Golden girl Jennie Finch inspired the USA softball team to a 7-0 win over Italy on the first day of action.
Jennie Finch gave up no hits against Italy
Finch worked three scoreless innings, striking out five and giving up no hits as the USA began their bid for a third-straight Olympic crown.
Australia, who play the USA on Sunday, signalled their intentions with a 4-2 victory over Japan.
Canada beat Taiwan 2-0 and China downed host nation Greece, with their squad of mostly Greek-American imports, 5-0.