Mrs Clarence Pinkaton , ( left ) who is the former Betty Becker , the Olympic diving champ of 1924 , and Olympic title holder in 1928 , is shown coaching Detroit Co-Ed , Virginia ' Ginny ' Fitzgerald , who , according to experts is a certainty to win the next Olympic title . In the first week the Empire pool was used for the swimming , diving and water polo events , in the second week the pool was drained and a stage put over the basin so that the boxing events could be staged in the same arena