Mark Kuczynski, USRSA Master Racquet Technician
Owner of URacquet Shop. Stringer to tour professionals, international juniors, NCAA Division I programs — and the University of Pennsylvania since 2022.
About Mark
URacquet Shop owner Mark Kuczynski, a United States Racquet Stringing Association (USRSA) Master Racquet Technician, brings extensive experience stringing at the highest levels of tennis. As a multi-year member of the ATP 250 Winston-Salem Open stringing team, he coordinated racquet logistics and delivered precision stringing for the world’s top-ranked professionals. In 2026 he was the stringing team manager and lead stringer for the inaugural WTA 125 Philadelphia Open. Additionally in 2026, Mark traveled to Columbus, Ohio to be a member of the stringing team at the ATP Columbus Challenger which takes place every year at Ohio State University. His tournament experience includes the 2023 and 2024 stringing teams at the Eddie Herr International Junior Championships at IMG Academy, where he strung for leading juniors and for multiple top-50 professionals conducting training blocks at IMG.
Based in Philadelphia, Mark has been the dedicated full-time stringer for the University of Pennsylvania’s varsity tennis programs since 2022, and has worked for numerous NCAA and Ivy League programs including Wake Forest, Ohio State, the University of Georgia, Princeton, Harvard and Columbia. He has been the primary stringer and team leader for multiple ITA Northeast Regional Championships and for the ECAC Championships three years running. His commitment to professional service is underscored by training from multiple Master Racquet Technicians and Grand Slam–experienced stringers.
In March 2026, Mark opened URacquet Shop in West Philadelphia, blocks from the University of Pennsylvania and Drexel University, to give Philadelphia’s club players and NCAA athletes alike access to Master Racquet Technician services — and the chance to pick his brain on the latest racquet and string technology.
When not in the shop or on court, Mark is at home with his wife and their cats.
Credentials
- USRSA Master Racquet Technician
- University of Pennsylvania varsity tennis — full-time stringer since 2022
- WTA 125 Philadelphia Open (2026) — team leader, manager and head stringer
- ATP 250 Winston-Salem Open — multi-year stringing team member
- ATP Columbus Challenger, Ohio State University — stringing team member (2026)
- Eddie Herr International Junior Championships, IMG Academy — 2023, 2024
- ITA Northeast Regional Championships; ECAC Championships (three years) — primary stringer and team lead
- NCAA and Ivy League programs served: Wake Forest, Ohio State, Georgia, Princeton, Harvard, Columbia