David Chung Ming Mok was involved in the fencing community of Melbourne as a competitor, coach, referee, and mentor. Mok was highly regarded as a national referee and was a coach to several successful Australian fencers. At the VRI Club in Richmond politician Bill Shorten, who himself was an under-15 state champion in the sabre, described Mok as a fencing master. Mok was a referee at his home Olympics in Sydney in 2000 where he officiated several bouts in foil and épée contests.
| Games | Sport (Discipline) / Event | NOC / Team | Phase | Unit | Role | As | |
|---|---|---|---|---|---|---|---|
| 2000 Summer Olympics | Fencing |  AUS |
David Mok | ||||
| Foil, Individual, Men (Olympic) | Bout #8 | Serhiy Holubytskyi — James Beevers | Referee | ||||
| Foil, Individual, Men (Olympic) | Bout #15 | James Beevers — Marco Martins | Referee | ||||
| Épée, Individual, Women (Olympic) | Bout #7 | Tatyana Logunova — Go Jeong-Jeon | Referee | ||||
| Épée, Team, Women (Olympic) | Match 7/8 | Cuba — Norway | Referee |
