Coach Vladimir Zakharov is Stanislav's father. Riabchuk was severly injured in summer 2000, when her partner hit her in practice with his blade on the head while doing a side-by-side spin. Riabchuk was in hospital for a couple of weeks.
| Место | Соревнование | Тип | Баллы | Сезон |
|---|---|---|---|---|
| 6 | ISU JGP Trofeo Rita Trapanese 2002 | Юниорский ГП | 0.00 | 2002/2003 |
| 2 | ISU JGP Courchevel 2002 | Юниорский ГП | 0.00 | 2002/2003 |
| 1 | ISU World Junior Championships 2002 | Юниорский ЧМ | 0.00 | 2001/2002 |
| 1 | National Championships 2002 | Чемпионат России | 0.00 | 2001/2002 |
| 6 | National Championships 2002 | Чемпионат России | 0.00 | 2001/2002 |
| 8 | ISU World Junior Championships 2001 | Юниорский ЧМ | 0.00 | 2000/2001 |
| 2 | National Championships 2001 | Чемпионат России | 0.00 | 2000/2001 |
| 1 | National Championships 2000 | Чемпионат России | 0.00 | 1999/2000 |
| 4 | ISU JGP Czech Skate 1999 | Юниорский ГП | 0.00 | 1999/2000 |
| 6 | ISU World Junior Championships 2000 | Юниорский ЧМ | 0.00 | 1999/2000 |