Leroy was born in Prince Albert and following an accident that left him paralyzed from the waist down, he then became involved in wheelchair sports.
In national competition from 1968 to 1974, Leroy won a total of 37 medals in various wheelchair events. He received 10 gold, 12 silver, and 15 bronze medals in events such as club, shot put, discus, javelin, track, table tennis, basketball, and volleyball.
Internationally, he has competed and achieved excellent results in games associated with the Pan American Games and the Olympic Games, and he led a Canadian team to the Stoke Mandeville Wheelchair Games on two occasions.
At the Pan American Games in Winnipeg in 1967, Leroy was awarded a silver medal in the shot put and a bronze medal in the discus. He was named as captain of the basketball team at the 1967 Expo Games in Montreal. In 1968, he participated in basketball and volleyball at the Wheelchair Olympics in Tel Aviv, Israel. He was again chosen to the Canadian team for shot put and basketball at the 1972 Wheelchair Olympics held in Heidelberg, Germany. His best results occurred in the 1974 Stoke Mandeville Games with gold medal finishes in shot put and basketball and a silver medal in the discus.
Leroy is still active in sports and acts as a minor official at the Prince Albert Raider hockey games. He was inducted into the Prince Albert Sports Hall of Fame in 1990 and was selected for the Canadian Wheelchair Basketball Association’s Hall of Fame inaugural induction in 1995.
Installed in the Saskatchewan Sports Hall of Fame on June 15, 2002.