touch 19 @ 45 in the mains and Gosen Polyon 17 @ 45 in the crosses with power pads. I tried the same strings @ 51 in the ProSTaff S (97 sq in 16×19) and it is good but it is not my game racquet. The racquet is the Ultra Pro V3 (97 sq in) 18×20 and it has more feel than any combo I have tried. It’s like ESP in the racquet – top spin comes easy in fore and backhand. The sound is as close to a silent ‘whoosh’ as any when I hit the COP of the string bed and there is no noticeable vibration or torqueing.
    My second favorite was Ashaway Dynamite 18 Soft in the entire racquet and I tried different crosses including Volkl Psycho Hybrid 17G which was stiffer but powerful.
    I am looking to see if I can improve the Head Touch/Gosen.

    1. I need to test some Gosen strings myself. Big fan of Toalson, the Japanese stuff always seems good.

      For hybrid, you can’t beat gut, but it’s expensive. Hawk Touch is a good string.

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