| Roles | Competed in Youth Olympic Games |
|---|---|
| Sex | Male |
| Full name | Ondrej•Kosztolányi |
| Used name | Ondrej•Kosztolányi |
| Born | 10 February 1995 |
| NOC |  Slovakia |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2012 Winter Youth Olympics | Biathlon | SVK |
Ondrej Kosztolányi | |||
| Sprint, Boys (YOG) | 41 | |||||
| Relay, Mixed Youth (YOG) | Slovakia | 17 | ||||
| Pursuit, Boys (YOG) | 36 | |||||
| Mixed Sports | SVK |
Ondrej Kosztolányi | ||||
| Cross-Country / Biathlon Relay, Mixed Youth (YOG) | Slovakia | 17 |
