Bulgarian Grigor Dimitrov has broken his 30-month title drought, beating Kei Nishikori 6-2, 2-6, 6-3, to win the Brisbane International on Sunday evening.

The title was Dimitrov'sย fifth of his career and first since June 2014, when he won Queen's Club in London.

The former-10 ranked player, who has well-known anger issues on court, after he was defaulted during a match last year after a third warning for racquet abuse, said he kept calm during the week in Brisbane by venturing to an arcade nightly with his team.

โ€œIt's given me tremendous joy from something so small,'' he saidย post match.

โ€œWe were the biggest kids out there, going at it for an hour and a half.

โ€œI can't lock myself in a room thinking about tennis 24 hours (a day). It's brutal.''

Dimitrov, currently ranked 17th in the world, says he will not get ahead of himself following the breakthrough win will.

โ€œI'll stay with my feet on the ground when I go to Melbourne,'' he said.

โ€œEveryone can beat anyone now. Things are changing. The so-called traditional (leading) players are starting to slow down a little bit. We all see that.''