| Roles | Competed in Olympic Games |
|---|---|
| Sex | Female |
| Full name | Ilse Adriana•Koolhaas |
| Used name | Ilse•Koolhaas |
| Born | 11 June 1997 |
| NOC |  Netherlands |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2020 Summer Olympics | Water Polo (Aquatics) | NED |
Ilse Koolhaas | |||
| Water Polo, Women (Olympic) | Netherlands | 6 |
