World no.1 opened his Australian Open campaign with a 6-3, 6-2, 6-4 win over qualifier from Slovenia Aljaz Bedene (116) on Tuesday.
Novak successfully started his 2015 season in singles on Tuesday with a convincing 6-2, 6-1 win over Dusan Lajovic at the Qatar ExxonMobil Open.
Nole moved to 20-0 at the China Open with a 6-2 6-1 win over Spaniard Guillermo Garcia-Lopez on Tuesday.
The top seed closed out a routine 6-1, 6-2, 6-4 win over world no.79 Diego Schwartzman to advance into the second round of the 2014 US Open on Monday night.
Novak and Stan beat Cabal/Marrero 6-3, 7-5 to advance into second round of doubles competition at the Rogers Cup in Toronto.
Nole opened his 2014 Wimbledon campaign with a 6-0, 6-1, 6-4 win over Andrey Golubev in one hour and 28 minutes.
The 2014 Roland Garros second seed began his campaign with a 6-1, 6-2, 6-4 victory over Joao Sousa of Portugal.
Top seed and four-time champion opened his title defence with a 6-3, 6-3 win over Denis Istomin of Uzbekistan on Tuesday.
Novak advanced to the second round of the 2014 Australian Open with a 6-3, 7-6 (2), 6-1 win over Lukas Lacko of Slovakia on Monday.
Novak opened his title defence in convincing fashion, beating Lukas Rosol 6-0, 6-3 in just 53 minutes on Tuesday.