| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Johannes Gerardus "Jan"•Nicolaas | |
| Used name | Jan•Nicolaas | |
| Born | 20 October 1912 in Den Haag (The Hague), Zuid-Holland | |
| Died | 28 November 2001 (aged 89 years 1 month 8 days) in Rijswijk, Zuid-Holland | |
| Affiliations | Excelsior — Den Haag (The Hague), Zuid-Holland | |
| NOC | Netherlands |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1936 Summer Olympics | Boxing | Jan Nicolaas | ||||
| Featherweight, Men (Olympic) | =9 |