Athletics at the 1912 Summer Olympics Athletics at the 1912 Summer Olympics These are the results of athletics competition at the 1912 Summer Olympics. 30 events were contested, all for men only. The athletics programme grew by 4 events since the 1908 Summer Olympics. The 5000 and 10000 metre races were introduced, as the 5 mile event was eliminated. The 400 metre hurdle event made a brief disappearance, making the 1912 Olympics the only time that event was not held since its introduction in 1900. The 4x100 and 4x400 relays replaced the medley relay while the team race was shortened from 3 miles to 3000 metres.
1984 Summer Olympics 140 National Olympic Committees took part, which was a record at the time. The 1984 Summer Olympics are widely considered to be the most financially successful modern Olympics and serve as an example of how to run the model Olympic Games. As a result of low construction costs, coupled with a heavy reliance on private corporate funding, the 1984 Olympic Games generated a profit of more than $200 million. On July 18, 2009, a 25th anniversary celebration was held in the main Olympic Stadium. The celebration included a speech by the former president of the Los Angeles Olympic Organizing Committee,