Rafael Nadal claimed his first tournament win since his injury layoff at the Brazil Open.
The former world number one beat Argentine David Nalbandian in straight sets 6-2, 6-3.
The win ended a title drought stretching back to last year's French Open, since when the Spaniard has been sidelined by tendon trouble in his left knee.
Nadal reached the Chile Open final last week in his first tournament since Wimbledon last June.
Argentina's Juan Martin Del Potro beat Julien Benneteau 7-6 6-3 in the final of the World Indoor Tournament in Rotterdam.
Defending champion Victoria Azarenka beat the new world number one Serena Williams in the final of the Qatar Open.
Azarenka won in three sets 7-6 2-6 6-3.
