| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Jacobus "Koos"•Issard | |
| Used name | Koos•Issard | |
| Born | 28 February 1971 in Hilversum, Noord-Holland |  NED |
| Measurements | 198 cm / 98 kg | |
| Affiliations | Polar Bears, Ede | |
| NOC | Netherlands | NED |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1992 Summer Olympics | Water Polo (Aquatics) | NED |
Koos Issard | |||
| Water Polo, Men (Olympic) | Netherlands | 9 | ||||
| 1996 Summer Olympics | Water Polo (Aquatics) | NED |
Koos Issard | |||
| Water Polo, Men (Olympic) | Netherlands | 10 |
