| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Julio Christian•Sieburger Hadler | |
| Used name | Julio•Sieburger | |
| Born | 5 March 1892 in Buenos Aires, Ciudad Autónoma de Buenos Aires |  ARG |
| Affiliations | Yacht Club Olivos — Olivos, Vicente López, Provincia de Buenos Aires | ARG |
| NOC | Argentina | ARG |
| Medals | OG |
| Gold | 0 |
| Silver | 1 |
| Bronze | 0 |
| Total | 1 |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1936 Summer Olympics | Sailing | ARG |
Julio Sieburger | |||
| Three-Person Keelboat, Open (Olympic) | Wiking | 4 | ||||
| 1948 Summer Olympics | Sailing | ARG |
Julio Sieburger | |||
| Three-Person Keelboat, Open (Olympic) | Djinn | 2 | Silver |
