In a thrilling final against a rising star, Serena Williams added to her record-breaking title run on Saturday afternoon at Wimbledon by claiming her sixth title at the Championships. The American defeated Garbine Muguruza in straight sets to complete a second self-stylized ‘Serena Slam.’

Up against a player seeded No. 20th in the world, Williams had to weather an early storm from Muguruza, as the Spaniard broke serve early. However, Williams rebounded successfully and reeled off consecutive games to win the opening set. From there, she stormed to a 5-1 lead in the second set before drama ensued, as Muguruza broke serve twice to level the match 5-4. Williams, however, did not allow a deciding set, as Williams broke serve one final time before claiming her title with a 6-4, 6-4 win.

“Garbiñe played so well,” Williams said. “I didn’t even know it was over – she was fighting so hard at the end. Congratultions – don’t be sad, you’ll be holding this trophy very, very soon, believe me!

“I can’t believe I’m standing here with another Serena Slam. It’s really cool. And the crowd helped me through it – I heard all the ‘I love yous’ and I love you more! It’s such an honor. It feels so good.”

Williams’ Serena Slam consists of consecutive Grand Slam title wins from the 2014 United States Open up until her Wimbledon 2015 title. If she can defend her US Open title, she will have completed the Calendar Grand Slam. She is also the oldest woman to ever win a Grand Slam title.

Most impressive of all, this was Williams’ 21 Major title, which puts her one behind Steffi Graf’s Open Era record of 22 titles.