Olympic gold medalists were Duncan Goodhew in 1980 and Adrian Moorhouse in 1988.
The country that won the Gold Medal in the men's 100 m breaststroke as part of the Rio Olympics in 2016 was Great Britain due to Adam Peaty of Great Britain winning first place.
Duncan Goodhew.
Gold medalist Kosuke Kitajima of Japan won the gold medal in men's 100 meter breaststroke at the 2008 Games in Beijing in a time of 58.91 seconds, a new world record.
Cameron van der BurghSouth Africa (RSA)
The swimming athlete who won the Gold Medal in the 2016 Rio Olympics' men's 100 m breaststroke was Adam Peaty of Great Britain.
Brendan HansenUnited States (USA)
The winner of the gold medal in the Women's 200m Breaststroke event at the Rio 2016 Olympics was Rie Kaneto.
The country that won the gold medal in the Women's 200m Breaststroke event at the Rio 2016 Olympics was Japan.
Adrian Moorhouse of Great Britain won gold in men's 100 meter breaststroke at the 1988 Summer Games in Seoul.
Kazakhstan won the gold medal in the men's 200 m breaststroke at the Rio 2016 Olympics.
Dmitriy Balandin of Kazakhstan won the gold medal in the men's 200 m breaststroke at the Rio 2016 Olympics.
United States won the gold medal in the women's 100 m breaststroke at the Rio 2016 Olympics.