CINCINNATI, OH, USA - No.4 seed Garbiñe Muguruza won the last 10 games to see off qualifier Beatriz Haddad Maia in her first match of the Western & Southern Open on Tuesday night, cruising to a 6-2, 6-0 victory.

"I felt like a lot of games were super tight. She's super tall, big serve with big shots. It was a strange result, because the match was pretty good," Muguruza assessed after the match. "I feel like yesterday I was playing on the grass, and now I'm here. I'm happy to be in the third round here."

From 2-2 in the opening set, Muguruza proved too much for the Brazilian lefty, as she broke serve a total of six times in the 65-minute encounter.

After trading breaks over the course of the first four games, Mugruuza stamped her authority on the match in a big way, particularly on the Brazilian's second serve. 

Muguruza won 11 of 12 points played behind Haddad Maia's second serve in the opening set, as she clinched her second break of the set with crisp returning from the baseline, and added a second insurance break in the seventh game with help from the lefty's two double faults of the set.

To her credit, the World No.6 delivered on serve when it mattered in the tight moments of the opening, winning both service games in the last four from 30-30.

The second set went entirely with the Wimbledon champion, as she broke on three of her four opportunities en route to recording the bagel.

Muguruza won a commanding 12 of 17 points played on return in the second set, but was made to work in her final service game, as Haddad Maia created a 0-30 chance with two sweetly-struck winners down the line, and forced Muguruza to win the match on her third match point.

With the win, Mugruuza awaits the winner of Wednesday's second round match between Daria Kasatkina and No.16 seed Madison Keys.