Summary The five teams are playing a round-robin, with the two highest finishers to play Sunday for title.
OKLAHOMA CITY (AP) - Jessica Moore pitched a one-hit shutout to guide the United States to a 4-0 win over Australia on Friday in the World Cup of Softball.
Moore did not allow a baserunner until the fourth inning and gave up her only hit in the fifth for the hosts, who improved to a 2-0 record while Australia is 0-2.
Lauren Gibson hit a two-run single during a four-run third inning for the United States.
In Friday's other games, Canada (2-1) posted a pair of wins, beating Puerto Rico 13-3 and upsetting Japan 2-1. Japan fell to 1-1, while Puerto Rico is 0-1.
The five teams are playing a round-robin, with the two highest finishers to play Sunday for the title.
