| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Johannes Antonius Constantius Marie "Jan"•Grijseels |
| Used name | Jan•Grijseels |
| Born | 6 October 1890 in Abcoude-Proosdij, Utrecht (NED) |
| Died | 10 May 1961 in Noordwijkerhout, Zuid-Holland (NED) |
| Measurements | 177 cm |
| Affiliations | UD, Deventer (NED) / AFC, Amsterdam (NED) |
| NOC | Netherlands |
Personal Bests: 100 – 10.7 (1912); 200 – 21.8 (1914).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1912 Summer Olympics | Athletics | NED |
Jan Grijseels | |||
| 100 metres, Men (Olympic) | AC h7 r1/3 | |||||
| 200 metres, Men (Olympic) | 6 h4 r2/3 | |||||
| 400 metres, Men (Olympic) |