Mon July 16, 2012 3:56pm
SERENA Williams has become the first woman since 2006 to back up a title at the WTA Stanford event after defeating lucky loser Coco Vandeweghe 7-5 6-3.
The five-time Wimbledon winner's title defence came six years after Kim Clijsters completed her double.
Vandeweghe, ranked 120 but set for a rise into the top 75, was bidding for history in hopes of becoming the second lucky loser from qualifying rounds to win a WTA title.
The Californian got into the field after another player withdrew before the start.
Williams has two trophies in as many weeks after winning Wimbledon last weekend, then flying to northern California to shift onto the hardcourts.
The world No.4 now owns 43 career titles, the same number as her sister Venus.
Williams also has four wins in 2012, putting her joint leader in that category alongside world number one Victoria Azarenka.