| Roles | Referee |
|---|---|
| Sex | Male |
| Full name | Choi•Gil-Su |
| Used name | Choi•Gil-Su |
| Name order | Oriental |
| Original name | 최•길수 |
| Born | 11 December 1944 |
| NOC | Republic of Korea |
| Games | Sport (Discipline) / Event | NOC / Team | Phase | Unit | Role | As | |
|---|---|---|---|---|---|---|---|
| 1988 Summer Olympics | Football (Football) | KOR |
Choi Gil-Su | ||||
| Football, Men (Olympic) | Match #4 | Iraq — Guatemala | Linesman | ||||
| Football, Men (Olympic) | Match #3 | Yugoslavia — Nigeria | Referee | ||||
| Football, Men (Olympic) | Match #5 | Brazil — Yugoslavia | Linesman |