| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Horst Roland•Niehaus Bonilla |
| Used name | Horst•Niehaus |
| Born | 23 July 1968 in San José, San José (CRC) |
| Measurements | 180 cm / 80 kg |
| NOC |  Costa Rica |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1988 Summer Olympics | Swimming (Aquatics) | CRC |
Horst Niehaus | |||
| 100 metres Backstroke, Men (Olympic) | =42 | |||||
| 200 metres Backstroke, Men (Olympic) | 34 | |||||
| 200 metres Individual Medley, Men (Olympic) | 44 |
