PowerPoint Show by Andrew

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More than halfway through the Summer Olympic games in Rio, over 150 gold medals have been awarded.

Here are some of the winners whose performances during competition earned them the top spot on the podium.

Gold medalist Emese Szasz, center, of Hungary, leaps onto the podium during a medal ceremony for the women's individual epee fencing match.

Davit Chakvetadze of Russia celebrates winning the gold medal after his victory against Zhan Belenyuk of Ukraine during the men's Greco-Roman 85 kg final.

Davit Chakvetadze of Russia celebrates winning the gold medal in the men's greco-roman 85 kg final after his victory against Zhan Belenyuk of Ukraine.

Gold medal winner China's Zhang Mengxue celebrates on the podium during the medal ceremony for the women's air pistol shooting event on Aug. 7.

Elia Viviani of Italy celebrates after winning gold in the men's Omnium cycling event at the Rio Olympic Velodrome.

Sanne Wevers of the Netherlands celebrates winning the gold medal after the balance beam final on Day 10 of the Rio 2016 Olympic Games.

Gold medalist Joseph Clarke of the United Kingdom reacts to winning the men's kayak slalom (K1) final.

Italy's Gold medalist Daniele Garozzo, on the podium after the men’s individual foil fencing event at the Carioca Arena 3.

Katie Ledecky on the United States competes on her way to winning the gold and setting a new world record in the women’s 800m freestyle final.

Gold medalist Katie Ledecky of the United States poses on the podium during the medal ceremony for the women's 400m freestyle final on Day 2 .

Gold medalist team Australia celebrate on the podium during the medal ceremony for the women's rugby sevens on Day 3.

Charlotte Dujardin of Great Britain riding ‘Valegro’ celebrates after winning the gold medal during the dressage individual grand prix freestyle on Day 10.

Gold medallist, Italy's Fabio Basile, celebrates on the podium of the men's 66 kg judo contest.

Gold medalist Suping Meng of China poses on the podium during the medal ceremony for the women's +75 kg Group A weightlifting on Day 9.

Gold medalists team Japan celebrate on the podium at the medal ceremony for the men's team final on Day 3.

Usain Bolt of Jamaica wins the gold medal in the men's 100m final for the third time.

Usain Bolt of Jamaica celebrates after placing first and the gold medal.

Charline Picon (left) of France celebrates after winning the gold medal in the women's RS:X class race of the sailing events in Rio de Janeiro.

Elena Vesnina and Ekaterina Makarova of Russia celebrate after winning their match against Martina Hingis and Timea Bacsinszky of Switzerland.

Bahamas Shaunae Miller falls over the finish line to win gold ahead of the United States Allyson Felix, right, in the women's 400-meter final.

Rostami Kianoushof Iran sets a new world record and celebrates winning the gold medal during the weightlifting men's 85 kg on Day 7.

Ruth Jebet (center) of Bahrain reacts after winning the gold medal in the women's 3000m steeplechase final.

South Korea's Hyejin Chang celebrates after defeating Germanys Lisa Unruh during the women's gold medal match at the Sambodromo archery venue.

Adam Peaty of Great Britain celebrates winning gold and setting a new world record in the men's 100m breaststroke final on Day 2.

Gold medalists in women's doubles Elena Vesnina and Ekaterina Makarova of Russia react after receiving their medals.

Giles Scott of Great Britain celebrates clinching a gold medal after his second finn class race on Day 8.

Wayde van Niekerk of South Africa reacts after winning the gold medal and setting a new world record in the men's 400m.

Gold medalist Simone Biles of the United States reacts to winning the women's floor final.

South Africa's Chad Le Clos, top, looks toward gold medal winner Michael Phelps in the men's 200-meter butterfly final.

Gold medalist Michael Phelps of the United States celebrates on the podium during the medal ceremony for the men's 200m butterfly final on Day 4.