These two companies, which jointly sponsored the Australian Open, said the decision to go to Manly stemmed from the success of the U.S. Open at Huntington Beach, Calif.

WSJ: Surfers Weigh Big Bucks, Big Waves; Australian Open

Watson, a quarter-finalist in this year's Australian Open juniors, held the opening game of the second set and broke again to go 2-0 up.

BBC: Watson wins US Open girls' title