| Roles | Competed in Olympic Games • Competed in Youth Olympic Games |
|---|---|
| Sex | Male |
| Full name | Jonatán•Vadnai |
| Used name | Jonatán•Vadnai |
| Born | 27 March 1998 in Veszprém, Veszprém (HUN) |
| NOC |  Hungary |
| Medals | YOG |
| Gold | 0 |
| Silver | 0 |
| Bronze | 1 |
| Total | 1 |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2014 Summer Youth Olympics | Sailing | HUN |
Jonatán Vadnai | |||
| One Person Dinghy, Boys (YOG) | 3 | Bronze | ||||
| 2024 Summer Olympics | Sailing | HUN |
Jonatán Vadnai | |||
| One Person Dinghy, Men (Olympic) | 4 |
