Novak clinched his 18th ATP World Tour Masters 1000 title on Sunday with a 6-3, 6-3 victory over top seed Rafael Nadal.
World no.2 captured the BNP Paribas Open title for the third time coming back from a set down to beat Roger Federer 3-6, 6-3, 7-6.
Novak came back from a break down in both sets to beat defending champion David Ferrer 7-5, 7-5 and win his 40th career trophy.
Novak won his 39th career crown and 15h Masters trophy when he beat Juan Martin del Potro 6-1, 3-6, 7-6 (3) in Shanghai Masters final.
Novak came back from a set down and saved five match points before defeating two-time defending champion, no.3 seed Andy Murray, 5-7, 7-6 (11), 6-3 in 3 hours and 21 minutes in a blockbuster final on Sunday to capture his first Shanghai Rolex Masters title.