Caroline Wozniacki's incredible year was capped off in the flawless way as she claimed the biggest title of her career at the 2017 WTA Finals after earning her first ever victory over Venus Williams in eight attempts, prevailing 6-4, 6-4.
Down 5-0 in the second set, Williams rallied to win four consecutive games.
It looked like an impossible task, but like the champion that she is, Williams hung tough, showing a combination of grit and skill as she made Wozniacki chase balls that seemed to fly off her racquet at a dizzying speed.
It was all but over when Williams went down a double-break deficit after wasting another game point in the process, and Wozniacki was just unstoppable as she also managed to produce some incredible defensive skills.
Eventually she closed it out and lifted the Billie Jean King Trophy. "I'll try to play a little better earlier next time".
Asked about her targets for next season, she said: "Right now, I'm just going to focus on this and really take it in".
Unafraid to swing for winners against an opponent whom she said treats her like a little sister, Wozniacki also posted only a few unforced errors - eight, incidentally - over a match that lasted 1hr 29min. "The past season has been complicated because of the injuries, but I fought to come back", she said.More news: Kevin Spacey's Emmy honour rescinded following sexual assault claim
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After a tight first set in which both players lost their serve twice, Wozniacki broke decisively in game ten. Nerves began to hinder Wozniacki from getting over the finish line as she started to get frustrated with herself, allowing Williams to retrieve one of the breaks back.
With the momentum and crowd behind the veteran American by then, a player known for her defensive prowess went back to what had worked all week: fearless tennis.
It was the 27-year-old's first victory over Venus in her career. This was Wozniacki's incredible eighth final of the year, and she leads the tour in this aspect.
"I haven't thought much about next season, so for now I'm just going to live in the moment and see how things go".
And who knows, she might finally get that elusive grand slam title as well.
"Well, now I don't feel any pressure because the season is finished but I can imagine that it's going to be a little bit more hard", she said.