The No.1-seeded Wozniacki dropped her first two service games of the match but went on cruise control from there, winning seven games in a row to build a 62 10 lead. Beck looked like she was going to push the match further as she served at 2-3, 30-15 in the second set, but Wozniacki stepped it up at that point, reeling off 11 points in a row - the last 11 points of the match - to close it out, 62 62.
Wozniacki had some very kind words for Beck in her acceptance speech at the trophy ceremony.
"I know there are a lot of Germans here so you probably wanted Annika to win today, but she had such a great week and she'll have many more finals to come," Wozniacki said. "Annika, you're a great player and a great fighter, and most of all you're a great person and fun to hang out with off the court. Your team is very nice too. Just keep working hard and I'm sure we'll have many more finals in the future.
"Thank you to all the fans who came out all week. This is a great event - we all love playing here."
There was one last thank you in order from the former World No.1 - or three, maybe.
"I also want to thank my dad, and my mom who's back at the hotel with little Bruno, who's my dog!"
It was Wozniacki's second time playing the final here - she barely lost to Elena Dementieva in the final here in 2008, coming within two points of winning that match. "Last time I was in the finals here it was five years ago," she said. "I'm really happy to make it a step further this year and take the title."
The Dane now has 21 WTA titles to her name - three in 2008, three in 2009, six in 2010, another six in 2011, two in 2012 and now one in 2013. And she might have a shot at one more this year - she will now head to Istanbul as the first alternate at the TEB BNP Paribas WTA Championships - Istanbul.
"Twenty-first title, it's great," Wozniacki commented. "I'm still young - I have a few more years to go - so to be at 21 already is just great. This is what you practice for, so to win is an amazing feeling."
The 19-year-old Beck, who was playing the first WTA final of her career, was very gracious in defeat.
"Caroline and I practiced once here and I was very nervous, and I was nervous today too!" Beck said. "But I never expected I'd be here until Sunday. I had a great week and played some great tennis, but Caroline was just too good today. When I lost my serve at 3-2 in the second set I tried to stay calm but she was playing great, so congratulations to her. She really deserved to win the tournament."
Earlier on in the day Stephanie Vogt and Yanina Wickmayer won the doubles title, defeating Kristina Barrois and Laura Thorpe in the final, 76(2) 64. Neither Vogt nor Wickmayer had ever won a WTA doubles title before - in fact Vogt, Liechtenstein's No.1 player, won her first WTA title of any kind.