The No.2-seeded Kvitova didn't drop a set all week and continued that momentum against the unseeded Rybarikova, nearly letting go of a 5-2 lead in the first set - losing two games in a row for it to be cut down to 5-4 - but eventually closing that out and cruising to victory in straights, 6-4, 6-2.
"Serving at 5-3, I knew I was serving for the set, so it's always a little bit difficult," Kvitova said. "I was a little bit hectic. It was quite new balls as well. There were a few times where I was pushing her, but then I would miss the last shot. I think I just lost my concentration a little bit at times in the first set.
"But the most important thing was I broke her for the set, and then kept my concentration."
It was a happy ending to a summer hardcourt season that saw her exit early at her first two events.
"It wasn't really great in Montréal, but I still felt pretty good over there. It was also my first tournament after Wimbledon," the Czech said. "I had a bad loss against Makarova though, and in Cincinnati I struggled a lot, not really finding my confidence. It was a really difficult few weeks for me.
Now with two WTA titles on the year - the aforementioned Wimbledon run was her first - Kvitova will not only bring a renewed level of confidence into the US Open, the only Grand Slam she has never been to the quarterfinals of, but she will also move from No.8 to No.6 on the Road To Singapore leaderboard, the year-long journey to the BNP Paribas WTA Finals Singapore presented by SC Global.
It was still a dream week for Rybarikova too. She not only scored the best win of her career against Halep earlier in the week, but she also eventually made it all the way to her first Premier final.
Earlier in the day, Andreja Klepac and Sílvia Soler-Espinosa won the doubles title, beating Marina Erakovic and Arantxa Parra Santonja in the final, 7-5, 4-6, 10-7. Klepac and Soler-Espinosa, who had taken out No.2 seeds Kveta Peschke and Katarina Srebotnik in their first match of the week, won their first WTA doubles title together - for Soler-Espinosa it was her very first WTA title of any kind.