Mark Koelker
Biographical information
| Roles | Referee |
|---|---|
| Sex | Male |
| Full name | Mark•Koelker |
| Used name | Mark•Koelker |
| Born | 29 September 1981 |
| NOC |  United States |
Referee
| Games | Sport (Discipline) / Event | NOC / Team | Phase | Unit | Role | As | |
|---|---|---|---|---|---|---|---|
| 2024 Winter Youth Olympics | Snowboarding (Skiing) | USA |
Mark Koelker | ||||
| Slopestyle, Boys (YOG) | Final Standings | Judge #5 | |||||
| Slopestyle, Girls (YOG) | Final Standings | Judge #5 | |||||
| Big Air, Girls (YOG) | Qualifying Round | Judge #5 | |||||
| Halfpipe, Boys (YOG) | Final Standings | Judge #5 | |||||
| Halfpipe, Girls (YOG) | Final Standings | Judge #5 | |||||
| Big Air, Boys (YOG) | Final Round | Judge #5 | |||||
| Big Air, Boys (YOG) | Qualifying Round | Judge #5 | |||||
| Big Air, Girls (YOG) | Final Round | Judge #5 |