Grant McLaren once held the Canadian records 2-mile indoor record, outdoor 2000m, 3000m, 3 mile, 5000m, 3000m Steeplechase. After a successful running career at the University of Guelph, Grant went on to represent Canada at numerous international events. In 1970, he participated at the Commonwealth Games in Edinburgh, Scotland where he finished 9th in the 3000m Steeplechase. In 1971, he participated in 3000m Steeplechase at the Pan Am Games, finishing 6th. He was also a member of two Olympic teams, donning the Maple Leaf at the 1972 Games in Munich, Germany and the 1976 Games in Montreal, where he ran the 5000m.