The No.1-seeded Kvitova was putting on a masterclass of raising her game in the important moments for most of the match, building a 60 40 lead, and fending off a whopping 15 game points from Cadantu during that stretch - and Cadantu's disappointment at those unlucky breaks was really showing.
"It was tough because I had so many game points and advantages in the first 10 games, and it really meant so much to me to do well today - also for the spectators, my coach, everybody," Cadantu said. "It was a really bad feeling when I couldn't make those games. It was very unlucky for me - every game point I had she was hitting a line, or the net, or something like that. It was so unlucky for me.
"But when I won that first game, I felt so good."
Cadantu held serve at love in the 11th game of the match, raised her arms in the air on her way back to her changeover chair, then proceeded to win three more games to draw even in the second set, 4-4.
The Romanian qualifier won the first point of her next service game but Kvitova turned it around again just in time, winning eight of the last nine points of the match to close Cadantu out in straights, 60 64, blasting one last backhand winner on match point to book her spot in the final of the inaugural event.
"A lot of the games were really close throughout the match and we were having a lot of rallies," Kvitova said of the early goings. "It was very important for me to stay in the game and just fight for every point, because I know she's a big fighter. The score looks easy but it really wasn't easy at all."
How did Kvitova feel about the second set? "I felt a little bit without energy after the first set," she said. "I was so glad I was leading 4-0, but then she tried to play much more aggressively and without rallies, and I did some mistakes, and suddenly it was 4-all. I just made sure to stay in the game and try to win in straight sets because I didn't know what would happen in a third set. I'm happy I made it."
Kvitova has now won 35 of her last 39 indoor matches, a stretch dating back to the start of 2011.
This will be Kvitova's 13th WTA final. She has a very strong 10-2 record in her first 12 finals, winning one title in 2009 (Hobart), six in 2010 (Brisbane, Paris [Indoors], Madrid, Wimbledon, Linz and the WTA Championships), two in 2012 (Montréal and New Haven) and one so far this year (Dubai).
"I played her on a grass court at Wimbledon in 2011 and I remember it a little bit," Kvitova said. "But that's totally different than the clay, and she's playing very well these days, and doing very well here, especially. And she also plays a different game compared to the other players out there, with slice and drop shots - there are a lot of different shots in her game. I'll have to adjust. It will be a nice match."