|Representing Great Britain|
|1981 Santa Clara||Men's doubles|
|1986 Edinburgh||Men's doubles|
|1978 Edmonton||Mixed doubles|
Although he won the Scottish national singles title in 1979, the tall, angular Gilliland was a doubles specialist at the international level with his greatest success coming in mixed doubles. Gilliland won mixed doubles at the prestigious All-England Championships with England's Nora Perry in 1985. He had previously reached the All-England final in both men's doubles and mixed doubles in 1982. He was a mixed doubles bronze medalist at the 1977 IBF World Championships with Joanna Flockhart. Though he won numerous tournaments abroad, perhaps Gilliland's most impressive badminton accomplishment was sharing twelve consecutive Scottish national mixed doubles titles equally with two partners, between 1976 and 1987. With regular partner Dan Travers, he won nine Scottish national men's doubles titles during that period, and men's doubles at the Commonwealth Games in 1986. He now coaches badminton in a badminton academy.
|1981||San Jose Civic Auditorium, California, United States||Dan Travers|| Thomas Kihlström
|15–10, 0–15, 9–15||Bronze|
IBF World Grand PrixEdit
The World Badminton Grand Prix sanctioned by International Badminton Federation (IBF) from 1983 to 2006.
|1984||Dutch Open||Dipak Tailor|| Michael Kjeldsen
|9–15, 15–7, 17–18||Runner-up|
|1984||Canada Open||Dan Travers|| Razif Sidek
|1985||Canada Open||Dan Travers|| Jens Peter Nierhoff
|1985||Scottish Open||Dan Travers|| Michael Kjeldsen
|1986||Dutch Open||Dan Travers|| He Xiangyang
|1986||Scottish Open||Dan Travers|| Jesper Knudsen