In the modern game, everyone obsesses about spin.
But what if you could outwit and position your opponents off the court instead.
Round poly strings are a great option to achieve that.
In this article you’ll understand what round strings are, the benefits of playing with round strings and explore how Sync takes these advantages to another level.
Understanding round tennis strings
Round poly tennis strings are defined by their smooth, uniform surface, which creates a distinct feel and performance compared to shaped strings.
Unlike strings with edges designed to grip the ball aggressively, round strings focus on delivering consistency and precision. If you've played with a string like Sync, you'll notice how it differs from shaped options like Zero.
One of the key characteristics of round strings is their interaction with the ball. Their smooth surface allows for greater contact with the ball at impact, leading to a longer dwell time. This means the ball stays on the strings for a fraction longer, giving you more feedback and precision on each shot.
Beyond feel, round strings also ensure uniform string-to-string interaction. Without sharp edges, the strings slide against each other more smoothly, allowing for a predictable response across the string bed.
Benefits of round tennis strings
Connect with the ball better
One of the standout advantages of round strings is their ability to provide a better ball connection. The increased surface contact between the ball and the string bed creates a more stable response, giving you confidence in your shot-making.
Whether you're playing touch volleys or driving deep baseline shots, a round string’s longer dwell time helps you stay in control.
Get more consistent performance
Since round strings lack edges that may wear unevenly, they offer a more uniform response across the entire racket. This predictability allows you to develop a more consistent game, knowing exactly how your strings will behave on every shot.
Unlike textured or shaped strings that can introduce variances in ball flight, round strings deliver a reliable feel and accuracy that can make a real difference, particularly for players who rely on precision over raw power.
Place the ball exactly where you want
The clean, stable response of a round string like Sync allows you to direct the ball with pinpoint accuracy. Whether you’re carving a sharp angle or sending a deep shot to the baseline, a round string setup gives you the confidence you need to play your best tennis.
ReString Sync
Round strings are great for certain players, but not all of them are created equal. ReString’s Sync embodies all the advantages of a round poly string but refines them even further.
Feel every shot
Engineered specifically for control and feel, Sync’s low-friction coating enhances string snapback without compromising predictability. This means you still get a clean, consistent response while benefiting from a bit of extra energy return on shots.
Play better for longer
Another major strength of Sync is its superior tension maintenance. Over time, all strings lose tension, which can lead to a drop-off in control and response. Sync is designed to hold tension and keep its playing characteristics longer than traditional polyester strings, meaning your racket will play consistently over a greater period.
Finding the right setup with Sync
Of course, you can play with a full bed of Sync to maximize the characteristics of the string. However, it is fun to play around with different setups to see what suits your game the most.
Pair Sync with other strings
Pairing Sync as a cross string with a more aggressive main string, like Zero, can create a balanced string bed that blends control with added spin potential.
This is the ReString setup we recommend to most players, unless you really want to prioritize control. In which case a Sync x Zero combination might work best for you.
If you use a more delicate string like natural gut in the mains, adding Sync in the crosses can extend the life of the gut compared to a shaped poly string because the surface of the string is not so abrasive.
Adjust string tension and pattern
When it comes to optimizing your string setup, adjusting the string tension and string pattern can also make a big difference to how your racket performs.
Lower string tensions (<52 lbs) tend to provide more comfort and power, as the strings have more "give" at impact. On the other hand, higher string tensions (>52 lbs) allow for more precision and predictability on your shots.
Denser string patterns (18x20) work to enhance the control aspect of your round strings. While more open string patterns (16×19) can give your shots a bit more pop and power.
You can use tension and pattern to either boost or offset the control characteristics of your round string.
Conclusion
Round strings are smooth, circular poly strings that offer enhanced ball connection, consistent performance, and superior control. Sync string refines these benefits further with a low-friction coating and long-lasting tension.
For your next round string purchase, give Sync a try either on its own or in a hybrid setup.