| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Marius François Louis•Delaby |
| Used name | Marius•Delaby |
| Born | 13 June 1890 in Vendeuvre, Calvados (FRA) |
| Died | 1973 in Arras, Pas-de-Calais (FRA) |
| Affiliations | Sporting Club Versaillais, Versailles (FRA) |
| NOC | France |
Personal Bests: 100 – 11.0 (1912); 110H – 16.0 (1912); HJ – unknown.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1912 Summer Olympics | Athletics | FRA |
Marius Delaby | |||
| 100 metres, Men (Olympic) | AC h10 r1/3 | |||||
| 110 metres Hurdles, Men (Olympic) | 3 h2 r2/3 | |||||
| High Jump, Men (Olympic) | NP r1/2 | |||||
| Standing High Jump, Men (Olympic) |