| Roles | Referee |
|---|---|
| Sex | Male |
| Full name | Mariette•Withages |
| Used name | Mariette•Withages |
| NOC |  Belgium |
| Games | Sport (Discipline) / Event | NOC / Team | Phase | Unit | Role | As | |
|---|---|---|---|---|---|---|---|
| 2004 Summer Olympics | Equestrian Dressage (Equestrian) | BEL |
Mariette Withages | ||||
| Individual, Open (Olympic) | Grand Prix | Grand Prix | Judge M | ||||
| Individual, Open (Olympic) | Grand Prix Special | Grand Prix Special | Judge B | ||||
| Team, Open (Olympic) | Final Standings | Final Standings | Judge M | ||||
| Individual, Open (Olympic) | Grand Prix Kür Freestyle | Grand Prix Kür Freestyle | Judge C |
