Victory for the Dane, who lost in the 2010 WTA final and twice in the US Open final, ends years of near misses on the biggest stage and caps a memorable 2017, where she reached eight finals and added a second title to the Pan Pacific crown which she won in September.
While Wozniacki put an end to her season of falling agonisingly short, it was another high profile runners-up finish for Williams, who had become the oldest woman to reach the final in the tournament's history, after beating Caroline Garcia in Saturday's semi-final.