| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Marco Antonio•Fión Castellanos | |
| Used name | Marco•Fión | |
| Nick/petnames | Maco | |
| Born | 17 January 1947 in Santa Elena de la Cruz, Petén |  GUA |
| Died | 9 September 2018 (aged 71 years 7 months 23 days) in Ciudad de Guatemala (Guatemala City), Guatemala | GUA |
| Measurements | 178 cm / 71 kg | |
| Affiliations | Aurora FC — Ciudad de Guatemala (Guatemala City), Guatemala | GUA |
| NOC | Guatemala | GUA |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1976 Summer Olympics | Football (Football) | GUA |
Marco Fión | |||
| Football, Men (Olympic) | Guatemala | =9 |
