| Roles | Referee |
|---|---|
| Sex | Male |
| Full name | Alfonso•Villalba |
| Used name | Alfonso•Villalba |
| NOC |  Mexico |
| Games | Sport (Discipline) / Event | NOC / Team | Phase | Unit | Role | As | |
|---|---|---|---|---|---|---|---|
| 1968 Summer Olympics | Volleyball (Volleyball) | MEX |
Alfonso Villalba | ||||
| Volleyball, Men (Olympic) | Match #18 | East Germany — Belgium | Referee #2 | ||||
| Volleyball, Men (Olympic) | Match #33 | Czechoslovakia — Belgium | Referee #2 | ||||
| Volleyball, Women (Olympic) | Match #8 | Soviet Union — Poland | Referee #1 |
