| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Alfonso Sergio Oronzo•Marotta | |
| Used name | Alfonso•Marotta | |
| Born | 2 August 1923 in Avellino, Avellino |  ITA |
| Died | 16 May 1982 (aged 58 years 9 months 14 days) in Roma, Roma | ITA |
| NOC | Italy | ITA |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1952 Summer Olympics | Modern Pentathlon | ITA |
Alfonso Marotta | |||
| Individual, Men (Olympic) | 31 | |||||
| Team, Men (Olympic) | Italy | 11 |
