Few people know that Bob Hayes went under 10 seconds in the 100 meters race at the Olympic Games in Tokyo in 1964. The record now is 9.58 seconds which was run by Usain Bolt. Also in sport we can use improvement techniques like Six Sigma.
An example of a successful project using Six Sigma was "Improving running time in the 100 m / Athletics". The key indicator which give the performance of the process and choose to be improved is running time until the completion (T).