Thanks Petros & Maria. Great job!

I would like to thank Petros for giving me the pleasure of feeling like a pro in every aspect of the game. I was in love with the game but now I m in love with my rackets too… His ability in customization worths trying. MANTIS 315 Tour is really a tour racket and MANTIS Pro 310 Pro great for anyone that plays intermediate to advance level of tennis.

The level of services provided by RacketSpecialist is more than excellent. The mantis 300 racket that I purchased, gave me such an improvement in my game that I couldn't imagine and this after having tried many known rackets that felt very mediocre. Petros devoted a lot of time helping me a lot so as to understand my needs for a frame that suits game style and to guide me to the right racket with the right set up. All the best to this brand and do keep this incredible service that promotes tennis in Greece.(translation: respecting the original)

Petros – Thanks !

Maria + Petros – My best to you

For Petros Best Wishes see you on the tour

Congratulations on being not only one of the top stringers in the world but also for your outstanding organization and administration of the beautiful tennis facility in Volos. I hope that other communities in Greece will follow your example – that of your dedication to the children and members of the community. Thank you for your kindness and hospitality. Εις ανώτερα Paul J Xanthos – Απόστολος – 10 Mar 2002

I am a club player with a 30+ years playing experience in Greece and in the U.S. I give special attention to my equipment. I feel very fortunate to have somebody like Petros provide me with his expertise on racquet tuning. He is a master technician and has a deep knowledge on how to customize a racquet to meet the client’s exact expectations. It is not a coincidence that he has repeatedly provided his services to major professional tournaments around the world! Keep up the good work!

Good morning Mr. Biris! I have to point out the following! After our phone conversation I sent you my racket which I received back today. My wish was to increase the racket weight (Babolat pure drive lite GT) from 275 g to 300 g and its grip size from No1 to No2. In addition I requested a restringing! At first I was quite skeptical about this customization and I was thinking of buying a new racket as the previous one turned out to be a wrong choice. In the end, the result is impressive! It's like I received another racket. Much better feel, way more stable and quality impact, and all this at a fair cost! Overall, your service gave me the feel of high professionalism and I would like to give my praise! Thank you! (translation respecting the original)

Most accurate, sophisticated, and in-depth researched services in the ATP WTA Tour provided by Petros Biris, and RacketSpecialist. Extremely consistent stringing, most individualized racket engineering, excellent synergy between Petros and Player/Coach/Manager demands. Most recommended.

Excellent stringbed feel and racket customization just the way it suits me best. The result is beyond comparison and this from the first strokes after stringing until next restringing! (translation respecting the original)  

I really have to mention some important comments about stringing as a club player. The safety the moment you hit the ball is the tip to success. And that safety to me appears as a result of the amazing stringing that Petros Biris offers. If Ι stop stringing at him, I will stop probably playing tennis.

Thanks Petros ! GREAT STRINGING

Petros thanks for not only the stringing but advise too! All the best

DARA PETROS QUE GRACIAS A SUS ENCORADOS ME HE DADO CUENTA LO BUEN PROFESIONAL QUE ES

Το καλυτερο πλεξιμο που εχω δοκιμασει και η καλυτερη αισθηση οσον αφορα τις χορδες. Κατα τη γνωμη μου οι καλυτερες υπηρεσιες για τεννις στην Ελλαδα προσφερονται εδω!!!!

Εχω μείνει απόλυτα ικανοποιημένος απο τις υπηρεσίες που προσφέρει ο Πέτρος Μπίρης. Το καλύτερο πλέξιμο που έχω δοκιμάσει μέχρι στιγμής όσον αφορά την αίσθηση στο χτύπημα της μπάλας!!!!

Οι χρήσιμες συμβουλές του Πέτρου και το άψογο customization & stringing στις MANTIS 300 που έχω, με οδήγησαν στο να ξεπεράσω σε χρόνο ρεκόρ το πρόβλημα στον αγκώνα που με ταλαιπωρούσε,  απογείωσαν το παιχνίδι μου και με οδήγησαν σε πολλές επιτυχίες στα τουρνουά που συμμετέχω. P E T R O S   K E E P    S T R I N G I N G !!!!!!!!!

Whenever you need top notch stringing, there you will find Petros Biris. Absolutely the best racket stringing I have ever experienced. Petros’s stringing provides a superior ball sense that is second to none!!!

Petros Biris is the benchmark of excellence in racket service! His stringing craft reaches the upper limits of your racket and play and his customization skills can even boost your racket to new unprecedented levels of performance! (translation: respecting the original)

Petros Biris is what we call “Professional”! Stringing the racket to be a part of your body and mind! What you only have to do is to describe him the way you like to play and trust his experience for the excellent result! Thank you Petros, I really appreciate!

I just got my racket being strung by mr. Biris; I would never expect such a big difference in feel and in power. The service all in all, was excellent and highly professional and this within a reasonable cost. (translation: respecting the original)

I got my racket strung by mr.Biris…!!!I could not even imagine such a big difference!!!Better feelling more power and excelent control!!!Thank you mr.Biris!!!You are the best!!!!!

Every single detail was taken care of in either stringing or customization service.I was able to produce better shots and the feeling of the racket was unreal.Highly recommended service!

Continuing my career as a humble player in a sport that I recently fall in love with, I switched from MANTIS 285 to MANTIS 295. What I want to say about the work of Mr. Biris is that his advice and attention in order to set up my racket, were beyond my expectations and well beyond the limits of “just being” professional. I highly recommend his service !!!! Thanx Petros!

No matter what I say to describe what this man does with the rackets, it still would be not enough… Great job! He gave life to all my “dead” rackets. Show full confidence and let your racket in his hands. You won’t regret it…

From our very first telephone conversation, Mr. Biris heard our concerns about the racket of our child, giving great attention to details. We immediately realized his excellent knowledge and expertise in the field. Our kid was thrilled by the new feel of the grip and the difference in both control and power was noticeable from the very first strokes. It wasn’t just the stringing, but the fact that he still advises us and gives us guidelines transforming the racket to an extension of our kid’s hand and helping him to further develop as a player!

Following Petros Biris’ recommendation I switched my racket from Prince to Mantis and I’m glad that I did it.  I’ve just played twice and I can tell and feel the difference.  Petros undertook the racket stringing.  The overall service met my expectations in addition to time-response and the cost.

After 2 unsuccessful and costly racket purchases, that proved not to fit my game style, I found out about Petros Biris and Mantis. In the beginning I was hesitant, but after I spoke with Petros I had answers to all my questions and step by step we found the Mantis frame that works best for me (Mantis 265). His stringing is “out of this world”, a sweet feel that is hard to believe, every stroke felt fantastic, the racket become a continuity of my hand. But it wasn’t just that. Petros follows my progress by adjusting the racket to my game development. Customization is what makes the difference, as the racket truly becomes a very personal thing.

I had doubts about the correct size of my grip. After we discussed with mr. Petros we decided that it had to be reduced in size so that it fits better in my palm. With an unprecedented stringing quality and his advise in choosing the correct tension, the outcome was a perfect ball feedback during impact while at the same time power kept at optimal level. My service also improved drastically after the grip customization and the racket wasn’t tiring my muscles any more. From now I will never let anyone else “put his hands on my racket” so that I will always get the most delight out of my game. I thank him very much and totally recommend him.