The middle-heavyweight division is added in Helsinki, moving the heavyweight class up from 82.5 kilograms to 90kg. 

Victory for Norbert Schemansky in the newly-created category is one of four golds for the United States, who top the medals table for the second Games in a row.

Their champions include John Davis who makes it back-to-back heavyweight titles.

The United States topped the medal table again in Helsinki ©Getty Images
The United States topped the medal table again in Helsinki ©Getty Images