Nick Kyrgios has claimed the men's Brisbane International title with a comprehensive victory over American Ryan Harrison in the final, boosting his hopes for a successful Australian Open campaign.
World number 21 Kyrgios overcame another slow start to knock off Dimitrov for his first win over the Bulgarian and book his seventh overall career ATP World tour final berth.
Australian teenager Alex De Minaur delighted his home fans with an inspired performance to stun fourth seed Milos Raonic and move into the Brisbane Open quarter-finals on Wednesday.
Third-seeded Svitolina beat Belarusian qualifier Aliaksandra Sasnovich 6-2, 6-1 in a lopsided night final to win her 10th title on the women's elite tour.
Kyrgios, however, rose to the occasion for the win.
Kyrgios said: "He's definitely one of the best players in the world at the moment, he had a great end to previous year and played remarkably". I haven't won one in Australia before.
Kyrgios staved off five break points in the first set, including three in his third service game as the American Harrison made a terrific fist of dealing with the booming delivery of his opponent.
"I've got pretty fond memories here so it would be good to keep adding (to them)".
He has three singles titles but all were won during the 2016 season: Tokyo, Atlanta, Marseille.
A week later Harrison and Kokkinakis had to be separated by officials during a fiery match, with Harrison reportedly saying "Wawrinka should've decked Kyrgios and I should deck that kid."But apart from Kyrgios's frustration with Harrison leaving the court at the end of the first set, there was no evidence of tension and the two shook hands warmly at the end of the match".
He slotted seven aces and 15 winners to overwhelm Dimitrov and take the second set in 29 minutes.
A free-moving Kyrgios then cranked the pressure to another level in the second set, getting more balls in play on Harrison's serve as he eyed an early kill.
"I was just wondering about the rule, like why I couldn't take a medical timeout for the knee taping", he said.