| Abbreviation | Definition |
|---|---|
| RTTF | Russian Table Tennis Forum |
| RTTV | Rheinhessischer Tisch Tennis Verband |
| RVS | Racquet Vibration System |
| SCTA | Southern California Tennis Academy |
| SCTA | Southern California Tennis Association |
| SCTL | Space Coast Tennis League |
| SDTA | Shepparton And District Tennis Association |
| SFTA | Sioux Falls Tennis Association |
| SHPT | Saviano High Performance Tennis |
| SHTC | Sunshine Hills Tennis Club |
| SJTA | St. James Tennis Association |
| SKT | Samuel K Tennis |
| SMTTP | Saturday Morning Tennis Training Program |
| SPTA | South Philadelphia Tennis Association |
| SPTA | Swiss Professional Tennis Association |
| SPTC | Surfers Paradise Tennis Club |
| SPUT | Saint Paul Urban Tennis |
| SPUT | St Paul Urban Tennis |
| SSTTL | Shake Shack Table Tennis League |
| STPC | Senior Tennis Players Club |