| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Female | |
| Full name | Sonja Rosalinde•van der Velden | |
| Used name | Sonja•van der Velden | |
| Born | 11 February 1976 in Nijmegen, Gelderland |  NED |
| Measurements | 171 cm / 56 kg | |
| Affiliations | Santa Clara Aquamaids — Santa Clara, California |  USA |
| NOC | Netherlands | NED |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2004 Summer Olympics | Artistic Swimming (Aquatics) | NED |
Sonja van der Velden | |||
| Duet, Women (Olympic) | Bianca van der Velden | 13 | ||||
| 2008 Summer Olympics | Artistic Swimming (Aquatics) | NED |
Sonja van der Velden | |||
| Duet, Women (Olympic) | Bianca van der Velden | 9 |
