| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Américo•Simonetti Mazzarelli | |
| Used name | Américo•Simonetti | |
| Born | 16 September 1936 in Santiago, Santiago Metropolitan |  CHI |
| Measurements | 175 cm / 65 kg | |
| Affiliations | Universidad Católica — Santiago, Santiago Metropolitan | CHI |
| NOC | Chile | CHI |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1964 Summer Olympics | Equestrian Jumping (Equestrian) | CHI |
Américo Simonetti | |||
| Individual, Open (Olympic) | Trago Amargo | 29 | ||||
| 1972 Summer Olympics | Equestrian Jumping (Equestrian) | CHI |
Américo Simonetti | |||
| Individual, Open (Olympic) | Altue | |||||
| Team, Open (Olympic) | Ataulfo / Chile | 9 | ||||
| 1984 Summer Olympics | Equestrian Jumping (Equestrian) | CHI |
Américo Simonetti | |||
| Individual, Open (Olympic) | Amaranto | =42 | ||||
| Team, Open (Olympic) | Amaranto / Chile | 14 |
