The Porsche Tennis Grand Prix was held on indoor hard courts from 1978 to 2008, but has been contested on indoor clay courts since 2009. The state-of-the-art Porsche Arena in Stuttgart, Germany has ...

Find the best tennis strings with easy-to-use use string finding tool. Looking for a new tennis string but not sure which to test? Whether you are new to the sport or a seasoned pro, our string finder ...