The second-seeded Williams knocked off Hingis in her homeland, 6-3, 6-4, to collect her sixth title of the year and a first prize of $150,000. The 19-year-old American lost the first two games before making quick work of the Swiss native.

Williams managed to beat the top seed and earn the ninth title of her brief career despite playing without the presence of her father, Richard, or sister, Serena.

To help atone for her 31 unforced errors, Williams collected seven aces and 17 winners. Hingis had no aces and just two winners.

This marks the second time in three weeks that Williams has taken another meeting in this budding rivalry. She also beat Hingis in the semifinals of the Grand Slam Cup two weeks ago, avenging a semifinal loss to her at the U.S. Open. Williams has won three of five matches against Hingis this season.

Williams, the runner-up here last year, improved to 52-9 on the WTA Tour this season. She is 39-8 on hard courts, having earned three titles on this surface.

While Williams won her 10th final of the year, Hingis was participating in her 11th and remained stuck on a WTA Tour-leading seven titles. She beat Mary Pierce to win last week's Porsche Tennis Grand Prix.

The tour's top players will be in Moscow, Russia next week for the Ladies Kremlin Cup, where Pierce is the defending champion.