| Roles | Referee |
|---|---|
| Sex | Male |
| Full name | Matthew Leigh•Kallio |
| Used name | Matthew•Kallio |
| Born | 26 September 1986 in Edmonton, Alberta (CAN) |
| NOC | Canada |
| Games | Sport (Discipline) / Event | NOC / Team | Phase | Unit | Role | As | |
|---|---|---|---|---|---|---|---|
| 2020 Summer Olympics | Basketball (Basketball) | CAN |
Matthew Kallio | ||||
| Basketball, Men (Olympic) | Final Round | Australia — Slovenia | Umpire 2 | ||||
| Basketball, Men (Olympic) | Quarter-Finals | Slovenia — Germany | Umpire 1 | ||||
| Basketball, Men (Olympic) | Group A | Czech Republic — Islamic Republic of Iran | Crew Chief | ||||
| Basketball, Men (Olympic) | Group C | Slovenia — Spain | Umpire 2 | ||||
| Basketball, Men (Olympic) | Group C | People's Republic of China — Australia | Crew Chief |