Chanda Rubin's fitness was the decisive factor as she overcame defending champion Lindsay Davenport to collect the JP Morgan Chase Open in Los Angeles.

In an all-American battle between the 26-year-olds, 12th seed Rubin outlasted her third-seeded opponent to win 5-7 7-6 (7/5) 6-3.

Former world number one Davenport is coming off major knee surgery and returned to tournament play only last month after a nine-month lay-off.

She began well but tired as Rubin got stronger, and could do little to halt the player who ousted Serena Williams in Friday's quarter-finals.

Rubin's win gave her a fifth career title, her second of the year after Eastbourne.

It also earned her 93,000 US dollars (£61,000) and took her to three million dollars (£1.97m) in career earnings.