MADRID, SPAIN - MAY 4 : Serena Williams in action at the 2015 Mutua Madrid Open WTA Premier Mandatory tennis tournament (Photo credit: Jimmie48 Photography / Shutterstock.com)

MADRID, SPAIN – MAY 4 : Serena Williams in action at the 2015 Mutua Madrid Open WTA Premier Mandatory tennis tournament (Photo credit: Jimmie48 Photography / Shutterstock.com)

Serena Williams 6-3, 6-7 (2), 6-2 victory over Lucie Safarova, 28, was a fitting finale to a challenging run to a Grand Slam singles title.

“I probably topped for my most difficult time to win,” she said.

She has 20 major singles titles now, the third most on the women’s list behind Margaret Court, with 24, and Steffi Graf, with 22. Watch out Graf, Williams, 33, may tie this year following favorable finishes at Wimbledon and the United States Open.

In 1999, Williams won her first major — and the Williams family’s first — when she was 17.