Josh Prenot of the United States competes in the Men's 200m Breaststroke Final on Day 5 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 10, 2016 in Rio de Janeiro, Brazil.

Silver medalist Josh Prenot of the United States, gold medalist Dmitriy Balandin of Kazakhstan and bronze medalist Anton Chupkov of Russian Federation pose on the podium during the medal ceremony for the Men's 200m Breaststroke Final on Day 5 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 10, 2016 in Rio de Janeiro, Brazil.

Gold medalist Dmitriy Balandin of Kazakhstan (R) reacts with bronze medalist Anton Chupkov of Russian Federation after competing in the Men's 200m Breaststroke Final on Day 5 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 10, 2016 in Rio de Janeiro, Brazil.

London 2012 - Scotland’s Michael Jamieson swims a strong race in the 200m breaststroke to earn silver.

Ryosuke Irie of Japan competes in the Men's 200m Backstroke heat on Day 5 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 10, 2016 in Rio de Janeiro, Brazil.

Nanjing 2014 - Gold medalist Watanabe Ippei (C) of Japan, silver medalist Carlos Claverie (L) of Venezuela and bronze medalist Anton Chupkov of Russia on the podium during the awarding ceremony of men's 200m breaststroke event at Nanjing 2014 Youth Olympic Games in Nanjing, capital of Jiangsu Province, on Aug. 20, 2014.

Nanjing 2014 - Watanabe Ippei of Japan competes during men's 200m breaststroke final event at Nanjing 2014 Youth Olympic Games in Nanjing, capital of Jiangsu Province, Aug. 20, 2014. Watanabe won the gold medal.

Nanjing 2014 - Gold medalist Watanabe Ippei of Japan celebrates after winning men's 200m breaststroke event at Nanjing 2014 Youth Olympic Games in Nanjing, capital of Jiangsu Province, on Aug. 20, 2014.

Taylor McKeown (L) of Australia leads Rie Kaneto of Japan in the Women's 200m Breaststroke Final on Day 6 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 11, 2016 in Rio de Janeiro, Brazil.

Rie Kaneto of Japan leads the field in the Women's 200m Breaststroke Final on Day 6 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 11, 2016 in Rio de Janeiro, Brazil.