BBC Sport statistician Mark Butler has written the first of a new series of columns on the numbers behind the big races.
He takes a look at a revolutionary timing system that reveals the tactics behind success in Olympic track finals.
Among the highlights:
> A fast back straight, rather than finishing burst, clinched victory in many races.
> Britain's Lisa Dobriskey may not have made the tactical error many believed in finishing fourth in the 1500m.
> Women's 10,000m champion Tirunesh Dibaba ran a section faster than Britain's Mo Farah in his heat of the men's 5,000m.
Have a look at the column here:
Mark will come on this thread to answer any questions you have and he is also keen to hear any ideas you have for future columns so let us know what you think.