Third seeds Juan Sebastian Cabal and Robert Farah comfortably moved into the second round at the Tokyo Olympics on Sunday with a 6-2, 6-4 win over Spaniards Pablo Carreno Busta and Alejandro Davidovich Fokina.

The Colombian team, who have lifted two tour-level titles this season in Barcelona and Dubai, hit six aces and won 77 per cent (23/30) of their first-service points to advance in 79 minutes.

Cabal and Farah will next face Austrian duo Oliver Marach and Philipp Oswald after they moved past Australians John Millman and Luke Saville 7-5, 6-2.

Italians Lorenzo Musetti and Lorenzo Sonego also advanced as they beat Spanish tandem Pablo Andujar and Roberto Carballes Baena 7-5, 6-4. #NextGenATP star Musetti and Sonego broke the Spaniards three times and they will next play top-seeded Croatians Nikola Mektic and Mate Pavic.

Another Croatian team, Marin Cilic and Ivan Dodig, also booked their spot in the second round. They defeated Japanese pair Taro Daniel and Yoshihito Nishioka 6-2, 6-4. Americans Rajeev Ram and Frances Tiafoe await next.