| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Female | |
| Full name | Mathilde Anne "Tilly"•Decker (-Weydert) | |
| Used name | Tilly•Decker | |
| Born | 10 January 1930 in Esch-sur-Alzette, Luxembourg |  LUX |
| Measurements | 172 cm / 56 kg | |
| NOC | Luxembourg | LUX |
Personal Bests: 100 – 12.4 (1947); 200 – 26.5 (1946).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1948 Summer Olympics | Athletics | LUX |
Tilly Decker | |||
| 100 metres, Women (Olympic) | 5 h2 r1/3 | |||||
| 200 metres, Women (Olympic) | 5 h5 r1/3 |
