Complex sentence: In 1989 he won the Standard Life Amateur Champion Gold Medal, the oldest open amateur stroke play tournament in the world with a 4 under total of 280 and in 1991 the Scottish Amateur Stroke Play Championship, and participated in the 1991 Walker Cup.
Split into simpler sentences: In 1989 he won the Standard Life Amateur Champion Gold Medal with a 4 under total of 280. He won the 1991 Scottish Amateur Stroke Play Championship and participated in the 1991 Walker Cup.