Australian Peter Luczak sank deeper into a first-round rut, losing for the third straight week in his opening match with a 6-3 6-4 exit to Czech Jan Henych at the Swiss Indoors.
Marion Bartoli made a strong start on the opening day of the Bali Tournament of Champions with the No.1 seed winning a group match over Slovak Magdalena Rybarikova 6-4 6-4.
Britain's world No.4 Andy Murray had an easy return to action as he eased into the second round of the Valencia Open with a 6-3 6-1 victory over qualifier Daniel Gimeno-Traver of Spain.
Roger Federer eased through to the second round of the Davidoff Swiss Indoors Basel on his return from a layoff with a 6-3 6-4 victory over Belgian qualifier Olivier Rochus.
Serena Williams won her second career WTA Championships title with a commanding 6-2 7-6 (7/4) victory over sister Venus, a triumph which earned her a cool $1.55 million.
Croatian Ivan Ljubicic ended a title drought stretching back over two years as he claimed the Lyon ATP trophy beating Frenchman Mickael Llodra 7-6 6-3.