| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Klaas Erik "Klaas-Erik"•Zwering | |
| Used name | Klaas-Erik•Zwering | |
| Born | 19 May 1981 in Eindhoven, Noord-Brabant |  NED |
| Measurements | 189 cm / 80 kg | |
| Affiliations | Philips Sport Vereniging (PSV), Eindhoven | |
| NOC | Netherlands | NED |
| Medals | OG |
| Gold | 0 |
| Silver | 1 |
| Bronze | 0 |
| Total | 1 |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2000 Summer Olympics | Swimming (Aquatics) | NED |
Klaas-Erik Zwering | |||
| 200 metres Backstroke, Men (Olympic) | 10 | |||||
| 4 × 100 metres Medley Relay, Men (Olympic) | Netherlands | 4 | ||||
| 2004 Summer Olympics | Swimming (Aquatics) | NED |
Klaas-Erik Zwering | |||
| 4 × 100 metres Freestyle Relay, Men (Olympic) | Netherlands | 2 | Silver |
