The women's 200 metre breaststroke event, included in the swimming competition at the 1948 Summer Olympics, took place from 30 July to 3 August at the Empire Pool. In this event, swimmers covered four lengths of the 50-metre (160 ft) Olympic-sized pool employing the breaststroke. It was the fifth appearance of the event, which first appeared at the 1924 Summer Olympics in Paris. It was also the first appearance of the event since the outbreak of World War II. A total of 22 competitors from 14 nations participated in the event.
The men's 100 metres sprint event at the 1948 Olympic Games in London, England, we held at Wembley Stadium on 30 and 31 July. Sixty-three athletes from 33 nations competed; each nation was limited to 3 runners by rules set at the 1930 Olympic Congress. The final was won by American Harrison Dillard, in a photo finish. Lloyd LaBeach of Panama won his nation's first medal in the men's 100 metres, a bronze. This was the first time a photo finish camera was used at an Olympic Games. The photo finish equipment consisted of a photoelectric cell, called the Magic Eye, produced by Swiss watchmaker Omega and a slit photography camera produced by the British Race Finish Recording Company.
The men's 200 metres sprint event at the 1948 Summer Olympics took place between 2 August and 3 August. There were 51 competitors from 28 nations. The maximum number of athletes per nation had been set at 3 since the 1930 Olympic Congress. The final was won by American Mel Patton. His countryman Barney Ewell earned silver, making this the third consecutive Games the United States took the top two spots in the event. Lloyd La Beach's bronze gave Panama a medal in its debut in the event.
The men's 400 metres sprint event at the 1948 Olympic Games took place between August 4 and August 5. Fifty-three athletes from 28 nations competed. The maximum number of athletes per nation had been set at 3 since the 1930 Olympic Congress. The final was won by 0.2 seconds by Jamaican Arthur Wint coming from almost 10 meters back to catch teammate and world record holder Herb McKenley. This was Jamaica's first Olympic gold medal in their debut participation at the Games, and broke a string of 3 straight American victories in the men's 400 metres.
The men's 800 metres event at the 1948 Olympic Games took place July 30, July 31 and August 2. Forty-one athletes from 24 nations competed. The maximum number of athletes per nation had been set at 3 since the 1930 Olympic Congress. The final was won by the American Mal Whitfield. It was the first of Whitfield's two wins in the event, the second of four consecutive American victories, and the fifth overall United States win in the 800 metres. Arthur Wint earned Jamaica's first Olympic medal in their debut games with silver; he would take gold in the 400 metres a few days later. Marcel Hansenne took France's first 800 metres medal with bronze.
The men's 1500 metres event at the 1948 Olympic Games took place August 4 and August 6. Thirty-six athletes from 22 nations competed. The maximum number of athletes per nation had been set at 3 since the 1930 Olympic Congress. The final was won by Swede Henry Eriksson. It was Sweden's first medal in the 1500 metres; Lennart Strand took Sweden's second medal 0.6 seconds later. Willem Slijkhuis earned bronze, with the Netherlands also receiving its first medal in the 1500 metres.
The men's 5000 metres event at the 1948 Olympic Games took place July 31 and August 2. The final was won by Gaston Reiff of Belgium. The Belgian Gaston Reiff became the Olympic champion ahead of the Czechoslovakian Emil Zátopek. Willem Slijkhuis from the Netherlands won bronze.
The men's 110 metres hurdles event at the 1948 Summer Olympic Games took place on 3 and 4 August. Twenty-eight athletes from 18 nations competed. The maximum number of athletes per nation had been set at 3 since the 1930 Olympic Congress. The final was won by American William Porter. Porter's compatriots, Clyde Scott and Craig Dixon took 2nd and 3rd place. It was the third of nine consecutive American victories, and the ninth overall gold medal for the United States in the 110 metres hurdles. It was also the first of four consecutive American podium sweeps, and the fifth overall sweep by the United States in the event.
The men's 400 metres hurdles event at the 1948 Summer Olympic Games took place July 30 and July 31. There were 25 competitors from 17 nations. The maximum number of athletes per nation had been set at 3 since the 1930 Olympic Congress. The final was won by American Roy Cochran. It was the nation's second consecutive and seventh overall victory in the event. Duncan White won Ceylon's first Olympic medal in any event with his silver. As of the 2016 Games, it remains the only medal won by a male competitor from Ceylon/Sri Lanka; the nation has won one other medal, Susanthika Jayasinghe's silver in the 2000 women's 200 metres. Sweden's first medal in the men's 400 metres hurdles was won by Rune Larsson, taking bronze.
The men's 3000 metres steeplechase event at the 1948 Summer Olympic Games took place on 3 and 5 August. The final was won by Swede Tore Sjöstrand. Sjöstrand's compatriots, Erik Elmsäter and Göte Hagström took 2nd and 3rd place.
The men's 4 × 100 metres relay event at the 1948 Olympic Games took place on August 6 & August 7. The United States team won the final, but was initially disqualified when officials thought the pass between Barney Ewell and Lorenzo Wright had taken place outside the zone. After further review, officials saw that the pass took place inside the zone, and restored U.S. results.
The men's 4 × 400 metres relay event at the 1948 Olympic Games took place on 6 and 7 August. The United States team won the final with a time of 3:10.4.
The men's 10 kilometres walk event at the 1948 Summer Olympic Games took place from 3 to 7 August. The final was won by Swede John Mikaelsson. This was the first time since 1924 the event took place.
The men's shot put event was part of the track and field athletics programme at the 1948 Summer Olympics. Twenty-four athletes from 15 nations competed. The maximum number of athletes per nation had been set at 3 since the 1930 Olympic Congress. The competition was held on 3 August. The final was won by American Wilbur Thompson. Thompson's compatriots, Jim Delaney and Jim Fuchs took 2nd and 3rd place. It was the ninth time that an American had won the event, and the fifth time that the Americans had swept the medals.
The women's 100 metres sprint event at the 1948 Olympic Games took place July 31 and August 2. The final was won by Dutchwoman Fanny Blankers-Koen.
The women's 80 metres hurdles event at the 1948 Summer Olympic Games took place on 3 and 4 August. The final was won by Dutch athlete Fanny Blankers-Koen.
The women's 4 × 100 metres relay event at the 1948 Olympic Games took place on August 7. The Dutch team won with a time of 47.5.
The men's 200 metres competition at the 2012 Summer Olympics in London, United Kingdom was held at the Olympic Stadium on 7–9 August. There were 54 competitors from 40 nations. The event was won by Usain Bolt of Jamaica, the first man to repeat as champion in the 200 metres. His teammates Yohan Blake (silver) and Warren Weir (bronze) completed the medal sweep; it was the seventh sweep in the men's 200 metres and the first by a nation other than the United States. Bolt's gold medal was Jamaica's third in the event, moving out of a tie with Canada and Italy for second-most overall.
The men's 800 metres competition at the 2012 Summer Olympics in London, United Kingdom, was held at the Olympic Stadium on 6–9 August. Fifty-five athletes from 43 nations competed. The event was won by 0.82 seconds by David Rudisha of Kenya, the second consecutive and fourth overall title for Kenya in the event. Rudisha would later become the fourth man to successfully defend his Olympic 800 metres title, and the 11th to win two medals of any kind in the event. Nijel Amos' silver medal was the first Olympic medal ever for Botswana. Timothy Kitum of Kenya won the bronze medal.
The men's tandem cycling event at the 1948 Summer Olympics took place between 7 and 11 August and was one of six events at the 1948 Olympics.
