World No 2 Germany’s Angelique Kerber beat Czech player Karolina Pliskova 6-3, 4-6, 6-4 in the US Open women’s final match in Newyork.
Kerber is the first German to win the US Open since Steffi Graf in 1996.
Kerber will inherit No1 ranking from Serena Williams.
Kerber, 28, won US Open to her victory after wining Australian Open.