Grigor Dimitrov captured his seventh and biggest career title Sunday, defeating Australia’s Nick Kyrgios 6-3, 7-5 to win the Cincinnati Masters and boost his confidence for the US Open.

The 11th-ranked Bulgarian never dropped a set in taking the top prize of $954,225 and his first Masters title, a perfect stepping stone into the year’s last Grand Slam event that begins a week from Monday.

“In the big picture, it means a lot to me,” Dimitrov said. “I’m pretty confident after that win. This is what I’ve been practicing for. It’s my biggest win so far.

“I’m going to enjoy it for a day or two but then it’s back to the routine and prepare for the US Open.”

In the highest-level ATP final ever contested between two players born in the 1990s, Dimitrov collected his tour-best 24th hardcourt match victory of the year and third title of 2017 after Brisbane and Sofia.

“To have this trophy in my hand, it’s just amazing. Going to the Open, it’s a lot of positivity,” said Dimitrov, on his hottest run since starting the season 16-1.

Kyrgios, who ousted Monday’s new world No 1 Rafael Nadal in the quarter-finals, has not won an ATP title since taking his third last year in Tokyo.

After battling a hip injury and lack of motivation three weeks ago in Washington, Kyrgios was thrilled at the run to his biggest final yet.

“From where I was to here, it’s just amazing,” Kyrgios said. “I just feel the way I should. I just didn’t want to be out there. I lost today but I feel great with where I’m at now.

“I’m pretty excited for the US Open, enjoying getting out there and getting some wins again.”

Rising from that disheartened low point to a Masters final was a shocker, Kyrgios said.

“That’s a very Nick Kyrgios thing to do,” he said. “Crazy. I really don’t know how I did it. It’s a miracle.”

‘I was so nervous’

Not since Guillermo Canas beat Andy Roddick in 2002 at Toronto had two first-time ATP Masters finalists met for a Masters crown.

“I was so nervous,” Dimitrov said. “I tried to contain myself. It was one of those matches I knew I could beat him but you never know what’s going to come out against you.”

“I could have done a few things better. But nerves were there. At the end of the day I was just going for it.”

Kyrgios, ranked 23rd, squandered a break chance in the fifth game, sending a forehand wide, and Dimitrov broke in the sixth when the Aussie netted a forehand to seize a 4-2 lead, then held twice to take the first set.

“The first set was very important for sure,” Dimitrov said. “I had to find a way to get a few balls back. It came down to a few points and I held my nerve.

“He can generate a lot of power from any position at any time. That’s what kept me on my toes the whole time.”

Kyrgios used an ace and a service winner to save two break points before holding in the seventh game of the second set.

But Kyrgios double faulted twice in three points to hand Dimitrov a break point and then swatted a forehand beyond the baseline to surrender a break and a 6-5 edge.

Dimitrov, 26, then held for the title, clinching the trophy when Kyrgios, 22, netted a forehand after 85 minutes.