| Link | Location |
---|
 | Irina Rusanova | Москва, Russian Federation |
 | Natalia Rusova | Moscow, Russian Federation |
 | Josh Ryan | Fort Collins, Colorado, United States |
 | Denys Ryzhykh | Haarlem, Netherlands |
 | Andrew S | Rockville Centre, New York, United States |
 | Andrejs Sabasovs | Riga, Latvia |
 | Jon Sagui | Madison, Wisconsin, United States |
 | Pranay Sahgal | Rockville Centre, New York, United States |
 | Yuriy Sakharov | Moscow (online), Russian Federation |
 | Mathavee Saksamanphan | Jakarta, Indonesia |
 | Sławomir Salamon | Kraków, Poland |
 | Amer Saleh | Leicester, United Kingdom |
 | Dmitry Samoylov | Moscow online, Russian Federation |
 | Gregg Sanderson | Madison, Wisconsin, United States |
 | Eduard Sandor | Cluj-Napoca, Romania |