As an Amateur
- Scottish Under -19 Stroke Play Champion 1975
- Scottish Girls Internationalist 1975-76-77
- British Girls Champion 1976
- 3 times Scottish Women’s Champion 1979-83-84
- Twice winner of the Helen Holm Trophy 1981-84
- Twice a Curtis Cup player 1980-82
- Nine times Scottish and seven times British Internationalist
- Avia Watches Woman Golfer of the Year 1984
As a Professional (turned professional in 1985)
- 4 wins on Ladies European Tour
- 1994 King Hassan II Trophy, Dar-Es-Salam, Morocco
- 1987 Ford Classic, Woburn
- 1985 Ford Classic, Woburn
- 1984 IBM European Open, The Belfry
- Won 1st event played as a Professional – Ford Classic, Woburn
- One of the most consistent players on Tour. As well as 4 Tournament wins she also recorded 69 Top Ten Tournament finishes and finished 4 times in the top Ten of the European Tour Order of Merit
- Holder of Professional Course Records at Olching G.C., Munich – 67, Olgiata G.C., Rome – 65
Gillian is the current holder of the European Women’s record for the number of consecutive cuts made on Tour – 79 (between 1986 and 1991)