| Board of Directors | 1987 - 1989 | |||
| Canadian Mathematical Olympiad Committee | 1987 - 1989 | , ex-officio | , served as chair | |
| Crux Mathematicorum Editorial Board | 1991 - 1994 | |||
| International Mathematical Olympiad Committee | 1994 - 1994 | , ex-officio | ||
| International Mathematical Olympiad Committee | 1995 - 1996 | , served as chair |
